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Tender Document for Bhokar Water Supply Scheme BHOKAR MUNICIPAL COUNCIL, BHOKAR Name of work :

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Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete.

FACE SHEET

1. 2. 3. 4. 5. 6. 7. Estimated cost put to tender Earnest Money Class of Contractor Cost of Tender form Type of Tender Period of issue of Tender Form Date and Time of Pre-Bid Meeting with Contractor Date and Time of Submission Date and Time of Opening of Tenders Time Limit Rs.16,37,06,000/Rs.16,37,060/Class-I in M.J.P./ P.W.D. Rs. 20,200/B-1 25-07-2011 to 20-08-2011 upto 16:00 hours 20-08-2011 at 15:00 hours in the office of Chief Officer Bhokar Muncipal Council On or before 22-08-2011 upto 14.00 hours On 22-08-2011 at 16.00 hours 12 months from the date of work order including monsoon.

8. 9. 10.

Issued to................................................................................................... Registered in Class ............... ...................... .................................................... Vide D.R. No. ...................... Dated. ........... ......................

Chief Officer, Bhokar Municipal Council, Bhokar, Dist.Nanded.

Contractor.

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CHECK SHEET

1. Two envelope system shall be followed. A. Contents of Envelope 1 (Technical Bid): Earnest money in the form of Term Deposit Receipt valid for 6 months' period from the prescribed date of opening of Tender. Income Tax Return for last three years (FY 2009-10, 2008-09, 2007-08) duly certified by Chartered Accountant. Copy of Pan Card Registration certificate i.e. Company registration, partnership Deed etc. VAT Registration certificate. Certificate of registration in appropriate class with MJP / PWD Declaration by bidder in Statement no. VII Undertaking & Guarantee in Statement No. VI Details of similar kind of works carried out by the bidder in Statement no. II Details of other works tendered for & in hand in Statement no. III Details of machinery immediately available with the bidder in Statement no.IV &I Details of technical personnel with the bidder in Statement no. V Proof of payment of tender fees. Filled tender document duly signed by authorised signatory. Authority letter in favour of person signing the bid & documents Blank Tender document All the above mentioned documents shall have to be submitted duly sigend by the Authorized signatory B. Contents of Envelope 2 (Financial Bid): The Contractor should fill the percentage (%) in B-1 form in figures and words. No other document should be submitted in envelope 2.

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Tender Document for Bhokar Water Supply Scheme

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BHOKAR MUNICIPAL COUNCIL, BHOKAR E-TENDER NOTICE For

Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded

Tender Notice No 08/2011-12/

Chief Officer, Bhokar Municipal Council, Bhokar invites B-1 tenders for the following works from the registered contractors with Maharashtra Jeevan Pradhikaran/ Public Works Department in Class ­I etc. The tenders can be purchased from web site of Bhokar: http://zp.maharashtra.etenders.in the term and conditions will be available on website. The tenders will have to be purchased and filled up through E-Tendering only. All the contractors must have registration for E-Tendering through Digital Signature.

Name of Work

Approx. value of work Rs. in Crore

Sale of Tender Document

Date of Receipt

Earnest Time for Cost of Money completion blank Rs. In of works document Lakhs in Months in Rs. (including monsoon) Rs. 20,200/(Rupees Twenty Thousands Two Hundred only)

Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, IntakeWell, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete.

Rs. 16.37/-

25.07.2011 20.08.2011 22.08.2011 14=00 Hours

16.37

12 Months Including Monsoon

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Detailed tender notice with terms and conditions is displayed on the notice Board of the Bhokar Municipal Council,Bhokar on the web site and will also be available in the office of the Chief Officer on working days. Tender document can be downloaded from web site http://zp.maharashtra.etenders.in during the period mentioned above. The tenders will be opened in presence of intending tenderers on 22.08.2011 at 16=00 Hours., If possible. The pre bid meeting will be held on 20.08.2011 at 15:00 Hrs. in The Chief Officer Chamber. The tender document is not transferable and the cost is not refundable under any circumstance. The tenderers are requested to ascertain the Pre-Bid Meeting criteria for tendering as mentioned in Detailed Tender Notice, before purchasing the tender document. Right to accept or reject any or all tenders without assigning any reasons are reserved with Chief Officer, Municipal Council, Bhokar Joint Ventures are not allowed.

Chief Officer Bhokar Municipal Council, Bhokar

Contractor.

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Tender Document for Bhokar Water Supply Scheme SECTION ­I TENDER NOTICE TENDER NOTICE NO. ( _08___) / 2011-12 System E - TENDER NOTICE NO. 08FOR 2011-12

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MJP/PWD approved Contractors are hereby notified that the Tender form for Prequalification for the following work in the Dist. Nanded is being invited by the M.J.P./P.W.D Contractors registered under Class I category intending to tender for this work. Contractors are hereby requested to contact to the Chief Officer, Municipal Council, Bhokar (Phone No.02467-222299) to get the copy of tender notice , free of cost. 1. Name of Work :Providing & Constructing Head Works (Coffer Dam, Approach

Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete. for Bhokar Municipal Council. 2. Estimated Cost :- Rs. 16,37,06,000/3. Time Limit for Completion :- 12 Calendar Months (Construction) & 3 Months (Trial run & Commissioning) 4. Only those Contractors who fulfill to following requirements / condition will be eligible a) b) c) Registration with Maharashtra Department in Class-I. Registration Certificate of VAT. Certificate having satisfactorily completed one work of similar type and magnitude under a single contract, to be submitted with the application for blank tender form. Jeevan Pradhikaran / Public Works

CHIEF OFFICER Bhokar Municipla Council, Bhoakr Dist. Nanded

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Tender Document for Bhokar Water Supply Scheme BHOKAR MUNICIPAL COUNCIL, BHOKAR DIST.NANDED DETAILED TENDER NOTICE System E - TENDER NOTICE NO.( _08__ ) FOR 2011-12

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Sealed online tenders ( e-tender ) in B-1 forms (Percentage Rate Tenders) are invited by the Chief Officer Bhokar Municipal Council,Bhoakr in a manner of the "Two Envelope system "online by e-tendering system from the qualified contractors only. The Blank tender forms will be available on online sub portal http://zp.mahrashtra.etenders.in to the Prequalified contractors . . All the documents required for qualification should scanned and uploaded online on sub portal http://zp.maharashtra.etenders.co.in. The DD should be drawn in the name of Chief Officer Bhokar Municipal Council,Bhoakr payable at Bhokar Dist. Nanded Sealed percentage rate tender in B-1 form in two envelope system are invited from the qualified, registered contractors in Class-I with Maharashtra Jeevan Pradhikaran / Public Works Department, so as to reach the office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded, on or before 22-08-2011 upto 14.00 hours. 1. 2. 3. 4. Name of Work : Taluka District Job : : : Bhokar Water Supply Scheme Bhokar Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete.

2.0.0. e-tendering Instructions to Applicants The details can be viewed and downloaded online directly from the Government of Maharashtra e-tender Portal http://zp.maharashtra.etenders.in 1. Detail tender notice can be seen on the notice board in the office of the Chief Officer, Bhoakr Municipal Council ,Bhokar (Copy can be obtained free of cost from Chief Officer on request). Blank tender booklets are available on the Government of Maharashtra website http://maharashtra.etenders.in through Sub Portal of http://zp.maharashtra.etenders.co.in. The competent authority reserves all rights of rejecting any or all tender without assigning any reason. 5. 6. Estimated Cost put to Tender : Rs.16,37,06,000/Earnest Money : a) Rs.16,37,060/- in shape of FDR of Nationalized / Scheduled Bank for minimum six months' validity period from the date prescribed for opening of tender in the name of Chief Officer, Bhokar Municipal Council, Bhokar, payable at Bhokar, shall have to be deposited and will be included in Envelope No.1. Exemption certificate or any other form towards Earnest Money Deposit will not be acceptable.

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b) This earnest money amount shall not carry any interest whatsoever The earnest money will be refunded in case of tenderers whose tenders are not accepted, only after completion of all formalities in respect of the accepted tender or in case of expiry of validity of offer, when specially withdrawn by the tenderer. In case of successful tenders, the earnest money will be refunded after completion of contract documents and payment of security deposit. 7. Security Deposit : Total 4%

a)

2% Initial Security Deposit of Rs.32,74,120/- to be in the form of term Deposit receipt in the name of Chief Officer Bhokar Municipal Council, Bhokar or in the shape of Bank Guarantee form any Scheduled / Nationalize bank in the form Specified, for a minimum period not less than the period specified in the tender for completion of all works including trial run period, extendible upto at least two years after satisfactory commissioning of the work by the successful tenderer. In case the Bank Guarantee is submitted for initial security deposit. It will be the entire responsibility of the contractor for extension of the same till the above period. Rs.49,11,180/- to be recovered through each Running Bill at 4% so as to make up the total security deposit amount of Rs.81,85,300/-. Stamp Duty

b) c)

Stamp duty at 2% of total security deposit i.e. initial security deposit to be recovered through bills is payable as per relevant Act, on the date of agreement.

d) offer should be inclusive of works contract, turn over tax. e) Bidder shall have to submit insurance policies as per clause 60 f) Royalty amount to be paid by the contractor to Bhokar Sub-Divisional Officer. Bill

wise consumption and royalty paid statement should be furnished with each running account bill. 8. 9. 10. Period of Completion 12 months from the date of issue of work order (including monsoon season). Validity 120 days after actual opening of complete tender. Issue of Blank Tender Forms : Blank tender forms will be issued on payment of Rs.20,200/- per set. Tender forms will be issued on 25-07-2011 to 20-08-2011 upto 16.00 hours. Tender fees once paid will not be refunded. Blank tender documents will be issued to those only entities how satisfies the eligibility criteria contractors who do not produce such documents. Similarly, Contractors having adverse reputation will not be issued the tender forms. The bidder shall have to submit the demand draft of the said amount issued by the Nationalised / Scheduled Bank in favour of "the Chief Officer", Bhokar Municipal Council payable in Bhokar. However, blank tender document does not mean the entitity is eligible for the project. Selection of successful bidder is subject to detailed evaluation of documents submitted in envelope.1 and financial bid submitted in envelope 2 11. Eligibility Criteria : Following shall be the criteria for eligibility. d) Registration with Maharashtra Department in Class-I. Jeevan Pradhikaran / Public Works

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Tender Document for Bhokar Water Supply Scheme e) f) Registration Certificate of VAT.

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Certificate having satisfactorily completed one work of similar type and magnitude under a single contract, to be submitted with the application for blank tender form. A Pre-Bid Meeting open to prospective tenderers will be held on 20-08-2011 at 15.00 hours in the office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded, wherein the prospective tenderers will have an opportunity to obtain clarifications regarding the work and the tender conditions. The tenderers are free to ask for any additional information or clarification either in writing or orally and the reply to the same will be given in writing and this clarification referred to as common set of conditions, which shall form part and parcel of the tender documents and shall be applicable to all tenderers. The tender submitted by tenderer shall be based on the clarifications, additional facilities issued, if any, by Bhokar Municipal Council, Bhokar. This tender shall be unconditional. Conditional tenders will be summarily rejected.

12.

Pre-Bid Meeting a)

b)

c) d) 13.

Last Date of Submission of Tender Forms Sealed tenders should be submitted on 22-08-2011 upto 14.00 hours in the office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded. Any delay in respect of tender either by post or by hand delivery would be the responsibility of Contractor and such tenders which are received late will not be accepted.

14. A)

Manner of Submission of Tender and its accompaniments : The tender shall be submitted in two separate sealed envelopes as below : Envelope No.1 The first envelope clearly marked as Envelope No.1 and Name of work shall contain The following documents : a) Earnest money in the form of Term Deposit Receipt valid for 6 months' period from the prescribed date of opening of Tender. b) Income Tax Return for last three years (FY 2009-10, 2008-09, 2007-08) duly certified by Chartered Accountant. c) Copy of Pan Card d) Registration certificate i.e. Company registration, partnership Deed etc. e) f) VAT Registration certificate. Certificate of registration in appropriate class with MJP / PWD

g) Declaration by bidder in Statement no. VII h) Undertaking & Guarantee in Statement No. VI i) j) l) Details of similar kind of works carried out by the bidder in Statement no. II Details of other works tendered for & in hand in Statement no. III Details of technical personnel with the bidder in Statement no. V

k) Details of machinery immediately available with the bidder in Statement no.IV &I

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Tender Document for Bhokar Water Supply Scheme m) Proof of payment of tender fees. n) Filled tender document duly signed by authorised signatory. o) Authority letter in favour of person signing the bid & documents p) Blank Tender document

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q) All the above mentioned documents shall have to be submitted duly sigend by the Authorized signatory All above documents should be enclosed in Envelope No.1. If these documents are not complete, Envelope No.2 will not be opened. B) Envelope No.2 : The second envelope clearly marked as Envelope No.2 and Name of work shall contain only the main tender including the common set of condition/ stipulations issued by the Bhokar Municipal Council, Bhokar, after the pre-tender conference, duly signed by the Contractor. A tender submitted without this would be considered as invalid. The tenderer should quote his offer on B-1 form of the tender as percentage of estimated rates at the appropriate place on tender documents, to be submitted only in Envelope No.2. He should not quote his offer anywhere else directly or indirectly in Envelope No.1 The Contractor shall quote for the work as per details given in the main tender and also based on the details of conditions issued / additional stipulations made by the Bhokar Municipal Council Bhokar, as informed to him by a letter after pre- tender conference. This tender shall be unconditional. C) Submission of Tender : The two sealed envelopes No.1 and No. 2 shall again be put in one common cover and sealed. All the three envelopes shall be marked on the left hand top corner as "Tender for Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded - Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete" & to be addressed to "the Chief Officer, Bhokar Municipal Council, Bhokar". Each envelope will be marked as envelope No. 1/2 as the case may be . The full name and address of the tenderer and the name of authorized agent delivering the sealed cover containing the tender shall be written on the bottom left hand corner. The tenders should be submitted in the Office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded, on 22-08-2011 upto 14.00 hours. 15. Opening of Tenders : The tenders will be opened on 22-08-2011at 16.00 hours, in the office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded, if possible, in presence of intending bidders or their authorized representatives, who choose to remain present. Following procedure will be adopted for opening of tenders. Envelope No.1 First of all, Envelope No.1 of the tender will be opened to verify its contents as per requirements. If the various documents contained in this envelope do not meet the requirements of the Bhokar Municipal Council, Bhokar, a note will be recorded accordingly by the tender opening authority, and the said tenders Envelope No.2 will not be considered for further action, but the same will be recorded.

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Tender Document for Bhokar Water Supply Scheme Envelope No.2

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After opening of Envelope No.1, if contents of Envelope No.1 are found to be acceptable to the Bhokar Municipal Council, Bhokar, then only this Envelope No.2 shall be opened immediately. The tendered rates in Schedule "B" as percentage above / below the estimated cost put to tender shall then be read out. 16. 17. 18. 19. Contractor along with the tender has to give the list of works at hand and list of tenders submitted to Bhokar Municipal Council, Bhokar. No Tender with arbitration clause will be considered. Conditional Tender will be summarily rejected. Right to modify the Tender Documents : The right is reserved to revise or to amend the contract documents prior to the date of submission of tender or the receipt of the tender or the extend the date said above such revisions, amendments or extension if any shall be communicated to all concerned in the form of corrigendum or by notice in the press as may be considered suitable. 20. Acceptance of Tender : Right to reject any or all tenders without assigning any reasons thereof is reserved by the competent authority, whose decision will be final and legally binding on the tenderers.

Chief Officer, Bhokar Municipal Council, Bhokar, Dist.Nanded.

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Tender Document for Bhokar Water Supply Scheme STATEMENT NO. I (To be included in Envelope No.1) QUESTIONNAIRES ON MACHINERY

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Proforma for information regarding availability / Procurement of machinery required for this work. A) Machinery required for this building work be owned by the tenderer or agreement regarding hire of the cement concrete work plant and machinery e.g cement concrete mixer, plate vibrator, needle vibrator M.S. centering plates & steel prop, tippers, etc. List of machinery required Sr.no 1 2 3 4 5 6 7 8 Description of machinery Cement concrete mixer (0.3 m3 capacity) Dewatering diesel engine pumps 5HP Capacity Automatic Dumpy level set Timbering Materials, Centering Sheets, Runners etc. Vibrators of required capacity Tripod with chain pulley block Cranes (5 to 10 Tonnes capacity) C.C. Cube moulds Quantity required (Nos.) 2 1 1 70 m2 2 2 1 6

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Question -1: Is the above machinery owned by you and available with you for immediate deployment on this work. If Yes, give information in this sample form Type Of Machine 1 No of Units Name of works on which deployed at present 3 Location Output Works in hand 6

2

4

5

B) Is the above machinery owned by you and available with you for immediate deployment on this work ? If yes, give information in this sample form Question -2 If answer to Question -1 is " No" please state how this machinery will be procured by you? If the machinery is hired by you , given information in this sample form Type Of Machine 1 No of Units Name of works on which deployed at present 3 Location Output Works in hand 6

2

4

5

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STATEMENT NO. II DETAILS OF WORKS OF SIMILAR TYPE AND MAGNITUDE CARRIED OUT BY THE CONTRACTOR

Sr. No. 1 Name of work 2 Tendered cost 3 Time in which completed 4 Date of completion 5 Principal features 6

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STATEMENT NO. III DETAILS OF OTHER WORKS TENDERED FOR AND IN HAND ON THE DATE OF SUBMISSION OF THIS TENDER

Sr. No. 1 Name of work 2 Place and cost 3 Tendered cost 4 Works in hand Cost of Anticipate Estimated remaining d date of cost and work completion date 5 6 7 Work Tendered for When Stipulated Remarks decision period of expected completion 8 9 10

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STATEMENT NO. IV DETAILS OF MACHINERY IMMEDIATELY AVAILABLE WITH THE TENDERER FOR THE USE ON THIS WORK

Sr. No. 1 Name of Equipment 2 No. of units 3 Make 4 Capacity 5 Age & Condition 6 Remarks 7

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STATEMENT NO. V DETAILS OF MINIMUM TECHNICAL PERSONNEL WITH THE TENDERER

Sr. No. 1 1. Designation 2 Project Manager No. 3 1 Name 4 Qualification experience in detail 5 B.E. Civil with minimum 5 Years Experience. B.E. Civil with minimum 2 Years Experience. Diploma in Civil Engineer with 2 Year Experience. BE Mechnical Engineer 2 Year Experience. ITI Trained. For Two Months Only Professional 6 Remarks 7 Sr. No. 1,2,3 & 5 for all the time

2.

Senior Engineer

1

3.

Site Engineers

2

4.

Mechnical Engineer

1

5.

Site Supervisors

4

6.

Mechnical Supervisor

1

Diploma in Mechnical Engineer with 5 year Experience.

For Six Months

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Tender Document for Bhokar Water Supply Scheme

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FORM B-1

Percentage Rate Tender and Contract for Works

DEPARTMENT Name of work :

:

Bhokar Municipal Council, Bhokar

Bhokar Water Supply Scheme Tq.Bhokar Dist. Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete.

General Rules Directions for the Guidance of Contractor : 1. All the works proposed to be executed by contract shall be notified in a form of invitation to tender pasted on a note M.C. hung up in the office of the Chief Officer signed by the Chief Officer. This form will state the works to be carried out as well as the date for submitting and opening tenders and the time allowed for carrying out the work also the amount of earnest money to be deposited with the tender and amount of the security deposit to be deposited by the successful tenderer and the percentage, if any, to be deducted from bills, it will also state whether a refund of quarry fees, royalties dues and ground rents will be granted. Copies of the specifications, designs Drawings and estimated rates, scheduled rates and any other documents required In connection with the work shall be signed by the Chief Officer for the purpose of identification and shall also be open for inspection by the Contractors at the office of the Chief Officer during office hours. Where the works are proposed to be executed according to the specifications recommended to a Contractor and approved by a competent authority on behalf of the Municipal Council such specifications with designs and drawings shall form part of the accepted tender. 2) In the event of the tender being submitted by a firm, it must be signed by each partner there of and in the event of the absence of any partner, it shall be signed on his behalf by a person holding a power of Attorney authorizing him do so. i) The Contractor shall pay along with the tender the sum of Rs.16,37,060 /Rs .Sixteen Lakh Thirty Seven thousand Sixty Only only) in shape of FDR of Nationalized / Scheduled Bank for minimum six months' validity period from the date prescribed for opening of tender in the name of Chief Officer, Bhokar Municipal Council, Bhokar, payable at Bhokar, shall have to be deposited and will be included in Envelope No.1. Exemption certificate or any other form towards Earnest Money Deposit will not be acceptable. In the event of his tender being accepted, subject to the provisions of subclause (iii) below the said amount of earnest money shall be appropriated towards the amount of security deposit payable by him under conditions of General conditions of Contract.

ii)

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Tender Document for Bhokar Water Supply Scheme iii)

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If, after submitting the tender, the contractor withdraws his offer or modifies the same, the same, or if, after the acceptance of his tender, the Contractor neglects to furnish the balance amount of security deposit without prejudice to any other rights and powers of the M.C.hereunder or in law, M.C. shall be entitled to forfeit the full amount of the earnest money deposited by him. In the event of his tender not being accepted, the amount of earnest money deposited by the Contractor shall, unless it is prior thereto forfeited under the provisions of sub-clause (iii) above, be refunded to him on his passing receipt therefor.

iv)

3)

Receipts for payment made on account of any work, when executed by a firm, should also be signed by all the partners expect where the contractors are described in their tender as firm, in which case the receipt shall be signed in the name of the firm by one of the partners, or by some other person having authority to give effectual receipts for the firm. Any person who submits a tender shall fill up the usual printed form stating at what rate below or above the rates specified in schedule B (Memorandum showing item of work to be carried out ) he is willing to undertaken the work. Only one rate or such percentage on all the estimated rates scheduled rates shall be named. Tenders which propose any alteration in the work specified in the said form of invitation to tender, or in the time allowed for carrying out the work, or which contain any other conditions of any sort will be liable or rejection. No printed form of tender shall include a tender for more than one work, but if the contractors who wish to tender for two or more works, they shall have the name and the number of work to which they refer, written outside the envelope. The Chief Officer or his duly authorized assistant shall open tenders in the presence of the Contractors who have submitted their tender or their representatives who may be present at the time and he will enter the amount of the several tenders in a comparative statement in a suitable form. In the event of a tender being accepted, the Contractor shall for the purpose of identification sign copies of the specifications and other documents mentioned in Rule 1 in the event of tender being rejected, the Divisional officer shall authorize to refund the amount of earnest money deposited to the Contractor making the tender, on his giving a receipt for the return of the money. The officer competent to dispose of the tender shall have the right of rejecting all or any of the tenders. No receipt for any payment alleged to have been made by a contractor in regard to any matter relating to this tender or the contract shall be valid and binding on the M.C. unless it is signed by the Chief Officer. The memorandum of work to be tendered for and the schedule of Materials to be supplied by the M.C. and their rates shall be filled in and completed by the office of the Chief Officer before the tender form is issued. If a form issued to an intending tenderer has not been so filled in and completed, he shall request the said office to have this done before he completes and delivers his tender. All works shall be measured net by standard measure and according to the rules and customs of the M.C. and without reference to any local custom. Under no circumstances shall any Contractor be entitled to claim enhanced rates for items in this contract. Every registered Contractor should produce along with his tender, Certificate of Registration as approved contractor in the appropriate class renewal of such registration with date of expiry.

4)

5)

6) 7)

8)

9) 10) 11)

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Tender Document for Bhokar Water Supply Scheme 12) 13) All corrections and additions or pasted slips should be initialed.

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The measurements of work will be taken according to the usual methods in use in the M.C. and no proposals to adopt alternative methods will be accepted. The Chief Officers decision as to what is the usual method in use in the M.C. will be final A tendering contractor shall furnish a declaration along with a tender showing all works for which he has already entered into contract and the value of the work that remains to be executed in each case on the date of submitting the tender. Every contractor shall furnish along with the tender, information regarding the income tax Circle or Ward of the District in which he is assessed to income tax, the reference to the number of the assessment and the assessment year and a valid income tax Clearance Certificate. In view of the difficult position regarding the availability of foreign exchange, no foreign exchange would be released by the M.C. for the purchase of plant and machinery required for the execution of the work contracted for ( GCM /PWD/ CFM/ 1058/62517 of 26.05.1959 ) The Contractor will have to construct shed for shoring controlled and valuable materials issued to him under Schedules A of the Agreement at work site , having double locking arrangement. The materials will be taken for use in the presence of the M.C. 's person. No materials will be allowed to be removed from the site of works. The Contractors shall also give a list of machinery in their possession which they propose to use on the work. Every Contractor shall furnish along with the tender a statement showing previous experience and technical staff employed by him. Successful tenderer will have to produce to the satisfaction of the accepting authority a valid and current license issued in his favor under the provisions of contract labour (Regulation and Abolition ) Act 1973 before starting work failing which acceptance of the tender will be liable for withdrawal and earnest money will be forfeited to the M.C. The contractor shall comply with the provisions of Apprentices Act, 1961 and the rules and orders issued there under from time to time. If he fails to do so, his failure will be branch of the contract and the Superintending Engineer, may in his discretion cancel the contract. The contractor shall also be liable for any pecuniary liability arising on account of any violation by him of the provisions of the Act. Contractor should give name and designation of minimum Technical Professionals with the contractor for completion of this tendered work in the prescribed form. Any replacement should be brought to the notice of the chief officer Bhokar Municipal Council.

14)

15)

16)

17)

18) 19) 20)

21)

22)

Contractor

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Tender Document for Bhokar Water Supply Scheme

20

Tender for works

I/We hereby tender for the execution for the Municipal Council herein before and (hereinafter refer to as M.C. ) of the works specified in the underwritten memorandum within the time specified in such memorandum within the time specified in such memorandum at _________________% % (________________________________________________________) Percent) (in figure as well as in words) percent below above the estimated rates in schedule B (memorandum showing items of work to be carried out) and in accordance with all respects with the specifications, designs, drawings and instructions in writing referred to in Rule I here of and in Clause 12 of the annexed conditions of the contract and agree that what materials for the work are provided by the M.C. such materials and the rates to be paid for them shall be as provided in schedule-A hereto. Memorandum 1 a) General Description Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Trial Run etc. complete. . b) c) d) Estimated cost Earnest Money Security Deposit i) In the form of TDR / FDR To be deducted from from the current bills Total e) Rs.16,37,06,000.00 Rs.16,37,060.00 c) The amount of earnest money to be deposited shall be in accordance, with the provisions of para 206 and 207 of M.P.W. manual d) This deposit shall be in accordance with paras 213 , 214 of the M.P.W. Manual a) if several sub-works are included same should be. In figures as well as in words.

Rs.32,74,120.00 Rs.49,11,180.00

ii)

Rs.81,85,300.00 (4) (four) % e) This percentage where no security deposit is taken will vary from 5% to 10% according to the requirement of the case, where security deposit is taken, see note to clause I of conditions of contract

Percentage, if any to be deducted : from bills so as to make up the total amount required as security deposit by the time, half the work, s measured by the costs, is done.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

21

f)

Time allowed for the work from date of written order to commence

: 12 months including monsoon

f) Give schedule where necessary showing dates by which the various items are to be completed * Amount to be specified in words and figures

2. I/ we agree that the offer shall remain open for acceptance for a minimum period of 120 days form the date fixed for opening the same and thereafter until it is withdraw by me/us by notice in writing duly addressed to the authority opening the tenders and sent by registered post A.D or otherwise delivered at the office of such authority Bank Challan No. and Date or Deposit at call Receipt No. and in respect of the sum of *Rs.____________________(Rs._________________________ ______________________________________________________only) representing the earnest money is herewith forwarded. The amount of earnest money shall not bear interest and shall be liable to be forfeited to the M.C. should, I/We fail to (I ) abide by the stipulations to keep the offer open for the period mentioned above or (ii)sign and complete the contract documents as required by the Engineer and furnish the Security Deposit specified in item (d) of the memorandum contained in paragraph (i)above within the time limit laid down in clause (i)of the annexed General conditions of the Contract the amount of earnest money may be adjusted towards the security deposit or refunded to me/us if so desired by me/us in writing unless the same or any part there of has been forfeited as aforesaid. 3. I/We have secured exemption from payment of earnest money after executing the necessary bond in favour of the M.C. a true copy of which is enclosed herewith should any occasion for forfeiture of earnest money for this work arise due to failure on my our part to abide by the stipulations to keep the offer open for the period mentioned above or to sign and complete the contact document and furnish the security deposit as specified in item (d) of the memorandum contained in paragraph (1)above within the time limits laid down in clause (1 )of the annexed General conditions of contract the amount payable by me/us at the option of the Engineer be recovered out of the amount deposited in lump sum for securing exemption in so far as the same may extend in terms of the said bond and in the event of the deficiency out of any other moneys which are due or payable to me/us by the M.C. under any other contract or transaction of any nature whatsoever or otherwise. 4. Should this tender be accepted i/we agree to abide by and fulfill all the terms and provisions of the conditions of contract annexed here so far as applicable and in default there of to forfeit and pay to the M.C. the sums of money mentioned in the said conditions Receipt No. ________________________/dated_________________From the M.C. of Bank ________________at in respect of the sum of Rs.________________is herewith forwarded representing the earnest money (a) the full value of which is to be absolutely forfeited to the M.C. should I/We do not deposit in full amount of security deposit specified in the above memorandum in accordance with (d) of clause (1 ) of the tender for works shall be refunded.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

Contractor Signature of contractor before submission of tender day of 2011

22

Address

Witness

Signature of Witness to Contractor's signature

Address

Occupation

The above tender is hereby accepted by me for and on behalf of Bhokar Municipal Council, Bhokar.

Chief Officer, Bhokar Municipal Council, Bhokar. ( or his duly authorized Assistant )

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme CONDITIONS OF CONTRACT Clause-1 : Security Deposit

23

The person/ persons whose tender may be accepted (hereinafter called the contractor which expression shall unless excluded by or repugnant to the context include his heirs, executors, administrators, and assigns shall (A) within ten days (which may be extended by the Chief Officer concerned upto 15 days if the Chief Officer thinks fit to do so ) of the receipt by him of the notification of the acceptance of his tender deposit with the Chief Officer in cash of Government securities endorsed to the Chief Officer (if deposited for more than 12 month) of sum sufficient which will make-up the full security deposit specified in the tender or (B) (permit M.C., Bhokar at the time of making any payment to him for work done under the contract to deduct such sum as will amount to 4% of all moneys so payable such deductions to be held by M.C., Bhokar by way of security deposit ) provided always that in the event of the Contractor depositing a lump sum by way of security deposit as contemplated at (A) above then and in such case, if the sum so deposited shall not amount to 4 % of the total estimated cost of the work, it shall be lawful for M.C., Bhokar at the time of making any payment to the contractor for the work done under the contract to make ­ up the full amount (4%) by deducting sufficient sum from such payment as last aforesaid until the full amount of the security deposit is made up. All compensation or other sums of money payable by the Contractor to M.C., Bhokar under terms of this contract may be deducted from or paid by the sale of sufficient part of his security deposit or form the interest arising there from, or from any sums which may be due or may become due by M.C., Bhokar to the contractor under any other contract or transaction of any nature on any account whatsoever and in the event of his security deposit being reduced by reason of any such deduction or sale as aforesaid, the Contractor shall within ten days thereafter make good in cash or Government securities endorsed as aforesaid any sum or sums which may have been deducted from or raised by sale of his security deposit or any part there of. The security deposit referred to when paid in cash may at the cost of the depositor, be converted into interest bearing securities provided that the depositor has expressly desired this in writing. If the amount of the security deposit to be paid in a lump sum with in the period specified at (A) above is not paid the tender/ contract already accepted shall be considered as cancelled and legal steps taken against the Contractor for recovery of the amounts. The amount of security deposit lodged by a Contractor shall be refunded along with the payment of the final bill, if the date upto which the Contractor has agreed to maintain the work in good order is over. If such date is not over only 90 % amount of security deposit shall be refunded along with the payment of the final bill, the amount of security deposit retained by the M.C., Bhokar shall be released after expiry of period upto which the Contractor has agreed to maintain the work in good order is over. In the event of the Contractor failing or neglecting to complete rectification work within the period upto which the Contractor has agreed to maintain the work in good order and then subject to provisions of Clauses 17 and 20 hereof the amount of security deposit retained by M.C., Bhokar shall be adjusted towards the excess cost incurred by the M.C., Bhokar on rectification work. Clause-2 : Compensation for Delay The time allowed for carrying out the work as entered in the tender shall be strictly observed by the Contractor and shall be reckoned from the date on which the order to commence work is given to the Contractor. The work shall throughout the stipulated period of the contract be proceeded with all due diligence (time being deemed to be essence of the contract on the part of the Contractor) and the

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

24

Contractor shall pay as compensation an amount equal to one percent or such smaller amount as the Chief Officer ( whose decision in writing shall be final) may decide of the amount of the estimated cost of the whole work as shown by the tenderer for everyday that the work remains un-commenced or unfinished after the proper dates. And further to ensure good progress during execution of the work, the Contractor shall be bound in all cases in which the time allowed for any work exceeds one month to complete. ¼ of the work in ¼ of the time ½ of the work in ½ of the time ¾ of the work in ¾ of the time Note : The quantity of the work to be done within a particular time to be specified above shall be fixed and inserted in the blank space kept for the purpose by Officer competent to accept the contractors after taking into consideration the circumstances of each case. In the event of the Contractor failing to comply with these conditions, he shall be liable to pay as compensation an amount equal to one percent or such smaller amount as Chief Officer (whose decision in writing shall be final) may decide of the said estimated cost of the whole work for everyday that the due quantity of work remains incomplete provided always that the total amount of compensation to be paid under the provisions of this Clause shall not exceed 10% of the estimated cost of the work as shown in the tender in the tender, Chief Officer should be the final authority in this respect, The following proportion will should be considered for the assessment of physical progress. Milestone Details Sl. No. Brief Description Milestone 1 (03 months) (from start) Milestone 2 (06 months) (from start) 100% 100% 100% 100% 50% 25% 100% 50% 80% Milestone 3 (09 months) (from start)

1 2 3

Head Work -- Foundation -- Super Structure -- Pump House -- Pumping Machinery & Other works Transmission cum Gravity main of D.I.K.9 Pipes Conventional W.T.P.7.00 MLD capacity Construction of R.C.C., E.S.R.

4

-- Foundations 100% -- Staging -- Vertical Wall -- Top slab and Miscellaneous works M.B.R. 25%

50%

100% 100% 50% 85%

50%

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Sl. No. Brief Description Milestone 1 (03 months) (from start) Milestone 2 (06 months) (from start) Milestone 3 (09 months) (from start)

25

5

6

Pipes, Specials and Valves, Meters -- Procurement -- Lowering, Laying including construction of chambers - Hydraulic Testing Trial and run --

50% 40%

100% 80% 50% ---

--

Note:- % shown above is cumulative physical progress of work. Liquidated Damages for non-completion: 1. For Milestone 1: 2. For Milestone 2 3. For Milestone 3 Rs.1000 per day Rs.1500 per day Rs.2000 per day

The total amount of liquidated damages to be paid under the provision of this clause shall not exceed 10 percent of the total accepted bid value. The entire work shall be completed within 12 months including monsoon. Tenderer should submit the work program in line with the above milestones along with the tender and the same to be approved after the award of work order. Clause-3 : Action when whole of security deposit is forfeited In any case in which under any clause of this contract the contractor shall have rendered himself liable to pay compensation amounting to the whole of his security deposit (whether paid) in one sum or deducted by installment) or in the case of abandonment of the work owing to serious illness or death of the Contractor or any other cause , the Chief Officer on behalf of the M.C., Bhokar shall have power to adopt any of the following course, as he may deem best suited to the interest of the M.C., Bhokar a) To rescind the contract (for which rescission notice in writing to the Contractor under the hand of Chief Officer shall be conclusive evidence) and in that case the security deposit of the Contractor shall stand forfeited and be absolutely at the deposal of the M.C., Bhokar To carry out the work or any part of the work departmentally debiting the contractor with the cost of the work, expenditure incurred on tools, plant and charges on additional supervisory staff including the cost of work charged establishment employed for getting unexecuted part of the work completed and crediting him with the value of the work done departmentally in all respects in the same manner and at the same rates as if it has been carried out by the Contractor under the terms of his contract. The certificate of the Chief Officer to the cost and other allied expenses so incurred and as to the value of the work so done departmentally shall be final conclusive against the Contractor. The order that work of the Contractor be measured up and to take such part thereof as shall be unexecuted out of his hands and to give it to another contractor to

b)

c)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

26

complete in which case all expenses incurred on advertisement for fixing a new contracting agency, additional supervisory staff including the cost of the work charges establishment and the cost of the work executed by the new contract agency will be debited to other contractors and the value of the work done or executed through the new contractor shall be credited to the Contractor in all respects and in the same manner. And at the same rates as if it had been carried out by the Contractor under the terms of his contract. The Certificate of the Chief Officer as to all the costs of the work and other expenses incurred as aforesaid for getting the unexecuted work done by the new contractor and as to the value of the work so done shall be final and conclusive against he Contractor. In case contract shall be rescinded under clause (a) above, the Contractor shall not be entitled to recover or be paid any sum for any work therefore actually performed by him under this contract unless and until the Chief Officer shall have certified in writing the performance of such work and the amount payable to him in respect there of and he shall only be entitled to be paid the amount so certified. In the event of either of the courses referred to in clause (b) or (c) being adopted and the cost of the work executed departmentally or through a new contractor and other allied expenses exceeding the value of such work credited to the contractor the amount of excess shall be deducted for any money due to the Contractor by M.C., Bhokar under the contract or otherwise howsoever or from his security deposit or the sale proceeds thereof provided, however, that the Contractor shall have no claim against M.C., Bhokar even if the certified value of the work done allied expenses provided always that whichever of the three courses mentioned In clause (a) (b) or (c) is adopted by the Chief Officer. the contractor shall have no claim to compensation for any loss sustained by him by reason of not having purchased or procured any materials or entered into any engagements or made any advances on account or with a view to the execution of the work or the performance of the contract. Clause-4 : Action when the progress of any particular portion of the work is unsatisfactory. If the progress of any particular portion of the work is unsatisfactory the Chief Officer, shall not withstanding that the general progress of the work is accordance with the conditions mentioned in Clause 2 be entitled to take action under Clause 3 (b) after giving the Contractor 10days notice in writing. The contractor will have no claim for compensation for any loss sustained by him owing to such action. Clause-5 : Contactor remains liable to pay compensation if action not taken under Clause 3 & 4. In any case in which any of the powers conferred upon the Chief Officer by Clauses 3 and 4 here of shall have become exercisable and the same shall not have been exercised the non-exercise there of shall not constitute a waiving of any of the conditions hereof and such powers shall not with standing be exercisable in the event of any future case of default by the Contractor for which under any clauses here of he is declared liable to pay compensation amounting to the whole of his security deposit and the liability of the Contractor of past and future compensation shall remain unaffected. Power to take possession of or require removal or sell contractor's plant. In the event to the Chief Officer taking action under sub-Clause (a) or (c) of Clause 3, he may if he so desires, take possession of all or any tools and plant, materials and

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

27

stores in or upon the work or the site thereof or belonging to the Contractor or procured by him and intended to be used for the execution of the work or any part there of paying or allowing for the same in account at the contract rates or in the case of contract rates not being applicable at current market rate to be certified by the Chief Officer whose giving notice in writing to the Contractor or his clerk of the work, foreman or other authorized agent require him to remove such tools, plant, materials, or stores from the premises within a time to be specified in such notice and in the event of the Contractor failing to comply with any such requisition the Chief Officer may remove them the contractor's expense or sell them by auction or private sale on account of the Contractor at his risk in all respects and the certificate of the Chief Officer as to the expenses of any such removal and the amount of the proceeds and expenses of any such sale shall be final and conclusive against the Contractor. Clause-6 : Extension of time If the contractor shall desire an extension of the time for completion of work on the ground of his having been unavoidably hindered in its execution or on any other grounds he shall apply in writing to the Chief Officer before the expiration of the period stipulated In the tender or before the expiration of 30 days from the date on which he was hindered as aforesaid or on which the cause for asking for extension occurred, whichever is earlier and the Chief Officer in his opinion, or in the opinion of Chief Officer/ Engineer in charge as the case may be, if there were reasonable grounds for granting an extension, grant such extension as he thinks necessary or proper. The decision of the Chief Officer In this matter shall be final. Clause-7 : Final Certificate On the completion of the work the Contractor shall be furnished with a certificate by the Chief Officer (hereinafter called the Engineer in charge) of such completion but no such certificate shall be given nor shall the work be considered to be complete until the Contractor shall have removed from the premises on which the work shall have been executed, all scaffolding surplus materials and rubbish and shall have cleaned of the dirt from all wood-work , doors, windows , walls, floor or other parts of any building in or upon which the work has been executed or of which he may have had possession for the Engineer-in-charge or where the measurements have been taken by his subordinates until they have received approval of the Engineer in charge the said measurements being binding and conclusive against the Contractor. If the Contractor fails to comply with requirements of this clause as to the removal of scaffolding, surplus materials and rubbish and cleaning off dirt on or before the date fixed for the completion of the work, the Engineer-in­charge may at the expenses of the Contractor. Remove such scaffolding, surplus materials and rubbish and dispose off the same as he thinks fit and clean of such dirt as aforesaid and the Contractor shall forthwith pay the amount of all expenses so incurred but shall have no claim in respect of any such scaffolding or surplus materials as aforesaid except for any sum actually realized by the sale thereof. Clause-8 : Payment of Intermediate Certificate to be regarded as advance No payment shall be made for any work, estimated to cost less than Rupees one Thousand till the whole of work shall have been completed. And certificate of completion given. But in the case of works estimated to cost more than Rupees one Thousand, the contractor shall on submitting a monthly bill there for, be entitled to receive proportionate to the part of the work then approved and passed by the Engineer-in-charge whose certificate of such approval and passing of the sum so payable shall be final and conclusive against the Contractor. All such intermediate payments only and not as payments for work actually done and completed, and shall

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

28

not preclude the Engineer-in charge as to the final settlement and adjustment of the accounts or otherwise, or in any way very of affect the contract. The final bill shall be submitted by the Contractor within one month of the date fixed for the completion of the work otherwise the Engineer in charge's certificate of the measurements and of the total amount payable for the work shall be final binding on all parties. Clause-9 : Payment at reduced rates on account of items of work not accepted as completed to be at the discretion of the Engineer in charge. The rate for several items of work estimated to cost more than Rs.1,000/- agreed to shall be valid only when the items concerned are accepted as having been completed fully in accordance with the sanctioned specifications in cases where the items of work are not accepted as so completed the Engineer in charge may make payment on account of such items at such reduced rates as he may consider reasonable in the preparation of final or on account bills. Clause-10 : Bills to be submitted monthly. A bill shall be submitted by the Contractor in each month on or before the date fixed by the engineer in charge for all works executed in the previous month and the Engineer in charge shall take or cause to be taken the requisite measurements for the purpose of having the same verified and the claim. So far as it is admissible, shall be adjusted , if possible , within ten days from the presentation of the bill, if the Contractor does not submit the bill within the time fixed as aforesaid, the Engineer in charge may depute a subordinate to measure up the said work in the presence of the Contractor or his duly authorized agent whose counter signature to the measurement list shall be sufficient warrant and the Engineer in charge may prepare a bill from such list which shall be binding on the Contractor in all respects. Clause-11 : Bills to be on printed forms. The contractor shall submit all bills on the printed forms to be hands on application at the office of the Engineer in charge. The charges to be made in the bills shall always be entered at the rates specified in the tender or in the case of any extra work ordered in pursuance of these conditions and not mentioned or provided for in the tender at the rates hereinafter provided for such work. Clause-12 : Stores to be supplied by M.C. (if applicable) If the specification or estimate of the work provides for the use of any special description of materials to be supplied from the stores of the M.C., Bhokar or if it is required that the Contractor shall use certain stores to be provided by the Engineerin-charge. (such material and stores and the prices to be charges therefore as hereinafter mentioned being so far as practicable for convenience of the Contractor but not so as in any way to control the meaning or effect of this contract specified in the schedule or memorandum hereto annexed ) the Contractor shall be supplied with such materials and stores, as may be required from time to time to be used by him for the purpose of contract only and the values of full quantity of the materials and stores so supplied shall be set off or deducted from any sums then due, or thereafter to become due to the Contractor under the contract or otherwise or from the security deposit, or the proceeds of sale there of if the security deposit is held in Government securities, the same or a sufficient portion there of shall in that case be sold for the purpose. All materials supplied to the Contractor shall remain the absolute property of the M.C. and shall on / or account be removed from the site of the work, and shall at all times be open for inspection by the Engineer-in-charge. Any such materials unused and in perfectly good condition at the time of completion or determination of the contract shall be returned to the M.C., Bhokar stores if the Engineer-in-charge so

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

29

requires by a notice in writing given under his hand, but the Contractor shall not be entitled to return any such materials except with such consent and he shall have no claim for compensation on account of any such material supplied him as to aforesaid but remaining unused by him or for any wastage or damage thereto.

Clause-12(a) All stores of control material such as cement, steel etc. to be supplied by the M.C., Bhokar to the Contractor should be kept by the Contractor under lock and key and will be accessible for inspection by the Chief Officer or his agent at all times. Clause-13 : Works to be executed in accordance with specifications drawings orders etc. The contractor shall execute the whole and every part of the work in the most substantial and workmanlike manner, and both as regards materials and every other respect in strict accordance with specifications, as per norms of the M.C., Bhokar after ascertaining the recuperation test of the percolation well and potability of water, the work of percolation well shall be continued and completed. The further sub-works shall be taken up as under. 1. 2. 3. ESR, GSR Gravity Main, Rising Main, Switch House, installation of pumping Machinery Distribution System.

The contractor shall also conform exactly, fully and faithfully to the designs, drawings and instructions in writing relating to the work signed by the Engineer-in-charge and lodged In his office and the Contractor shall be entitled to receive three sets of contract drawings and working drawings as well as one certified copy of the accepted tender along with the work order free of cost. Further copies of the contract drawings and working drawings if required by him shall be supplied at the rate of Rs.300/- per set of contract drawing and Rs.150/- per working drawings except where otherwise specified. Clause-14 : Alteration in specifications and designs not to invalidate contracts. The Engineer-in-charge shall have power to make any alterations in or additions to the original specifications, drawings, designs and instructions and may appear to him to be necessary or advisable during the progress of the work and the contractor shall be bound to carry out the work in accordance with any instructions in this connection with may be given to him in writing signed by the Engineer-in-charge and such alteration shall not invalidate the contract and any additional work which the Contractor may be directed to do in the manner above specified as part of the work shall be carried out by the Contractor on the same conditions in all respects on which he agreed to do the main work and at the same rates as are specified in the tender for the main work. Rates for work not entered in Estimate or Schedules of rates of the district. if the additional and altered work includes any class of work for which no rate is specified in this contract then such class of work shall be carried out at the rates entered in the schedule of Rates of the Division or at rates mutually agreed upto between the Engineer-in-charge and the Contractor, whichever are lower. If the additional or altered work for which no rate is entered in the schedule of Rate of the

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

30

Division is ordered to be carried out before the rates are agreed upon then the Contractor shall within seven days of the date of receipt by him of the order to carry out the work, inform the Engineer-in-charge of the rate which is his intention to charge for such class of work and if the Engineer-in-charge does not agree to this rate, he shall be notice in writing be at liberty to cancel his order to carry out such class of work and arrange to carry it out in such manner as he may consider advisable provided always that if the Contractor shall commence work or incur any expenditure in regard there to before the rates shall have been determined as lastly hereinbefore mentioned, then in such case he shall only be entitled to be paid in respect of the work carried out or expenditure incurred by him prior to the date of the determination of the rate as aforesaid according to such rate or rates as shall be fixed by the Engineer in charge. In the event of a dispute, the decision of the Chief Officer of the Municipal Council will be final. Extension of time in consequence of additions or alterations Where, however, the work is to be executed according to the designs, drawings and specifications recommended by the Contractor and accepted by the Competent Authority, the alterations above referred to shall be within the scope of such designs, drawings, and specifications appended to the tenders. The time limit for the completion of the work shall be extended in the proportion that the increase in its cost occasioned by alterations or additions bear to the cost of the original contract work and the certificate of the Engineer-in-charge as to such proportion shall be conclusive. Clause-15 : No claim to compensation on account of loss due to delay in supply of material by M.C. 1. If at any time after the execution of the contract documents the Engineer- in charge shall for reason whatsoever (other than default on part of the Contractor for which the M.C. is entitled to rescind the contract ) desire that the whole or any part of the work specified in the tender should be suspended for any period or that the whole or part of the work should not be carried out at all he shall give to the Contractor a notice in writing of such desire and upon the receipt of such notice the Contractor shall forthwith suspend or stop the work wholly or in part as required, after having due regard to the appropriate stage at which the work should be stopped or suspended so as not to cause any damage or injury to the work or any part of it could be or could have been safely stopped or suspended shall be final and conclusive against the Contractor. The contractor shall have no claim to any payment or compensation whatsoever by reason of or in pursuance of any notice as aforesaid on account of any suspension, stoppage or curtailment except to the except specified hereinafter where the total suspension of work ordered as aforesaid continued for a continuous period exceeding 90 days the contractor shall be at liberty to withdraw from the contractual obligations under the contract so far as it pertains to the unexecuted part of the work by giving a 10 days prior notice in writing to the Engineer within 30 days of the expiry of the said period of 90 days of such intention and requiring the Engineer to record the final measurements of the work already done and to pay final bill. Upon giving such notice the Contractor shall be deemed to have been discharged from his obligation to complete the remaining unexecuted work under his contract. On receipt of such notice the Engineer shall proceed to complete the measurement and make such payment as may be finally due to the Contractor within a period of 90 days from the receipt of such notice in respect of the work already done by the Contractor . such payment shall not in any manner prejudice the right of the Contractor to any further compensation under the remaining provisions of this clause

2.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 3.

31

where the Engineer required the Contractor to suspend the work for a period in excess of 30 days at any time or 60 days in the aggregate, the contractor shall be entitled to apply to the Engineer within 30 days of the resumption of work after such suspension for payment of compensation to the extent of peculiar loss suffered by him in respect of working machinery rendered idle on the site or on the account of his having had to pay the salary of wages of labour engaged by him during the said period of suspension, provided always that the Contractor shall not be entitled to any claim in respect of any such working machinery or such suspension or in respect of any suspension whatsoever occasioned by unsatisfactory work or other default on his part. The decision of the Engineer in this regard shall be final and conclusive against the Contractor. In the event of i) ii) Any total stoppage of work on notice from the Engineer under sub-Clause (1) in that behalf. Withdrawal by the Contractor from the Contractual obligation to complete the remaining un-executed work under sub-clause (2) on account of continued suspension of work for a period exceeding 90 days Curtailment in the quantity of item or items originally tendered on account of any alteration, omission or substitutions in the specifications drawings, designs or instructions under clause 15 (1) where such curtailment exceeds 25% in quantity and the value of the quantity curtailed beyond 25% at the rates for the item specified in tender is more than Rs. 5,000/-

4.

iii)

It shall be open to the Contractor within 90 days from the service of (i) the notice of stoppage of work or (ii) the notice of withdrawal from the contractual obligations under the contract on account of the continued suspension of work of (iii) notice under Clause 15 (1)resulting in such curtailment to produce to the Engineer satisfactory documentary evidence that he had purchased or agreed to purchase material for use in the contract work before receipt by him of the notice of stoppage, suspension or curtailment and require the M.C. to take over on payment such material at the rates determined by the Engineer, provided, however, that such rates shall in no case exceed the rates at which the same was acquired by the Contractor. The M.C. shall thereafter take over the material so offered provide the quantities offered are not in excess of the requirements of the unexecuted work as specified in the accepted tender and are of quantity and specifications approved by the Engineer. Clause-15(a) : No claim to compensation on account of loss due to delay in supply of material by M.C. The contractor shall not be entitled to claim any compensation from M.C. for the loss suffered by him on account of delay by M.C. in the supply of materials entered in Schedule "Á" where such delay is caused by. a) b) c) d) Difficulties relating to the supply of railway wagons. Force majeure Act of God. Act of enemies of the State or any other reasonable cause beyond the control of M.C.

In the case of such delay in the supply of materials, M.C. shall grant such extension of time for the completion of the work shall appear to the Chief Officer to be

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

32

reasonable in accordance with the circumstances of the case. The decision of the Chief Officer as to the extension of time shall be accepted as final by the Contractor. Clause-16 : Time limit for unforeseen claims. Under no circumstances whatsoever shall the Contractor be entitled to any compensation from M.C. on any account unless the Contractor shall have submitted claim in writing to the Engineer-in-charge within one month of the case of such claim accruing. Clause-17 : Action of compensation payable in case of bad work. If at any time the security deposit or any part of there of is refunded to the Contractor it shall appear to the Engineer-in-charge or his subordinate-in-charge of the work that any work has been executed with unsound imperfect or unskilled work man ship or with materials of inferior quality, or that any materials or articles provided by him for the execution of the work are unsound or of a quality inferior to that contracted for, or are otherwise not in accordance with the contract, it shall be lawful for the Engineerin-charge to intimate this fact in writing to the contractor and then notwithstanding the fact that the work, materials or articles complained of may have been inadvertently passed, certified and paid for, the Contractor shall be bound fort with to rectify, or remove and reconstruct the work so specified in whole or in part, as the case may require or if so required shall remove the materials or articles to specified and provided other proper and suitable materials or articles at his own charge and cost and in the event of his failing to do so within a period to be specified by the Engineerin-charge in the written intimation aforesaid, the contractor shall be liable to pay compensation at the rate of one percent on the amount of the estimate for every day not exceeding 10 days during which the failure so continuous and in the event of any such failure the Engineer-in-charge may rectify or remove and re-execute the work or remove, and replace the materials or articles complained of as the case may be at the risk and expense in all respects of the Contractor, Should the Engineer-in-charge consider that any such inferior work or materials as prescribed above may be accepted or made use of, it shall be within his discretion to accept the same at such reduced rates as he may fix therefore. Clause-18 : Work to be open to inspection / Contractor or responsible agent to be present. All works under or in course of execution or executed in pursuance of the contract shall at all times be open to inspection and supervision of the Engineer-in-charge and his subordinates and the Contractor shall at all times during the usual working hours, and at all other times at which reasonable notice of the intention of the Engineer-incharge and his subordinates to visit the works shall have been given to the Contractor, either himself be present to receive orders and instructions or have a responsible agent duly accredited in writing present for that purpose. Orders given to the Contractor's duly authorized agent shall be considered to have the same force and effect as if they had been given to the Contractor himself. Clause-19 : Notice to be given before work is covered. The Contractor shall give not less than five days notice in writing to the Engineer-incharge or his subordinate-in-charge of the work before covering up or otherwise placing beyond the reach of measurement any work in order that the same may be measured and correct dimensions there of taken before the same is so covered up or placed beyond the reach of measurement and shall not cover up or place beyond the reach of measurement any work without the consent in writing of the Engineer-incharge or his subordinate-in-charge of the work, and if any work shall be covered up

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

33

or placed beyond the reach of measurement without such notice having been given or consent obtained the same shall be uncovered at the Contractor's expenses, and in default there of no payment or allowance shall be made for such work or for the materials with which the same was executed. Clause-20 : Contractor liable for damage done and for imperfections If during the period as listed below, from the date of completion as certified by the Engineer-in-charge pursuant to Clause-7 of the contract or for the period as mentioned below after commissioning the work whichever is earlier in the opinion of the Chief Officer the said work is defective in any manner whatsoever the Contractor shall for the with on receipt of notice in that be half from the Chief Officer, duly commence execution and completely carry out at his cost in every respect all the work that may be necessary for rectifying and setting right the defects specified therein including dismantling and reconstruction of unsafe portion strictly in accordance with and in the manner prescribed and under the supervision of the Chief Officer. In the event of the Contractor failing or neglecting to commence execution of the said rectification work within the period prescribed there for in the said notice and / or to complete the same as aforesaid as required by the same notice, the Chief Officer may get the same executed and carried out departmentally or by any other agency at the risk, on account and at the cost of the Contractor. The contractor shall forth with on demand pay to the M.C. the amount of such costs, charges and expensed sustained or incurred by the M.C. of which the certificate of the Chief Officer shall be final and binding on the Contractor. Such costs, charges and expenses shall be deemed to be arrears of land revenue and in the event of the Contractor failing or neglecting to pay the same on demand as aforesaid without prejudice to any other rights and remedies of the M.C. the same may be recovered from the Contractor as arrears of land revenue. The M.C. shall also be entitled to deduct the same from any amount which may then be payable or which may thereafter become payable by the M.C. to the Contractor either in respect of the said work whatsoever or from the amount of security deposit retained by the M.C. During defect liability period, the work of daily maintenance and general repairs and expenses thereon would be out of scope of the tender, However, if any defects in the sub work or in the material are found, the same will be rectified by the Contractor at his cost and will binding on him, failing to which legal action would be taken as per tender clauses, ten percent amount will be withheld from security deposit depending upon the nature of work, till the defect liability period is cover. I) a) Head Works River head works including those at storage dams, infiltration galleries, trench galleries, bank pitching, intake works, connecting pipes, approach bridges, etc. Anicuts or weirs, earthen/masonry dams and ancillary works Nalla / canal head works inclusive of infiltration wells, connecting pipes, Production and percolation wells etc. Tube wells, bore wells etc. Repairs to the works at (a) to (d) above

Five Years.

b)

Five years

c)

d) e)

Three years Three years One year

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme II) III) Pumping Machinery

34

Pumping machinery and other allied mechanical electrical installation (excluding those provided in the treatment plant contract), surge arrestors, water hammer control devices, chlorinators (excluding those provided in the treatment plant contract) One Year Repairs to the works at (a) above Treatment Plant Water treatment plant and sewage treatment plant based on Contractors design Water treatment plant and sewage treatment plant based on departmental Designs. Repairs to the treatment plants at (a) And (b) above. ESR/GSR/BPT, Sump and Pump House etc. a) b) c) d) Based on Contractors own design. Based on Department design. Special requires to ESR.GSR.BPT Ordinary repairs to ESR/GSR/BPT Sump and Pump House, etc. Five Years Three years Two years One Year Six months.

b) n) a)

Five Year

b)

Three years

c) IV)

Two years.

V) a)

Pipe Lines Pumping Mains, Gravity Mains Leading mains including intercepting Outfall sewer in case of sewerage schemes Distribution system, laterals, branch sewers of sewerage system etc. Repairs to pipe lines under the works at (a) and (b) above

Two years One year

b)

c)

Two years

The instructions contained in the Government of Maharashtra (Public works Department) Resolution dated 14th June, 1989 shall henceforth be applicable to all the works for which defect liability periods have been specified as above. The contractor shall stand guarantee for successful working of all components of work under contract for various periods as shown in this clause to wards defect liability. This defect liability. Period during which time any defects and shortcomings noticed due to faulty design and defective mechanical and electrical equipments or defective construction will have to be made good to the entire satisfaction of the M.C. / Local Body without claiming any extra cost. During defect liability period the M.C. will bear the cost of chemicals and energy. 10 % security deposit of the respective

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

35

sub-work will be released after end of defect liability period specified for that subwork. Clause-21 : Contractor to supply plant, ladders, scaffolding etc. And is liable for damages arising from non-provision of lights, fencing etc. The Contractor shall supply at his own cost all material (except such special materials, if any as may accordance with contract be supplied from the M.C. stores) plant, tools, appliances, implements, ladders, cordages, tackles, scaffolding and temporary works requisite or proper for the proper execution of the work, in the original, altered or substituted from and whether included in the specification or other documents forming part of the contract or referred to in the these conditions or not and which may be necessary for the purpose of satisfying or complying with the requirement of the Engineer-in-charge as to any matter as to which under these conditions he is entitled to be satisfied or which he is entitled to require together with the carriage there for to and from the work. The Contractor shall also supply without charge the requisite number of persons with the means and materials necessary for the purpose of setting out works and counting, weighing and assisting in the measurement or examination at any time and from time to time of the work or the materials failing this the same may be provided by the Engineer in charge at the expenses of the contractor and expenses may be deducted from any money due to the Contractor under the contract or from his security deposit or the proceeds of sale there of or a sufficient portion there of. The contractor shall provide all necessary fencing and lights required to protect the public from accident and shall also be bound to bear the expenses of deference of every suit action or other legal proceedings at law that may be brought by any person for injury sustained owing to neglect of the above precautions and to pay any damages and costs which may be awarded in any such suit action of proceedings to any such person or which may with consent of the contractor be paid for compromising any claim by any such person. List of machinery in Contractor's possession and which the proposes to use on the work should be submitted along with the tender. Clause-21(A) The Contractor shall suitable scaffolds and working platforms, gangways and stairways and shall comply with the following regulations in connection there with. a) b) Suitable scaffolds shall be provided for workmen for all works that cannot be safely done from ladder or other means. A scaffold shall not be constructed, taken down or substantially altered expect. i) ii) c) Under the Supervision of a competent and responsible person and As far as possible be competent workers possessing adequate experience in this kind of work.

All scaffolds and appliances connected there with and ladders shall : i) ii) iii) be of sound material be of adequate strength having regard to the loads and which they will be subjected and. Be maintained in proper condition strains to

d)

Scaffolds shall be so constructed that no part there of can be displaced in consequence of normal use.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme e) f) g) h)

36

Scaffolds shall not over loaded and so far as practicable the load in consequence of normal use. Before installing lifting gear on scaffolds special precautions shall be taken to ensure the strength and stability of the scaffolds. Scaffolds shall be periodically inspected by a competent persons. Before allowing a scaffolds to be used by his workmen the contractor shall, whether the scaffold has been erected by his work men or not, take steps to ensure that it complies fully with the regulations herein specified. Working platform, gangway, stairways shall : i) ii) be so constructed that no part there of can sag unduly or unequally

i)

be so constructed and maintained, having regard to the prevailing conditions as to reduce as far as practicable risk of persons tripping or slipping and. be kept free from any unnecessary obstruction.

iii) j)

In the case of working platform , gangways. Working places and stairways at a height exceeding 3 meters ( to be specified ) i) ii) iii) every working platform gangway shall be closely boarded unless other adequate measures are taken to ensure safety every working platform, gangway shall have adequate width and Every working platform, gangway, working place and stairway shall be suitably fenced.

k)

Every opening in the floor of a building or in a working platform shall except for the time and to the extent required to allow the excess of persons or the transport or shifting of material be provide with suitable means to prevent the fall of persons or material. When person are employed on a roof where there is a danger of falling from a height exceeding 3 meters ( to be specified ) suitable precautions shall be taken to prevent the fall of persons or materials Suitable precautions shall be taken to prevent persons being struck by articles which might fall from scaffolds or other working places. Safe means of access shall be provided to all working platforms and other working places. (b) (c) The contractor will have to make payments to labourers as per Minimum Wages Act. The contractor will have to make payments to labourers as per minimum wages Act.

l)

m)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-21 (B) :

37

The contractor shall comply with the following regulations as regards the Hoisting Appliances to be used by him. (a) Hoisting machines and tackles, including their attachments, anchorages and supports shall. (i) (ii) (b) be of good mechanical construction, sound material and adequate strength and free from patent defect, and. Be kept in good repair and in good working order.

Every rope used in hoisting or lowering materials or as a means of suspension shall be suitable quality and adequate strength and free from patent defect. Hoisting machines and tackles shall be examined and adequately tested after erection on the site and before use and be reexamined in position at intervals to be prescribed by the M.C. Every chain, ring, hook, shackle, swivel and pulley block used in hoisting or lowering materials or as a means of suspension shall be periodically examined. Every crane driver or hoisting appliance operator shall be properly qualified. No person who is below the age of 18 years shall be in control of any hoisting machine, including any scaffold which gives signals to the operator. In case of every hoisting machine and every chain, ring, hook shackle, swivel and pulley block used in hoisting or lowering or a means of suspension, the safe working load shall be ascertained by adequate means. Every hoisting machine and all gear referred to in proceeding. Regulation shall be plainly marked with the safe working load. In case of hoisting machine having a variable safe working load, each safe working load and the conditions under which it is applicable shall be clearly indicated. No part of any hoisting machine or any gear referred to in regulation (g) above shall be loaded beyond the safe working load except for the purpose of testing. Motors, gearing transmissions, electric wiring and other dangerous parts of hoisting appliances shall be provided with efficient safeguards. Hoisting appliances shall be provided with such means as will reduce to minimum and the risk of the accidental decent of load. Adequate precaution shall be taken to reduce to a minimum the risk of any part of suspended load becoming accidentally displayed.

(c)

(d)

(e) (f) (g)

(h) (i)

(j)

(k) (l) (m)

Clause-22 : Measure for prevention of fire. The contractor shall not set fire to any standing jungle, trees, brushwood or grass without a written permission from the Chief Officer. When such permission is given and also in all cases when destroying, cut or dug up trees, brushwood, grass, etc. by fire, the Contractor shall taken necessary measures to prevent such fire spreading to or otherwise damaging surrounding property. The Contractor shall make his own arrangements for drinking water for the labour employed by him.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-23 : Liability of contractor for any damage done in or outside work area.

38

Compensation for all damages done intentionally or unintentionally by Contractor's labour whether in or beyond the limits of the M.C. property including any damage caused by the spreading of fire mentioned Clause 22 shall be estimated by the Engineer-in-charge or such other officer as he may appoint and the estimate of the Engineer-In-charge subject to the decision of the Chief Officer on appeal shall be final and the Contractor shall be bound to pay the amount of assessed compensation on demand failing which the same will be recovered from the Contractor as damage in the manner prescribed in Clause or deducted by the Engineer-in-charge from any sums that may be due or become due from M.C. to Contractor under this contract or otherwise. The Contractor shall bear the expenses of defending any action or other legal proceedings that may be brought by any person for injury sustained by him owing to neglect of precautions to prevent the spread of fire and he shall pay any damages and cost that may be awarded by the court in consequence. Clause-24 : Employment & female labour The employment of female labourers on work in neighborhood of soldiers barracks should be avoided as far as possible. Clause-25 : Work on Sunday No work shall be done on Sunday without the sanction in writing of the Engineer-incharge. Clause-26 : Work not to be sublet The contract shall not be assigned or sublet without the written approval of the Engineer-in-charge, and if the Contractor shall assign of sublet his contract or attempt to do so Contract may be rescinded and security deposit forfeited for subletting it without approval or for bribing a public Officer or if Contractor becomes insolvent or become insolvent or commence any proceedings to get himself adjudicated and insolvent or make any composition with his creditor or attempt so to do or if bribe, gratuity, gift, loan, perquisite, reward of advantage, pecuniary or otherwise shall either directly or indirectly be given, promised or offered by the Contractor or any of his servants or agents to any public officer or person in the employment of M.C. in any way relating to his office or employment of if any such officer or person shall become in any way directly or indirectly interested in the contract the Engineer-incharge may there upon by notice in writing rescind the contract, and the security deposit of the Contractor shall thereupon stand forfeited and be absolutely at the disposal of M.C. and the same consequence shall ensure as if the contract had been rescinded under Clause 3 here of and in addition the Contractor shall not be entitled to recover or be paid for any work there of actually performed under the contractor. Clause-27 : Sum payable by way of compensation to be considered as reasonable compensation without reference to actual loss. All sums payable by a Contractor by way of compensation under any of these conditions shall be considered as reasonable compensation to be applied to the use of M.C. without reference to actual loss or damage sustained and whether any damage has or has not been sustained.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-28 : Changes in the constitution of the firm to be notified.

39

In the case of tender by partners, any change in the constitution of a firm shall be forthwith notified by the Contractor to the Engineer-in-charge for his information. Clause-29 : Direction and control of the Chief Officer. All works to be executed under the contract shall be executed under the direction and subject to the approval in all respects of the Chief Officer of the M.C., for the being. Who shall be entitled to direct at what point or points and in what manner they are to be commenced and from time to time carried out. Clause 30.1 Except where otherwise specified in the contract and subject to the powers delegated to him by M.C. under the code rules then in force the decision of the Chief Officer of M.C. for the time being shall be final conclusive and binding on all parties of the contract, upon all questions relating to the meaning of the specifications, designs, drawings and instruction here in be for mentioned and as to the quality of workmanship, or materials used on the work or as to any other question, claim, right , matter or thing whatsoever, in any way arising out of or relating to the contract designs, drawings, specifications, estimates, instructions, orders. Or these conditions, or otherwise concerning the works or the execution or failure to execute the same whether arising during the progress of the work or after the completion or abandonment there of. Clause 30.2 The contractor may within thirty days of receipt by him of any order passed by the Engineer-in-charge of the M.C. as a aforesaid appeal against it to the Chief Officer, concerned with the contract work or project provided that. (a) (b) Clause 30.3 If the Contractor is not satisfied with the order passed by the Engineer as aforesaid the Contractor, may within thirty days of receipt by him of any such order, appeal against it to the Chief Officer, Bhokar M.C., who, if convinced that prima-facie the Contractor's claim rejected by Engineer is not frivolous and that there is some substance in the claim of the Contractor as would merit a detailed examination and decision by the M.C. shall put up to the M.C. for suitable decision. Clause-31 : Deleted Clause-32 : Lumpsums in estimate. When the estimate on which a tender is made includes lumpsums in respect of parts of the work, the Contractor shall be entitled to payment in respect of the items of work involved or the part of the work in question at the same rates as are payable under this contract for each item, or if the part of the work in question is not in the opinion of the Engineer-in-charge capable of measurement, the Engineer-in-charge may at his discretion pay the lumpsum amount entered in the estimate and the certificate in writing of the Engineer-in-charge shall be final Land conclusive against the Contractor with regard to any sum or sums payable to him under the provision of this clause. the accepted value of the contract exceeds Rs. 10 lakhs (Rupees Ten lakhs) Amount of claim is not less than 1.00 lakh ( Rupees One Lakh)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-33 : Action where no specifications.

40

In the case of any class of work for which there is no such specification as is mentioned in Rule 1 of From B-1 such work shall be carried out in accordance with the Divisional specifications, and in the event of there being no Divisional specification, the work shall be carried out in all respect in accordance with all instructions and requirements of the Engineer-in-charge. Clause-34 : Definition of work. The expression "Works" where used in these conditions, shall unless there be something in the subject or context repugnant to such construction, be construed to mean the work or works contracted to be executed under or in virtue of the contract, whether temporary or permanent and whether original altered, substituted or additional. Clause-35 : Deleted Clause-36 : Refund of quarry fees and royalties All quarry fees, royalties and ground rent for stacking materials, if any, should be paid by Contractor. Clause-37 : Compensation under Workmen's Compensation Act. The Contractor shall be responsible for and shall pay any compensation to his workmen payable under the Workmen's Compensation Act, 1923 (VII of 1923) (hereinafter called the said Act) for injuries caused to the workmen. If such compensation is payable paid by the M.C. as principal under sub-section (1) of Section 12 of the said Act on behalf of the Contractor, it shall be recoverable by the M.C. from the Contractor under sub section (2) of the said section, Such compensation shall be recovered in the manner laid down in Clause 1 above. Clause 37 (A) The Contractor shall be responsible for and shall pay the expense of providing medical aid to any workman who may suffer a bodily injury as a result of an accident. If such expenses are incurred by M.C. the same shall be recoverable from the Contractor for with and be deducted without prejudice to any other remedy of the M.C. from any amount due or that may become due to the Contractor. Clause 37 (B) The Contractor shall provide all necessary personal safety equipment and fist aid apparatus available for the use of the persons employed on the site and shall maintain the same in condition suitable for immediate use at any time and shall comply with the following regulations in connection therewith. (a) The workers shall be required to use the equipment so provided by the Contractor and the contractor shall take adequate steps to ensure proper use of the equipment by those concerned. When work is carried on in proximity to any place where there is a risk of drawing, in all necessary equipment shall be provided and kept ready for use and all necessary steps shall be taken for the prompt rescue of any persons, in danger. Adequate provision shall be made for prompt first-aid treatment of all injuries likely to be sustained during the course of the work.

(b)

(c)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause 37 (C)

41

The Contractor shall duly comply with the provision of "The Apprentices Act, 1961 (III of 1961) the rules made there under and the orders that may be issued from time to time under the said Act and the said Rules and on his failure or neglect to do so he shall be subjected to all the liabilities and penalties provided by said Act and Said Rules. Clause-38 : Claim for quantity of work entered in the tender or estimate. 1. Quantities shown in the tender are approximate and no claim shall be entertained for quantities of work executed being either more or less than those entered in the tender or estimate. Quantities in respect of the several items shown in the tender are approximate and no revision in the tendered rate shall be permitted in respect of any of the items so long as subject to any special provision contained in the specifications prescribing a different percentage of permissible variation in the quantity of the item does not exceed the tender quantity by more than 25 %and so long as the value of the excess quantity beyond this limit at the rate of the item specified in the tender, is not more than Rs. 50,000/The Contractor shall, if ordered in writing by the Engineer so to do, also carry out any quantities in excess of the limit mentioned above in sub clause (1) here of on the same conditions and in accordance with the specification in tender and the rates (i) divided from the rates entered in current Schedule of Rates and in the absence of such rates (ii) at the rates prevailing in the market. The said rates being increased or decreased as the case may be by the percentage which the total tendered amount bears to the estimated cost of the works as put to tender based upon the Schedule of Rates applicable to the year in which the tenders, to be filled were invited (for the purpose of operation of this clause, this cost shall be taken as.(Rs. 16,37,06,000) Rs. sixteen Crores Thirty Seven lacs Six Thousand only. 4. The clause is not applicable to extra items, Claims arising out of reduction in the tendered quantity of any item beyond 25% will be governed by the provision of Clause 15 only when the amount of such reduction beyond 25 % at the item specified in the tender is more than Rs. 5,000/- . this reduction is exclusively the reduction in Clause Nos. 2,1,4 of work and site conditions. There in no change in the rate if the excess is less than or equal to 25 % Also there is no change in the rate if the quantity of work done is more than 25 % of the tendered quantity. But the value of the excess work at the tendered rates does not exceed Rs.5,000/The quantities to be aid at the tendered rates shall include. (a) tendered quantity plus (ii) 25% excess of tendered quantity or the excess quantity of the value of Rs.5,000/at tendered rate whichever is more. Clause-39 : Employment of female labour etc. The Contractor shall employ any famine, convict or other labour of a particular kind or class if ordered in writing to do so by the Engineer in charge Clause-40 : Claim for compensation for delay in starting the work. No compensation shall be allowed for any delay caused in the starting of the work on account of acquisition of land or in the case of clearance works, on account of any delay in accordance to sanction of estimates.

2.

3.

5.

6.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-41 : Claim for compensation for delay in execution of the work.

42

No compensation shall be allowed for any delay in the execution of the work on account of water standing in borrow pits or compartments the rates are inclusive for hard or cracked soil, excavation in mud, sub soil, water standing in borrow pits and no claim for an extra rate shall be entertained unless otherwise expressly specified. Clause-42 : Entering upon or commencing any portion of work. The contractor shall not enter upon or commence any portion of work except with written authority and instructions of the Engineer-in-charge or of his subordinate in charge of the work, Failing such authority the Contractor shall have no claim to ask for measurements of or payment for work. Clause-43 : Minimum age of persons employed and the payment of fair wages. (i) (ii) No Contractor shall employ any person who is under the age of 18 years. The Engineer-in-charge or his agent is authorized to remove from the work, any person or animal found working which does not satisfy these conditions and so responsibility shall be accepted by the M.C. for any delay caused in the completion of the work by such removal. The Contractor shall pay and reasonable wages to the workmen employed by him in the contract undertaken by him. In the event of the dispute arising between the Contractor and his workmen on the grounds that the wages paid are not fair and reasonable, the dispute shall be referred without delay to the Chief Officer who shall decide the same. The decision of the Chief Officer shall be conclusive and binding on the Contractor but such decision shall not in any way affect the conditions in the contract regarding the payment to be made by the M.C. at the sanctioned tender rates. Contractor shall provide drinking water facilities to the works similar amenities shall be provided to the workers engaged on large work in urban areas. Contractor to take precautions against accident which take place an account of labour using loose garments while working near machinery.

(iii)

(iv) (v)

Clause-44 : Method of payment. Payment to Contractor shall be made by cheque drawn on any treasury within the division convenient to them, Clause-45 : Acceptance of conditions compulsory before tendering for work. Any Contractor who does not accept these conditions shall not be allowed to tender for work. Clause-46 : Employment of scarcity labour If Government declares a site of scarcity of famine to exist in any village situated with 16 kms of the work, the Contractor shall employ upon such part of the work, as are suitable for unskilled labour, any person certified to him by the Chief Officer, or by any person to whom Chief Officer may have delegated this duty in writing to be in need of relief and shall be bound to pay to such person wages not below the minimum wages which Government may have fixed in this behalf, any disputes which may arise I connection with the implementation of this clause shall be decided by the Chief Officer whose decision shall be final and binding on the Contractor. Clause-47 : The price quoted by the Contractor shall not in any case exceed the control price, if any, fixed by Government or reasonable price which is permissible for him to charge

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

43

a private purchaser for the same class and description, the control price or the price permissible under the provision of Hoarding and Profiteering Preventing Ordinance, 1948 as amended from time to time. If the price quoted exceeds the controlled price of the price permissible under Hoarding and profiteering Prevention Ordinance, the Contractor will specifically mention this fact in his tender along with the reasons for quoting such higher prices, the purchases at his discretion will in such case excess the right of revising the price at any stage so as to conform with the controlled price as permissible under the Hoarding and Profiteering Prevention Ordinance. This discretion will be exercised without prejudice to any other action that may be taken against the Contractor. Clause-48 : The rates to be quoted by the contractor must be inclusive of Sales Tax. No extra payment on this account will be made to the Contractor. Clause-49 : In the case of materials that may remain surplus with the Contractor from those issued the date of ascertainment of the materials being surplus will be taken as the date of sale for the purpose of sales tax and the Sales tax will be recovered on such sale. Clause-50 : The Contractor shall employ at least 80 percent of the total number of unskilled labour to be employed by him on the said work from out of the persons ordinarily residing in the district in which site of the said work is located. Provided, however, that if the required number of unskilled labour from that district is not available the contractor shall in the first instance employ such number of persons as is available and thereafter may with the previous permission in writing of the Chief Officer in charge of the said work obtain the rest of the requirement of unskilled labour from outside of district. Clause-51 : Wages to be paid to the skilled and unskilled labourers engaged by the Contractor. The contractor shall pay the labours skilled and unskilled according to the wages prescribed by Minimum Wages Act applicable to the area in which the work of the Contractor is located. The contractor shall comply with the provisions of the Apprentices Act, 1961 and the Rules and order issued there under from time to time. If he fails to do so his failure will be a breach of the contract and the Chief Officer may in his discretion cancel the contract. The Contractor shall also be liable for any pecuniary liability arising on account of any violation by him of the provisions of the Act. the Contractor shall pay the labourers skilled and unskilled according to wages prescribed by Minimum Wages Act applicable to the area in which the work lies. Clause-52 : All amounts whatsoever which the Contractor is liable to pay to the M.C. in connection with the execution of the work including the amount payable in respect of (I) materials and or stores supplied issued hereunder by the M.C. to the Contractor (ii) hire charges in respect of heavy plant machinery and equipment given on hire by the M.C. to the Contractor for execution by him of the work and or for which advances will be given by the M.C. to the contractor shall be deemed to be arrears of land revenue and the M.C. may without prejudice to any other rights and remedies of the M.C. recover the same from the Contractor as arrears of land revenue.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Clause-53 :

44

The successful tenderers will be required to produce to the satisfaction of the specified concerned authority valid and consequent license issued in favour of the Contractor under the provisions of the Contract Labour (Regulation and Abolition) Act 1970 before starting the work. On failure to do so, the acceptance of the tender should be liable to be withdraw and also the earnest money. The contractor shall duly comply with al the provisions of the Contract Labour (Regulation and Abolition) Act 1970 (37 of 1970) and the Maharashtra Contract Labour (Regulation and Abolition) Rules, 1971 as amended from time to time and all other relevant states and statutory provisions concerning payment of wags particularly to workmen employed by the Contractor and working on the site of the work. In particulars the Contractor shall pay wages to each worker employed by him on the site of work at the rates prescribed under Maharashtra Contract Labour (Regulation ad Abolition ) Rules 1971 if the Contractor fails or neglects to pay wages at the said rates or makes short payment and the M.C. makes such payment of wages in full or part thereof less paid by the Contractor, as the case may be, the amount so paid by the M.C. to such workers shall be deemed to be arrears of land revenue and the M.C. shall be entitled to recover the same as such from the Contractor or deduct the same from the amount payable any the M.C. to the Contractor hereunder or from any other amounts payable to him by the M.C. Clause-54 : Where the workers are required to work near machines and are liable to accidents they should not be allowed to wear loose clothes like dhoti, Jhaba etc. Clause-55 : The Contractor shall comply with the provisions of the Apprentices Act, 1961 and the Rules and Orders issued there under from time to time if he fails to do so, his failure will be a breach of the contract and the Chief Officer may in his discretion cancel the contract. The Contractor shall pay the labourers skilled and unskilled according to wages prescribed by Minimum Wages Act applicable to the area in which the work lies. Clause-56 : A) B) C) The antimalerial and other health measure shall be as directed by the joint Director (Malaria and Filarial) of Health Services, Pune. Contractor shall see that mosquitogenic conditions are not created so as to keep vector populations to the minimum level. Contractor shall carry out anti malaria measures in area as per guidelines prescribed under National Malaria Eradication Programme and as directed by the joint Director (M & F) of Health Services, Pune. In case of default in carrying out prescribed antimalarial measure resulting increasing in malaria incidence Contractor shall be liable to pay to Chief Officer, M.C. Bhokar the amount spent by Chief Officer, M.C. Bhokar on antimalarial measures to control the situation in addition to fine. RELATION WITH PUBLIC AUTHORITIES: The Contractor shall make sufficient arrangement for draining away the sullage water as well as water coming from the bathing and washing places and shall dispose of this water in such a way as not to cause any nuisance. He shall also keep premises clean by employing sufficient number of sweepers. The Contractor shall comply with

D)

E)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

45

all rules regulation, by laws and direction given time to time by any local or public authority in connection with this work and shall pay fees or charges which are liable on him without any extra cost to Chief Officer, M.C. Bhokar. Clause 57 : Applicable Law ­ The Law which applies to the contract is the laws of Union of India with the jurisdiction of Court of Nanded. Price escalation and arbitration is excluded in this contract. Clause-58 : MVAT @ 2% will be deducted from the contractor who have registered for MVAT and 4% will be deducted from the contractor who have not registered for MVAT. Clause-59 : In case of contradiction regarding the provisions of any items following order of provisions will be following: i) ii) iii) iv) v) VI) Clause-60 : Contractors shall take out necessary insurance policy policies so as, to provide adequate insurance cover for execution of the awarded contract work from the Director of Insurance Maharashtra State, Mumbai-51 only. Its postal address for correspondence is "264, 1st floor, MHADA, Opp. Kalanagar, Bandra (E), Mumbai 51"(Tel.26590690, 26590746, 26591782, 26590403 Fax 022-265902461) Insurance policy / policies taken out from any other company will not be accepted. However, if the contractor desire to effect insurance with local office of any insurance company, the same should be under the co insurance cum servicing arrangements approved by the director of insurance. The policy taken out by the contractors is not on co insurance basis (G.I.F 60% and Insurance company 40%) the same will not be accepted and the amount of premium calculated by the director of insurance will be recovered directly from the amount payable to the contractors for the executed contract work which may be noted.

Clause 61

Provisions in Schedule "B" Detailed Specifications in volume III Drawings PWD handbook CPHEEO Manual ISI

·Ö»Ö¿Ö㬤üßú¸üÖ ëú¦ü ¯ÖÏ×úµÖÖ ¯Öæ¾ÖÔ ¾Ö ¯ÖÏ×úµÖÖê¢Ö¸ü ·Ö»Ö¾ÖÖ×ÆüµÖÖÃÖÖsüß ÖµÖÖYÖú¸ü ^Y¯ÖÖ¤ü-Ö ¿Öã»ú ´ÖÖ±ú ú¸üÖê ²ÖÖ²ÖYÖ ¯ÖÏ´ÖÖÖ ¯Ö¡Ö ÃÖÖ¤ü¸ü ú¸üÖê Óú¡ÖÖTMü¤üÖ¸üÖ¾Ö¸ü ²ÖÓ¬Ö-ÖúÖ¸üú ¸üÖÆüß»Ö. YµÖÖ²ÖÖ²ÖYÖ úÖµÖÔúÖ¸üß ×³ÖµÖÓYÖÖ ×·Ö»ÆüÖ׬ÖúÖ¸üß µÖÖÓ-ÖÖ ×¿Ö±úÖ¸üÃÖ ú¸êü»Ö ¾Ö YµÖÖ¯ÖÏ´ÖÖÖê ^Y¯ÖÖ¤ü-Ö ¿Öã»úÖYÖ ×´ÖôûÖÖ¸üß ÃÖãTMü ×¾Ö"ÖÖ¸üÖYÖ `Öêú-Ö Óú¡ÖÖTMü¤üÖ¸üÖÓ-Öß YµÖÖÓ"µÖÖ ×-Ö×¾Ö¤üÖ ³Ö¸üÖ¾µÖÖYÖ.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

46

ADDITIONAL CONDITIONS OF CONTRACT

In view expeditious execution of works under Brihat Arakhada following additional conditions are applicable. These conditions supercede the provisions of from B-1 to the extent of contradictions.

1.

Pre-Bid Meeting : a) A Pre-Bid Meeting open to prospective tenderers will be held on 02-08-2011 at 15.00 hours in the office of the Chief Officer, Bhokar Municipal Council, Bhokar Dist. Nanded, wherein the prospective tenderers will have an opportunity to obtain clarifications regarding the work and the tender conditions. The tenderers are free to ask for any additional information or clarification either in writing or orally and the reply to the same will be given in writing and this clarification referred to as common set of conditions, which shall form part and parcel of the tender documents and shall be applicable to all tenderers. The tender submitted by tenderer shall be based on the clarifications, additional facilities issued, if any, by Bhokar Municipal Council, Bhokar. This tender shall be unconditional. Conditional tenders will be summarily rejected.

b)

c) d) 2)

Liquidated Damages : a) If the proportionate work as shown in clause 2 conditions of contract is not achieved for any of the sub-work, liquidated damages shall be paid by the contractor to the employer or Engineer at the rate shown against each sub-work of that supply scheme in the table below. In case of failure by the contractor for payment of such amount of liquidated damages, employer/ Engineer shall have right to recover the amount of the same form any payment due to contractor from the Employer/ Engineer. All the work under contract including trial run for 3 months shall be completed within a period of 15 months from the date of issue of work order, failing which the contractor shall pay liquidated damages to the M.C at the rate as shown in milestone details per calendar day for each day that the completion date is later than the intended completion period. If liquidated damages as per (a) above are in force, the total liquidated damages per day will be extended to this limit. c) The total amount of liquidated damages to be paid under the provision of this clause shall not exceed 10% of cost put to tender. The period of completion of various sub-works to be refered as per the clause no 2.

b)

3)

The bills for the work done shall be prepared by the contractor himself and they should be submitted to the competent authority for payment. For works of which cost put to tender is more than 3.5 crores, the payment of R.A. Bills shall be regulated as under. i) The bill shall be submitted by the contractor in each month on or before the date fixed by the Engineer-in-charge for all executed work in the previous month. An advance payment 75% of the value of this running account bill is payable within 3 days after submission of the same. The balance due shall be paid after scrutiny and due acceptance of the bill within a fortnight. In the scrutiny of bills submitted by the contractor, if it is found that they are of exaggerated/inflated amount due to wrong measurements or wrong mathematical

ii)

iii)

iv)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

47

computations/calculations, the contractor shall have to pay penalty of sum of Rs. 1.00 Lac & Rs. 2.00 Lac at the first & second such instance respectively. In case of further repetition of such incorrect bills, the facility of such advance payment shall stand withdrawn. Subsequent bill will be paid only after detailed scrutiny of measurements and acceptance of bills thereafter. v) The concession for giving advance payment is applicable only for those tenders having accepted cost upto Rs. 5.00 crores. In respect of those tenders whose offers are less than 10 % below the cost put to tender, it is binding on the contractor to pay additional security deposit as mentioned below. Offer upto 10 % below Initial 2 % cost put to tender + 2% from R.A. Bills i.e. no. additional Security deposit. Initial 4 % of cost put to tender below to 15 % below + 2 % from R.A. Bill Initial 6 % of cost put to tender + 2 % from R. A. Bill

4)

a)

i)

ii)

Offer from 10 % more than

-

iii) b)

Offer more than 15% below

-

In respect of those tender whose offers are more than cost put to tender , it is binding on contractor to pay 4 % security deposit on cost of accepted tender i.e. initial 2 % + 2 % from R. A. Bills The earnest money and the security deposit shall be payable on the cost put of capacity more than as well as less than 5.00 Lac liters, offers shall be as per contractors design only for all service master balancing reservoirs.

c)

6)

In the event any dispute the decision of the Member Secretary (Tech ) is final. Even if the contractor goes in the court of law, the process of withdrawing of work from the contractor and allotting the same to the another contractor will continue uninterruptedly to avoid delay in execution of work. In case M.C decides to appoint a Construction, Supervision and Management Consultant (C.S.M.C.) for Supervising/Monitoring work under this contract, the Civil / Mechanical/ Electrical contractor shall be liable to execute the work under the supervision of C.S.M.C. all decisions regarding the work in such cases shall be taken by the C.S.M.C. on behalf of M.C. and will be binding on the contractor. In such cases; the contractor will have to sign the agreement between the M.C & C.S.M.C. in token of acceptance of C.S.M.C. as the sole supervisor of the works under the agreement.

7)

8)

(a) If the tender for the scheme or for a group of individual or R.W.S. Schemes consisting of work regarding construction of some ESR's having capacity upto 5 lacs liters and also some reservoir having capacity more than 5 lacs liters the offer shall be only on contractors design for all reservoir included in the tenders. (b) If the capacity of all the reservoirs in the tender are less than 5.00 lacs liters the contractors who have already successfully constructed, tested as per provisions of IS 3370and commissioned minimum 3 Nos of ESRs shall only be allowed to quote for alternative offers for the work on own design basis. The main offer however, shall be based on Departmental design only, which shall be considered as bases for selection. An offer where the contractor quotes for some reservoirs on own design and some reservoirs on Departmental design, shall be considered as Non-Responsive.

9)

Following named schemes which are part of his tender are yet to be sanctioned by the Govt. Works of these schemes will be started if any only after they are sanctioned by Govt. the M.C. reserves the right to delete if not approved any of these schemes without accepting any extra claim from contractor on this account.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

i) _______________________ ii) _______________________ iii) _______________________

48

10)

The contractor should not purchase and supply any material from M/s. Navin sales Corporation, Jaipur and M/S. Construction Engineers and Builders, Osmanabad / Hyderabad. If the contractor purchases any material from these manufactures, the same will not be allowed to be used the works. The CI / DI / MS / PVC / GI pipes ,CI / DI / GI specials and all types of valves required to be used on the work shall be got inspected by third party. At present the third party agents approved by the Maharashtra Jeevan Pradhikaran are RITES/ SGS/ Superintendence and hence the third party inspection shall be carried out through any of these agencies only. Any change in the above names of agencies will be communicated to the contractor and the third party inspection shall have to be carried out. Even after awarding the tender, through any one of the changed agencies a) the item of excavation of pipe line trenches is provided on weighted age rage basis by adopting various percentages of different type of stratas with the rate enumerated in C.S.R. When the quantity increases and Clause-38 becomes applicable the weighted average rate will be worked out from the strata wise rates of the applicable C.S.R. by keeping the same proportion of different stratas which was adopted for working of that rate put to tender. b) The weighted excavation rate put to tender is for all lifts and occasionally the depth may increase beyond 1.5 m for pipes upto 500 mm dia and for that nothing extra is payable. For pipes above 500 mm dia the increased quality attracting Clause-38 falling in the lift of 1.50 m to 3.00 m shall receive additional payment towards additional lift after working out weighted average rate on above lines for lift 0 to 1.5 m in short the principal followed at the time of finding weighted average rate will be followed for the new weighted average rate with applicable C.S.R.

11)

12)

13)

Third party inspection through the agency approved by M.C is compulsory for following electrical and mechanical equipments. a) Submersible Pumps 20 HP & above. 30 HP & above. 50 HP & above. 15 HP & above. 100 HP & above. All All Connected load of 100 HP and above i) j) Transformers L.T. Cable 315 KVA & /above 300 sq. mm. and above if length is 300 m & above. k) H.T. Cable 95 sq. mm. & above & if length required is 300 m & above.

b) V.T. Pumps ( Oil / Water lubricated ) c) Centrifugal coupled pump stets d) Centrifugal mono block pump e) Electric motors f) Auto transformer starters

g) Soft / Gentle start starters h) L.T. Panel & L.T. breaker

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

l) H.O. T. Crane / mono rail 3 MT & above. 50 KVAR bank or above All Above 25 KVA All

49

m) Capacitor n) Multi programmable automatic control unit / Motor protection relays

o) Voltage stabilizer p) Water hammer control device. 14 )

Except pumping machinery and water treatment plant, the sluice valves and air valves of all makes as per approved list of MJP from time to time are only acceptable. For sub works of water treatment plant and pumping machinery, the makes of Sluice valves and air valves acceptable are IVC Kirloskar and IVI only The design criteria for R.C.C. E.S.Rs. with Contractor own design given on page No. 41 to 43 of Volume No. III and IV are modified as under in case of following conditions and they shall be read as under in lieu of earlier condition at that Sr. No. Condition at Sr. No. 10 a) In case of reservoirs of capacity upto 500 cum the stagings of E.S. Rs. ( Columns, 500 braces, footing raft ) shall be designed in M-15 grade of concrete ( 1:2:4 ) however, casting shall be done in M-20 grade of concrete 1:11/2 :3 Prop. ) b) In case of reservoirs of capacity 50 cum and above, the design as well as construction of staging ( column, beams, footings/ raft ) shall be in M-20 only

15)

i)

ii)

Condition at Sr. No. 12 a) The width of braces shall be minimum 250 mm, b) There shall be minimum distance of 75 mm between two and jointing reinforcement bars provided in the braces as well as beams.

iii)

Condition at Sr. No. 16 a) In case of reservoirs upto 500 m3 the center to center distance between braces shall not exceed 4.50 m. at the joint of brace and columns, the links to column bars shall be tied properly and this shall be thoroughly checked before concreting. b) In case of reservoirs of capacity 500 cum and above, the center to center distance between braces shall not exceed 6.00 m at the joints of braces and columns, the links to the column bars shall be tied properly and this shall be thoroughly checked before concreting.

iv)

Condition at Sr. No. 25 (I) a) In case of reservoirs of capacity upto 500 cum the inlet, outlet , overflow and by pass piping shall be of cast iron D.F. pipes only M.S. pipes will not be allowed. b) In case of reservoirs of capacity 500 cum and above, the vertical pipe assembly, horizontal pipe line from duct foot bend of vertical pipe utpo 8 m beyond external face or nearest column and bye pass arrangement shall be in C.I.D.F. pipe/ M. S. D. F. or M.S. welded pipe only. The minimum thickness of M. S. pipe shall be 8 mm for pipe diameters upto 500 mm and 10 mm for pipe diameters above 500 mm. v) The note give on Page No. 43 of Volume No. III & IV is deleted and modified as under. NOTE :- For reservoirs of Capacity 500 cum all above conditions except Sr. No. 27 are applicable.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme CONDITIONS FOR MATERIALS (PIPES, CEMENT M.S. H.Y.S.D.BARS ETC.,) TO BE BROUGHT BY CONTRACTOR

1.

50

2.

3.

4.

6. 7.

8. 9.

10.

11.

12.

13.

All materials such as pipes, cement, mild steel, HYSD bars, bulk asphalt etc required for execution of work shall be brought by contractor at his own cost. The contractor shall maintain the record of these materials (Cement Steel etc). In the prescribed proforma and registers as directed by Engineer in charge. The sample of prescribed proforma is attached at the end . These registers shall be signed by both contractor and representatives of Engineer in charge. These register shall be made available for inspection, verification for the Department as and when required. These registers shall be in the custody of Department and shall be maintained by the Department. The materials required only for this work shall be kept in the godown at site. No material shall be shifted out side of the godown except for the work for which this agreement is entered without prior approval of the Engineer-in-charge. The material i.e pipes, cement, steel bulk asphalt etc brought on the work site shall be accompanied with the necessary company / Manufacturing firm's test certificates. In addition these material shall be tested as per frequency prescribed by the Department and the cost of such testing shall be borne by the Contractor. If the test results are satisfactory then and then only the material shall be allowed to be used on the work. If the test results are not as per standards, these materials shall be immediately removed from the work site at Contractor's cost. In case of cement, if so required by the Contractor in writing, material will be allowed to be used before receipt of the test results but this will be entirely at the risk and cost of the Contractor. At these material i.e pipe, cement, steel, etc, shall be protected from any damages, rains etc. by the Contractor at his own cost. The contractor will have to erect temporary shed of approved specifications for storing of above materials at work site having double lock arrangement (by double lock it meant that godown shall always be locked by two locks, one lock being owned and operated by contractor and other by Engineer-in-charge or his authorized representatives and the door shall be openable after both locks are opened) If required, the weighment of cement bags/steel, etc. brought by the contractor shall be carried out by the contractor at his own cost. The contractor shall not use cement and other material for the item to be executed outside the scope of this contract. Except for such ancillary small item as are connected and absolutely necessary for execution of this work as may be decided by the Engineer-in-charge. SRTMU is not responsible for the loss in cement, steel bulk asphalt etc. during transit to work site. the cement brought by the contractor at the work site store shall mean 50 kg. equivalent to 0.0347 cubic meter per bags by weight. The rate quoted should correspond to this method of reckoning. In the case of ordinary / controlled concrete, if cement is found short, the shortage/shortages will be made good by the contractor at his cost. Indemnity: The condition regarding indemnity as defined earlier will apply mutatis mutandis in case of material brought by contractor at the site for the execution of the work being executed under this contract. In case of materials brought by the contractor become surplus owing to the change in the design of the work, the materials should be taken back by the contractor at his own cost after prior permission of the Engineer-in-charge. All empty cement bags or empty asphalt drums shall be the property of the contractor and the same shall be removed immediately after completion of the work.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

51

The contractor shall establish a field laboratory, with following equipment.

1. 2. 3. 4. 5. 6. 7. 8. 15 cm CI / MS moulds for crushing strength of concrele ­ Eight in numbers. Sieves for coarse and fine aggregate analysis ­ one set. Glass Cylinders for verifying silt contents ­ 6 Pieces Slump test mould one number. Calibrated concrete strength test machine. Calibration from Govt Engineering / Polytechnic College is acceptable. Each lot of sand, aggregate, MS Reinforcement will be get tested in Govt Engineering / Polytechnic College. Alternate cube moulds will be tested in Govt Engineering / Polytechnic College. Manufacture's test certificate for all pipes and valves. Factory witness of tests to be arranged by contractor at his own cost for Chief officer Bhokar Municipal Council or his authorized representative Weigh Scale ­ balance one number. An independent laboratory with 150 Sq.fit area, provided with one table and four chairs and two racks for storing materials. Screw Guage and ____ meter for measuring thickness.

9. 10. 11.

Water to be used for concrete mixing should have drinking standards & should be get tested in Govt. laboratory.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme QUALITY ASSURANCE AND MAINTENANCE MANUAL

52

To ensure the specified quality of work which will also include necessary survey temporary works etc. the contractor shall prepare a quality assurance plan and get the same approved by the Engineer -in charge within one month from the date of work order. For this, the Contractor shall submit an organization chart of his technical personnel to be developed on the work along with their qualifications job descriptions defining the functions or reporting, supervisors inspecting and approving. The contractor shall also submit the list of tools equipment and the machinery and instrumentation which he propose to use for the construction and for testing in the field and or in the laboratory and monitoring. The contractor shall modify supplement the organization chart and the list of machinery, equipment's etc. as per the directions of S.R.T.M.U. and shall deploy the personnel and equipment on the field as per the approved chart and the list respectively. The contractor shall submit written method statements detailing his exact proposals of execution of the work in accordance with the specifications. He will get these approved from the Engineer -in-charge. The quality of the work shall be properly documented through certificates, records, check lists and log books of results etc. Such as records shall be complied from beginning of the work and be continuously updated and supplemented and this will be the responsibility of the contractor. The forms should be got approved from the Engineer-in-charge. The contractor shall prepare and submit detailed, completion drawing after completion of the work. He shall also prepare and submit a maintenance manual giving procedure for maintenance, with the periodicity of maintenance works including inspections, tools and equipment to be used, means of accessibility for all parts of structure. He shall also include in the manual the specifications for the maintenance work that would be appropriate for the technique of construction. This manual shall be submitted within the contract period. DRAWINGS CONTRACT DRAWINGS: The Contract Drawings provided for tendering purpose with the tender documents shall be used as a reference only. Contractor should visualize the nature of type of work contemplated and to ensure that the rates and prices quoted by him in the bill of quantities take due considerations of the complexities of work involved during actual execution / consideration as experienced in the field. The tendered rates / prices for the work shall be deemed to include the cost of preparation, supply and delivery of all necessary drawings, prints, tracings and negatives which the contractor is required to provide in accordance with the contract. DOCUMENTATION: If so ordered by the Engineer-in-charge, the contractor will prepare drawings of the work as constructed and will supply original and three copies to the Engineer who will verify and certify these drawings. Final as constructed drawings shall then be prepared by the contractor and applied in triplicate along with a micro-film of the same to the Engineer for record and reference purpose at the contractors cost.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SCHEDULE OF INTERMEDIATE PAYMENT FOR SUB-WORK OF RISING / GRAVITY MAIN & DISTRIBUTION SYSTEM A Providing of pipes and gaskets 1) 2) 3) B On supply of pipes with requisite test reports After laying After hydraulic testing 80% 10% 10%

53

Laying and jointing with cost of jointing material, labour etc. 1) 2) 3) After laying and jointing After hydraulic testing After satisfactory refilling 75% 20% 5%

FOR SUB-WORK OF ELEVATED SERVICE RESERVOIR / ELEVATED MBR 1) 2) 3) 4) 5) 6) 7) On approval of design Excavation & PCC On completion of footing Staging half height Staging full height Bottom slab compete Vertical wall half height Full height 8) 9) Roof slab On completion of spiral stair case / M.S. ladder 10) 11) On completion of plastering & finishing On erection of pipes, vales & constructions of chambers 12) 13) Hydraulic testing Other Misc. items as per A/T including snowcem, painting, water level indicator, lightening conductor, M.S. ladder & name plate etc. 3% 3% 1% 2% 2% 5%

- 13% - 14% - 22% 7% 8% 7%

- 10%

-

3% 100%

Note : As 10% for hydraulic testing is provided at Sr. No. 12 above, no further deductions from any of the other percentage is necessary towards hydraulic testing.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme B) FOR SUB-WORK OF RCC GROUND STORAGE RESERVOIR / RCC SUMP 1) 2) 3) 4) On approval of design excavation & PCC Bed Concrete & footing Vertical walls a) Half height b) Full height 5) 6) Roof slab On supply of pipes, valves & specials for pipe assembly 7) 8) Plaster - finishing On erection of pipes valves & construction of chambers 9) 10) Hydraulic testing Miscellaneous works, as per A/T including painting, water level indicator lightening conductor and M.S. ladder etc. 3% - 15% 5% - 17% - 18% - 10% 2% 5%

54

- 10%

- 10%

Note :

- 5% --------100% --------As per provision for hydraulic testing is made in Sr. No. 9 above, no further deduction from any of the other percentage is necessary towards hydraulic testing.

FOR SUB-WORK OF WATER TREATMENT PLANT Separately given in specifications of Water Treatment Plant.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

55

GENERAL CONDITIONS

1. Unless otherwise specifically provided for either in tender items or in specifications or in the schedule of supply of materials, all items in the tender are inclusive of cost of all materials required for the execution of the items and these, as are provided as per relevant ISS or standard specifications. All the materials used in the work shall be best quality and any materials rejected shall be removed from the site within 24 hours. All other rules regarding Workmen's Compensation, etc. shall be binding on the Contractor. All items to be executed in the course of the work have to be executed by the Contractor as specification in the P.W.D. Hand-books, the books of standard specifications, published by the Public Works M.C. of Government of Maharashtra, relevant I.S. specifications, latest editions, and practice in vogue, at the rates as per rules of the M.C. and conditions of agreement in this respect. The Contractor shall be responsible and liable to pay for damage to public property caused by him. He should keep the accounts of such materials in suitable book which would be available for inspection to the Engineer-in-charge. The Contractor shall be responsible for proper handling and safe custody of all material delivered by him for use on work. The material including pipes shall be procured by the Contractor as per requirement of work and no excess material shall be procured. Only used material shall be paid to the Contractor. For all accidents on the contracted works, the Contractor shall be responsible to pay the compensation to the sufferer or his legal dependants as per the Legal Compensation Act in force. The Contractor shall engage an authorized agent or an experienced qualified supervisor for the work capable of managing and guiding the work on his behalf. He shall take such orders as may be given to him by the Engineer-in-charge from time to time and shall be responsible to carry them out promptly. A work order book shall be maintained at the works site. The Contractor shall sign the orders given by the Engineer-in-charge and Sub-Divisional Officer and shall carry them promptly. After completion of the work, the work order book shall be surrendered to the M.C. Quantities given in the tender are approximate and are liable for variation. Excavation of the trenches will be according to actual strata met with. The Contractor shall have no claim for compensation on account of any variation in the quantities and also for any variation in the depth for trenches shown in the drawings. The Contractor shall at his own expenses make all necessary provisions for housing, water supply and sanitary arrangements for his employees and for the work under tender shall pay direct to the authorities concerned all taxes and other charges. The Contractor shall also comply with all requirements of the Health in regard to antimalaria. All items occurring in the work and as found necessary in actual execution shall be carried out in workmanship like manner as per specifications given in P.W.D. Hand Book and as per the current specifications prevalent in Municipal Council, Basmat, as per orders of the Engineer-in-charge; as stated above. It must be clearly understood that the conditions of the contract and specifications are intended to be rigidly enforced and no relaxation on the ground of conditions prevailing is to be allowed.

2. 3. 4.

5.

6.

7.

8.

9.

10.

11.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 12.

56

The Contractor will be entirely responsible for breach of laws of local bodies, Government, etc. while using private or public conveyance procuring and stacking materials. Employment of labour etc. and he will meet out all expense in this contract without any claim whatsoever on the M.C. and the M.C. shall not take any responsibility on this account. Before entering any property, plot, land, premises or areas etc., the Contractor shall make his own independent investigation through the Collector or Inspector of Land Records, etc. on his own about the ownership of the plot, etc. and he will be liable for action for act of encroachment, trespass, etc. committed by him or his labour or for the steps taken by the party concerned. The Contractor shall have to clear the site of work before the commencement of work and after the completion of the work without any extra cost. The Contractor shall construct at his cost a temporary shed of about 20 sq mt. as per specification, carpet area for use as office for inspection of the work by the officers and for discussing the details of work writing work order, etc. Necessary furniture such as chairs, tables, wooden box, etc. will be constructed and provided for within fifteen days from the date of receipt of work order. It will be maintained properly till the work is completed. The shed and furniture will be allowed to be taken back by the Contractor after the work is completed. The M.C. shall not pay any rent, charges for the shed, etc. and no M.C. 's materials will be issued by the M.C. for this shed. A jeepable service road, wherever necessary shall be provided and maintained by the Contractor at his cost till the completion of the work. The Contractor shall arrange for final lineout of works at his own cost and under supervision of responsible representatives of the M.C. All cement concrete shall be machine mixed and machine vibrated unless otherwise instructed by the Engineer in charge. The Contractor shall furnish a list of machinery in his possession which he proposes to use on the work. The Contractor shall follow the instruction in general under notes for guidance of page I and II of the P.W.D. Hand Book Volume I. Labour Regulation The Contractor will have to abide by the provisions made under the Contract Labour (Regulations and Abolition) Act 1970 and Rules made thereunder by Government of Maharashtra. License shall have to be produced prior to starting of work.

13.

14.

15. 16. 17. 18. 19. 20.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SPECIAL CONDITIONS OF CONTRACT General 1.

57

The quoted rate shall be total rate for the completed item of work as per the specifications, and shall be inclusive of all incidental charges such as lifts, leads for materials, water for construction, etc. The rates for excavation are inclusive of the fine edge of excavated pit beyond foundations. The tenderer must obtain on his own responsibility and his own expenses all the information which may be necessary for the purpose of making a tender and for entering into a contract and must consider and satisfy himself with all local conditions, sites and quarries, means of accesses, the nature of rock, material to be met with in all execution and all materials pertaining to work. Specifications of item stipulated for other sub works, shall be made applicable, where relevant. The work will be on the lines of plans attached to tender documents. The plans are, however, liable to be changed and strata as shown there is approximate. The items of work and their approximate quantities are given in Schedule-B of the tender. The rates quoted for each item are for units mentioned in Schedule-B against each item. It shall be presumed that the Contractor has satisfied himself as to the nature and location of the works, general and local conditions, particularly those bearing on transport, handling, storage of materials, availability of labour, weather conditions and has estimated the cost and quoted his rates accordingly. M.C. will bear no responsibility for lack of such acquaintance with site conditions and consequences thereof. The Contractor satisfy himself for accuracy of the details for given information, drawings & data of the site & water quality. However the final responsibility for all the information shall be that of contractor. The contractor shall be presumed of have visited the site, sampled the raw water, confirmed the availability of all the chemicals, checked all the particulars such as levels, dimensions etc. personally. The contractor shall verify himself the foundation conditions by independent explorations before quoting the offer. No claims on this account shall be entertained. Set of tender documents and conditions (upto a maximum of three sets) at the discretion of the Engineer in charge, will be supplied to the Contractor after acceptance of tender. In all cases of the omissions, doubts or discrepancies in the dimensions of the drawing and items of works, references shall be made to the Engineer in charge, whose elucidation and elaboration shall be considered final.

2.

3.

Outline of Works 1. 2. Unit 1.

Site Conditions 1.

2.

Extra, Omissions and Discrepancies

Supply of Material by the Contractor 1. The Contractor should supply all materials mentioned in Schedule `B'. This shall be conforming to relevant ISS. CI/DI/PVC/AC/PSC/MS/GI pipes and valves of various makes and CID joints will be accepted only after due inspection of SGS, RITES or Supretendance Company of India Pvt. The charges for the same shall be borne by

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

58

the Contractor. Items such as valves, specials, etc. shall be as per relevant ISS. Third party inspections shall not be insisted. for P.V.C. specials so also sluice vales, air valves and specials required for single village W.S.S. shall not be insisted for third party inspection. 2. Other materials such as cement, tor steel, etc. shall be conforming to relevant ISS. Testing charges for cement, tor steel shall be borne by the Contractor. L & T / Orient / Ambuja / Coromandal king cement of 43 grade shall be used for water retaining structures. Cement of Birla Gold, Ambuja, Vasavdatta, Orient, ACC & Rajashree can be used for other works. The cements shall be of 43 grade conforming to IS 8112/1989. 90% of procurement price will be paid to the contractor on receipt of pipes, valves, etc. with due inspection on site, 5% shall be released after lowering laying & 5% shall be released after satisfactory hydraulic testing. The Contractor shall provide, at the site of work satisfactory storage for not less than one month's average consumption of works and shall keep the cement stored in a manner that will satisfy the Engineer in charge. The arrangement of storage and utilization of cement in the order of its arrival at the stores and the Contractor shall maintain satisfactory records, which would at any time show the dates of receipt and proposed utilization of cement lying in the storage. The Engineer in charge-in-charges shall at all the times have access to the stores and sites, method of storage records, and security provided by the Contractor. The Contractor shall comply with instructions that will be given by Engineer in charge, in this behalf. The Contractor shall further at all times satisfy the Engineer in charge on demand by production of books, of submission of returns in proforma as directed, other proof. that the cement supplied is being used for the purpose for which it is supplied and the Contractor shall at all times keep his records up-to-date and available to the Engineer in charge.

3.

4.

5.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ACQUAINTANCE WITH SITE CONDITIONS & WORK CONDITIONS 1.

59

The Contractor shall study the site conditions, general conditions and data included in the tender papers and get it verified from actual inspection of the site etc. before submitting the tender. In case of doubts about any items or data included in this tender or otherwise, it shall be got clarified by applying in writing to the Engineer in charge, 15 days in advance before date of submission of the tender. Once the tender submitted, it shall be considered that the Contractor has verified and made himself conversant with all the details as required for quoting the rates and completing the work as per tender conditions and specifications. Contractor shall not sell or otherwise dispose off or remove except for the purpose of this contract, the rubble, stone metal, sand or other material, which may be obtained from any excavation, made for the purpose of the contract. All such materials shall be M.C. 's property and shall be disposed off in the manner and at place as may be directed by the Engineer-in-charge. Contractor may with the permission of the Engineer-in-charge in writing and when directed by him, use any of the materials free of cost. Other unforeseen items to be done in the course of work will have to be done by the Contractor as per specifications in P.W.D. Hand Book Volume I and II and will be paid at mutually agreed rates, ISS and standard practice in vogue. Extra charge of claims in respect of extra work shall not be allowed unless the work to which they relate are in the spirit and meaning of the specifications or unless such works are ordered in writing by the Engineer-in-charge and claimed for in the specified manner before the work is taken in hand.

2.

3.

Materials 4. The Contractor shall make his own arrangements for obtaining rubble, Khandki, headers, metal, sand, murum, etc. from M.C. or private quarry. Applications of the Contractor for reasonable area of Government land required for this purpose can be recommended to Revenue Authorities without any guarantee of making the land for quarry available. All the materials involved in the construction shall be of best quality and specifications and shall be got approved from the Engineer-in-charge before use. If necessary, materials shall be got tested from the Laboratory at his cost. Samples requiring approval shall be submitted by the Contractor to the Engineer-in-charge in good time before the use of each material. The samples shall be properly marked to show the name of the materials place. 5. The Contractor shall provide all labour, skilled as well as unskilled, pegs lime, strings, site-rails (wooden as well as steel, etc.) as and when required as per approved design and make available such other materials for surveying, lining out, setting out, checking of work, taking measurements, testing of hydraulic and other structures, without any payment by the M.C. to him. He will also provide proper approach and access to all his works and stores without any extra cost over his tendered rates for the items to be inspected. Rates quoted include clearance of site (prior to commencement of work and its closure) in all respects and hold good for work under all conditions of sites, moisture, weather, etc. Failure to comply with any of the above instructions will result in the M.C. 's doing the needful at the risk and cost of the Contractor. These conditions are for all items and as such no extra payment shall be made for observing these conditions.

6.

7.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 8. 9. 10.

60

The Contractor shall make his own arrangements for quarrying of rubble, stone, murum, sand, lime, metal, etc. Overburden in a quarry will have to be removed by the Contractor at his own cost. Unless a separate item is provided in Schedule "B" minor dewatering of foundations in excavation and during the construction of foundation masonry if required shall be done by the Contractor without claiming extra cost. Masonry shall be kept wet for at least 15 days and concrete work shall be kept wet for at least 21 days commencing from the date of its final laying in position. In case during execution curing is found inadequate, it will be carried out by M.C. and the cost thereof shall be recovered from the Contractor. The Contractor shall make his own arrangements for getting water at site at his own cost. The proportion of cement concrete specified in the Schedule `B' are nominal and are only an indication of approximate proportion of cement, fine aggregate and coarse aggregate which may have to be altered suitably at site to obtain the desired strength and workability. However quantity of cement shall not be less than the one specified below. Site Office 1. The Contractor shall have to construct and provide laboratory cum sample room and site office with toilet for the supervision staff of the Employer in addition to his site office, godowns, etc. All these structures shall be semipermanent in nature and shall be constructed by the Contractor at his own cost as per the plan prepared and approved by the Employer. 2. The site office, laboratory cum sample room shall be independent structures or shall be housed under one roof. The site office shall have a cabin for the client well equipped with computer facility. 3. The sample room shall be meant for keeping the samples of materials and the same shall be the sole property of the Employer to be supplied free of cost by the Contractor. 4. A room for site laboratory shall be provided, maintained and equipped by the Contractor at his own cost.

11.

12.

13.

14.

As per provision in the tender, after receipt of work order it is binding on the contractor to submit the work programme within 15 days to the Engineer incharge for approval in the work programme the contractor will have to give the quantity of each item. Its amount and other details to be examined monthly to the Engineer incharge this programme without doing any change in the date of commencement and period of contract, form a monthly progress of quantities of times to be executed will be finalized by the Engineer incharge with justification if any and communicated to the contractor within 15 days from the date of receipt of such programme form the contractor.

Nominal Mix 1:1.1/2:3 (M200) 1:2:4 (M 150) 1:3:6 (M 100) 1:4:8 (M80) 7.90 bags/one cum of Cement Concrete 6.27 bags/one cum of Cement Concrete 4.42 bags/one cum of Cement Concrete 3.39 bags/one cum of Cement Concrete

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

61

In case of major items of concrete for RCC works, the Contractor shall prepare test blocks as per IS Specifications for testing its tensile and compressive strength at his own cost. These blocks will be tested in any of the Government Test Laboratories at the cost of the Contractor. The number of test blocks, frequency, etc. shall be as per ISS 456/1978 (Cl.-14) and acceptance criteria of concrete shall be as per clause 15 of ISS 456-1978. Also in accordance with letter No. MJP/MS(T)/TS-1/350 dt 7.1.98 13. Damages by Floods or Accident The Contractor shall take all precautions against damage by floods and from accidents. No compensation will be allowed to the Contractor for his plant, material and works, etc. lost or damaged by floods or from other causes. The Contractor shall be liable to make good any part of material which is in charge of the Contractor and which is lost or damaged by floods or from any other cause. If the work executed is damaged, trenches filled due to any reason, Contractor shall have to make it good at his cost only. 14. Testing of Structure In the case of work which creates reasonable doubts about the quality of workmanship or of materials used in the construction, the Superintending Engineer may order the Contractor to satisfy the M.C. by carrying out a suitable load test or test of the structure or parts thereof, in the manner as prescribed in Clause - 16.5 on Page No. 45, The Indian Standard Code of Practice for, plain and reinforced concrete for general building construction or as may be approved by him, in regard to the sufficiency of the strength as designed and in the event of any deficiency being noticed as a result of the test, the Contractor shall carry out necessary strengthening or dismantling as may be directed by the Superintending Engineer. The Load test and strengthening or dismantling whenever directed shall be carried out by the Contractor entirely at his risk and cost and to the entire satisfaction of Engineer-in-charge or his authorized agent and till then the work shall not be considered to have been completed. No payment for dismantled work shall be made. 15. Supply of Rate-analysis in case of Extra Items In case of the EIRL, the Contractor shall supply Rate Analysis based on labour and material in case he is called upon to do so. 16. Water required for Construction The Contractor has to make his own arrangement at his cost for water required for construction, testing, filling, structure, etc. either from local bodies or from elsewhere, by paying the charges directly and arranging tankers, etc. as per necessity. No claim for extra payment on account of non-availability of water nearby or extra lead for bringing water shall be entertained. All required piping arrangements and pumping if required for water shall be made by the Contractor at his cost. If Contractor fails to pay the water charges to local bodies or private parties, these shall be recovered by the M.C. from his bills. In case M.C. 's water supply is available, a connections at a suitable place may be sanctioned but, all further arrangements of pumping if required, piping, etc. shall be done by the Contractor at his cost, and water charges in such a case, shall be paid by the Contractor at the rates as decided by the Engineer in charge, which shall be final and binding on the Contractor. Whenever Schedule `B' Provides for any dewatering item, payment shall be admissible under that item, but apart from that item, no extra claims for dewatering required for executing various tender items, and for executing such items in wet condition shall be entertained as all these expenses are deemed to be included in the dewatering item.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 17. Leads and Lifts

62

Unless otherwise specifically mentioned in the tender item, the tendered rate for all items in tender shall cover all lifts and leads encountered for the execution of the work as directed and no extra claims for additional lifts and leads shall be entertained. 18. Unless otherwise specifically provided for in the tender or a separate item is provided in Schedule `B', all the sides of excavated trenches after the work is completed or in progress are to be filled by the Contractor to the original ground level from excavated stuff at no extra cost to the M.C. Unless otherwise specifically mentioned in tender items, the net dimensions of RCC or CC Members actually cast are only admissible for payment under RCC or plain CC items. No increase in dimensions due to plastering or finishing shall be admissible for payment under RCC or plain CC items. Cement that will be supplied by the Contractor shall be in Jute/PVC bags. No claims for any desilting of trenches, foundation, etc., filled due to floods, untimely rains, or any other reasons whatsoever shall be entertained and Contractor shall have to do this desilting operation together with dewatering operations entirely at his cost. Electricity supply required for construction of work/labour camp, etc. shall be arranged by the contractor at his own cost.

19.

20. 21.

22.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

63

BHOKAR MUNICIPAL COUNCIL, BHOKAR

Name of work : Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Break Pressure Tank, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Staff Quarter & Miscellaneous Works etc. complete.

DATA SHEET FOR HEAD WORKS

Location GL Jack Well Dia. Type of const. GL Intake Well Dia. Type of const. No. Inspection Well GL Dia. Type of const. Connecting Main Length Dia. & type of pipe R.C.C MP3 600mm

Renapur Sudha Dam

412.500

8m

R.C.C

Top RL 410.75 Bottom RL 408.30

3m

R.C.C M25

1

Top RL 413 Bottom RL 407

2m

R.C.C M25

60m

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

64

BHOKAR MUNICIPAL COUNCIL, BHOKAR

Name of work : Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Break Pressure Tank, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Staff Quarter & Miscellaneous Works etc. complete.

DATA SHEET FOR PUMPING MACHINERY

Raw water pumping machinery at Head Works Discharge Head Type Standby Pure Water pumping machinery at Proposed W.T.P. Discharge Head Type Standby Pure Water pumping machinery at Existing W.T.P. Discharge Head Type Standby

78.66 lps

62 m

100 hp VT Pump

01

78.66 lps

57 m

90 hp VT Pupm

01

-

-

-

-

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

65

BHOKAR MUNICIPAL COUNCIL, BHOKAR

Name of work : Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Break Pressure Tank, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Staff Quarter & Miscellaneous Works etc. complete.

DATA SHEET FOR R.C.C. E.S.RS.

Name of Capacity G.L. in the area m Floor level in m F.S.L. Staging Bearing Type of height capacit constructi in m y T/m2 on Dia. of pipe in mm Inlet Dia. of Sluice valves in mm Washo ut

Outlet Washo Inlet & Outlet & ut bypass overflo w

350 mm 350 mm 350 mm 350 mm

Ward No. 8.10 lakh 10

474.00 m

-

492.00 m

14 m

-

R.C.C

CI 350 mm Double Fan

350 mm

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

66

BHOKAR MUNICIPAL COUNCIL, BHOKAR

Name of work : Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Break Pressure Tank, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Staff Quarter & Miscellaneous Works etc. complete.

DATA SHEET FOR R.C.C. G.S.R.

NAME OF THE TOWN

G.S.R. / SUMP

CAPACITY

G.L. IN M

FLOOR LEVEL

F.S.L.

REMARK

Bhokar

Hillock

20.5 lakh

-

501 m

505 m

-

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

67

BHOKAR MUNICIPAL COUNCIL, BHOKAR

Name of work : Bhokar Water Supply Scheme Tq.Bhokar Dist.Nanded Providing & Constructing Head Works (Coffer Dam, Approach Channel, Connecting Main, Intake Well, Jack Well & Pump House Approach Bridge etc.), Raw Water Pumping Machinery, Raw Water Rising Main, Break Pressure Tank, Conventional Water Treatment Plant, Pure Water Pumping Machinery, Pure Water Rising Main, R.C.C. Elevated Service Reservoir, Distribution System, Staff Quarter & Miscellaneous Works etc. complete.

DATA SHEET FOR DISTRIBUTION SYSTEM

Name of town 450 mm Bhokar 400 400 mm 800 Length & type of distribution mains D.I. K-7 / K-9 pipes 350 mm 2282 300 mm 1089 250 mm 1919 200 mm 2062 150 mm 8521 100 mm 25805 No. of stand posts No. of cattle troughs

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

67

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED.

SCHEDULE 'A' Schedule showing (approximately) the materials to be supplied from the Municipal Stores for the work contracted to be executed and the rate at which they are to be charged for. Sr.No. Description of Materials Quantity Rate at which the Material will be issued to the contractor Rs. in Rs. in figure words NIL Unit Place of Delivery.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

68

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B - Bill of Quantities RECAPITULATION SHEET

S.No

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Sub Work Estimate

SUB WORK NO.1 : COFFER DAM SUB WORK NO.2 : APPROACH CHANNEL (L=30 M) SUB WORK NO.3 : RCC INTAKE WELL (3 M dia, 6 m depth) SUB WORK NO.4 : CONNECTING MAIN (L =60M) SUB WORK NO.5 : INSPECTION WELL 2M DIA DEPTH=7.5M SUB WORK NO.6A : JACK WELL AND PUMP HOUSE (DIAMETR =8M, DEPTH=9.35M) SUB WORK NO.6B : JACK WELL AND PUMP HOUSE (DIAMETR =8M, DEPTH=9.35M) SUB WORK NO.7 : FOR APPROACH BRIDGE L = 60 M SUB WORK NO.8 : RAW WATER PUMPING MACHINERY PHASE-I SUB WORK NO.9 : RAW WATER RISING MAIN (400 MM DIA D.I.K9 L=6110M) SUB WORK NO.10 : WATER TREATMENT PLANT 7.00 MLD CAPACITY SUB WORK NO.11 : PURE WATER PUMPING MACHINARY SUB WORK NO.12 : PURE WATER RISING MAIN (400 MM DIA D.I.K9 L=1800M) SUB WORK NO.13 : RCC ESR ON WARD10 OF CAPACITY 8.10 LAKH LIT, STAGING HT=14M SUB WORK NO.14 : RCC GSR ON HILLOCK OF CAPACITY 20.50 LAKH LIT SUB WORK NO.15 : GRAVITY MAINS GM1. GM2 AND GM3 SUB WORK NO.16 : DISTRIBUTION NETWORK SUB WORK NO.17: RUNNING THE SCHEME ON TRIAL BASIS TOTAL COST PUT TO TENDER

Amount

1500000 231791 372301 748906 219839 1804531 543501 1636886 3621227 32442321 15906051 3568161 9864220 3036498 3880386 12200358 70835714 1266580 163679271

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

69

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B - Bill of Quantities SUB WORK NO.1 : COFFER DAM

Item Description of Items Qty. No. 1 2 3 1 Providing, constructing coffer dam in river basin 4000.00 / dam storages as per type design including excavation, filling, the middle portion with B. C. soil (in gunny bags if requried). Providing impervious / semipervious materials on both side of B.C. soil (in gunny bags if required) including ramming, compacting to the satisfaction of Engneer-in-charge, till the complection of work including dismantling coffer dam after complection of works and disposing off the material as directed by the Engineer-incharge.

Note: Pay line maximum - Top width payble shall be 2 mtr. and maximum payble side slopes shall be 1.5 Horizontal to 1 Vertical, if the constructed top width of the side slopes are less, then the measurements at actual are payble. Extra top width or flatter slopes are not payble. Contractor is free to use ballies, plastic sheets, piles, pipes, C.G.I. sheets for supporting hearting materials instead of impervious/ semipervious hearting materials for which no extra payments shall be payble. 30% payment shall be withheld for dismentaling of coffer dam. this foot note shall appear in tender condition. (Type section is shown in type designs) Total Rs. 1500000.00

Rate

4 375.00

Unit

5 Cum

Amount

6 1500000.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

70

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.2 : APPROACH CHANNEL (L=30 M)

Item Description of Items No. 1 2 1 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-incharge, excluding refilling.

Lift 0 to1.5m Lift 1.5 to3.0m Providing trap/granite/quartzite/gneiss rubble stone filling behind the abutment, returns or wings including all materials and hand packing and filling voids without spouts etc. completd as directed by Engineer in charge Dewatering including diversion of excavation trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-incharge (including cost of machinery, labour, fuel), etc. complete. Payment shall be released as under :25% shall be released after construction. 25% shall released after completion of last 1 M depth of excavation 20% shall be released after completion of excavation for 2 M depth above last 1 M depth. 15% shall be released after completion of excavation for 2 M above last 3 M depth. 15% for remaining height of excavation. Total Rs. 231,791.00

Qty.

3

Rate

4

Unit

5

Amount

6

2

126.00 82.50 55.20

480.00 Cum 494.00 Cum 307.00 Cum

60,480.00 40,755.00 16,946.00

3

30.00

3787.00 Rmt

113,610.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

71

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities

SUB WORK NO.3 : RCC INTAKE WELL (3 M dia, 6 m depth)

Item Description of Items No. 1 2 1 Excavation in general in soft material comprising of soft soil, soft murum, sand, hard murum with boulders in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, Supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, gurading, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer incharge,etc. complete excluding refilling. Lift 0 to1.5m 2 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-incharge, excluding refilling. Lift 1.5 to3.0m Lift3.0 to4.5m Lift 4.5 to6.0m 3 Providing and laying in situ, following grades of C.C. of trap /granite / quartzite / gneiss metal for foundation and bedding including dewatering, form work, compacting and curing, finishing, etc. complete. 4 Providing and laying in situ Cement concrete of trap/granite/ quartzite/ gneiss metal for RCC work in foundation like raft, grillage, strip foundation and footing of RCC columns and steel stanchions including normal dewatering, form work, compaction, finishing and curing, etc, complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L & T, A.C.C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted.) (excluding M.S. or Tor reinforcement) M250

Qty.

3

Unit

4

Rate

5

Amount

6

51.29

180.00

Cum

9,232.00

24.92 21.77 18.84 2.51

494.00 508.00 522.00 3000.00

Cum Cum Cum Cum

12,310.00 11,059.00 9,834.00 7,530.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

72

Item Description of Items No. 1 2 a For bottom ring beam b For roof slab Landing for ladder c For slab 5 Providing and casting in situ Cement Concrete of trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement)M25 Vertical wall-M250 Below GL 6 Providing and fixing in position steel bar reinforcement of various diameters for RCC piles, caps, footings, foundations, slabs, beams, columns, canopies, staircases. newels, chajjas, lintels, pardies, copings, fins, arches, etc. as per detailed designs, drawings and schedules; including cutting, bending, hooking the bars, binding with wires or tack welding and supporting as required, etc. complete.(including cost of binding wire). Tor steel 7 Providing, hoisting and fixing in position C.I. manohole, frame and cover of best quality and of required size and shape with locking arrangements including applying 2 coats of anticorrosive paint, etc. complete. 90 x 60, weight -35 kg 8 Providing and fixing in position C.I. Dapuri steps or 22 mm dia.M.S.bar step with proper anchorage, etc. and providing and applying 3 coats of anti-corrosive paint, etc. complete as directed by Engineer-in-charge

Qty.

3 1.21 2.42 2.51

Unit

4 4310.00 5950.00 4310.00

Rate

5 Cum Cum Cum

Amount

6 5,215.00 14,399.00 10,818.00

10.85 3.01

5950.00 5950.00

Cum Cum

64,558.00 17,910.00

1.89 1

44200.00 2114.00

MT Nos.

83,538.00 2,114.00

30

176.00

Nos.

5,280.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

73

Item Description of Items No. 1 2 9 Dewatering including diversion of excavation trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-incharge (including cost of machinery, labour, fuel), etc. complete. Payment shall be released as under :25% shall be released after construction. 25% shall released after completion of last 1 M depth of excavation 20% shall be released after completion of excavation for 2 M depth above last 1 M depth. 15% shall be released after completion of excavation for 2 M above last 3 M depth. 15% for remaining height of excavation. 10 Providing and fixing in position C.I. /m.s rose pieces in intake well including cost of all materials and labour,painting with three coats of anti corrosive oil paint ,etc. complete as directed by engineer in charge 11 Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete.

Qty.

3 1

Unit

4 50511.00

Rate

5 No

Amount

6 50,511.00

1050

63.00

Kg

66,150.00

52.65

35.00

Cum

1,843.00

Total Rs.

372,301.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

74

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities

SUB WORK NO.4 : CONNECTING MAIN (L =60M)

Item Description of Items No. 1 2 1 Excavation in general in soft material comprising of soft soil, soft murum, sand, hard murum with boulders in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, Supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, gurading, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer incharge,etc. complete excluding refilling. Lift 0 to1.5m 2 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-in-charge, excluding refilling. Lift 1.5 to3.0m Lift3.0 to4.5m Lift 4.5 to6.0m Lift 6.0 to 7.5m 3 Dewatering including diversion of excavation trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-in-charge (including cost of machinery, labour, fuel), etc. complete. Payment shall be released as under :25% shall be released after construction. 25% shall released after completion of last 1 M depth of excavation 20% shall be released after completion of excavation for 2 M depth above last 1 M depth.

15% shall be released after completion of excavation for 2 M above last 3 M depth. 15% for remaining height of excavation.

Qty.

3

Rate

4

Unit

5

Amount

6

382.50

180.00

Cum

68,850.00

202.50 175.50 148.50 67.50 60.00

494.00 508.00 522.00 536.00 3031.00

Cum Cum Cum Cum rmt

100,035.00 89,154.00 77,517.00 36,180.00 181,860.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

75

Item Description of Items No. 1 2 4 Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete. 5 Providing ISI standard R.C.C. pipes in standard lengths of following class and diameter suitable for either collar joints or rubber ring joints, including all taxes (Central and local), inspection charges, transport to departmental stores/site, unloading and stacking etc. complete. 600mm -RCC NP3 6 Lowering, laying and jointing in proper grade and alignment R.C.C. pipes with collar joints in C.M.1:1 proportion or socketed R.C.C. pipes with rubber joints (excluding cost of rubber ring or R.C.C. collar,) including cost of conveyance from stores to site of work, cost of jointing material, labour, giving hydraulic testing etc. complete as directed by Engineer-incharge (For all class of pipes.) Collar Joints. 600mm -RCC NP3

Qty.

3 953.42

Rate

4 35.00

Unit

5 Cum

Amount

6 33,370.00

60.00

2487.00

rmt

149,220.00

60.00 Total Rs.

212.00

rmt

12,720.00 748,906.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

76

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.5 : INSPECTION WELL 2M DIA DEPTH=7.5M

Item Description of Items No. 1 2 1 Excavation in general in soft material comprising of soft soil, soft murum, sand, hard murum with boulders in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, Supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, gurading, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer incharge,etc. complete excluding refilling. Lift 0 to1.5m 2 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-incharge, excluding refilling. Lift 1.5 to3.0m Lift3.0 to4.5m Lift 4.5 to6.0m Lift 6.0 to 7.5m 3 Providing and laying in situ, following grades of C.C. of trap /granite / quartzite / gneiss metal for foundation and bedding including dewatering, form work, compacting and curing, finishing, etc. complete.

Qty.

3

Rate

4

Unit

5

Amount

6

40.99

180.00

Cum

7,378.00

17.91 15.26 12.82 10.60

494.00 508.00 522.00 536.00

Cum Cum Cum Cum

8,848.00 7,752.00 6,692.00 5,682.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

77

Item Description of Items No. 1 2 4 Providing and laying in situ Cement concrete of trap/granite/ quartzite/ gneiss metal for RCC work in foundation like raft, grillage, strip foundation and footing of RCC columns and steel stanchions including normal dewatering, form work, compaction, finishing and curing, etc, complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L & T, A.C.C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted.) (excluding M.S. or Tor reinforcement)M25

a b 5 For bottom ring beam -M250 For roof slab-M250 Providing and casting in situ Cement Concrete of trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement)M250 Providing and fixing in position steel bar reinforcement of various diameters for RCC piles, caps, footings, foundations, slabs, beams, columns, canopies, staircases. newels, chajjas, lintels, pardies, copings, fins, arches, etc. as per detailed designs, drawings and schedules; including cutting, bending, hooking the bars, binding with wires or tack welding and supporting as required, etc. complete.(including cost of binding wire). Tor steel Providing, hoisting and fixing in position C.I. manohole, frame and cover of best quality and of required size and shape with locking arrangements including applying 2 coats of anticorrosive paint, etc. complete.

Qty.

3

Rate

4

Unit

5

Amount

6

0.28 1.23 11.88

4310.00 5950.00 5950.00

Cum Cum Cum

1,207.00 7,319.00 70,686.00

6

7

1.27 1

44200.00 2114.00

MT Nos.

56,134.00 2,114.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

78

Item Description of Items No. 1 2 8 Providing and fixing in position C.I. Dapuri steps or 22 mm dia.M.S.bar step with proper anchorage, etc. and providing and applying 3 coats of anti-corrosive paint, etc. complete as directed by Engineer-in-charge 9 Dewatering including diversion of excavation trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineerin-charge (including cost of machinery, labour, fuel), etc. complete. Payment shall be released as under :25% shall be released after construction. 25% shall released after completion of last 1 M depth of excavation 20% shall be released after completion of excavation for 2 M depth above last 1 M depth. 15% shall be released after completion of excavation for 2 M above last 3 M depth. 15% for remaining height of excavation. 10 Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete.

Qty.

3 40.00

Rate

4 176.00

Unit

5 Nos.

Amount

6 7,040.00

1

32524.00

No

32,524.00

63.79

35.00

Cum

2,233.00

Total Rs.

219839.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

79

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.6A : JACK WELL AND PUMP HOUSE (DIAMETR =8M, DEPTH=9.35M)

Item Description of Items No. 1 2 1 Excavation in general in soft material comprising of soft soil, soft murum, sand, hard murum with boulders in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, Supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, gurading, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer incharge,etc. complete excluding refilling. Lift 0 to1.5m Lift 1.5 to3.0m 2 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-in-charge, excluding refilling.

Lift3.0 to4.5m Lift 4.5 to6.0m Lift 6.0 to7.5m Lift 7.5 to 9.0m Lift 9.0 to 10.5m Providing and laying in situ Cement concrete of trap/granite/ quartzite/ gneiss metal for RCC work in foundation like raft, grillage, strip foundation and footing of RCC columns and steel stanchions including normal dewatering, form work, compaction, finishing and curing, etc, complete. (By weigh batching and mix design for M-250 and M300 only. Use of L & T, A.C.C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted.) (excluding M.S. or Tor reinforcement)-M250 For bottom ring beam For raft slab

Qty.

3

Rate

4

Unit

5

Amount

6

227.50 166.75

180.00 194.00

Cum Cum

40,950.00 32,350.00

115.41 108.52 101.84 95.37 22.25

508.00 522.00 536.00 550.00 564.00

Cum Cum Cum Cum Cum

58,628.00 56,647.00 54,586.00 52,454.00 12,549.00

3

a b

3.11 11.88

4310.00 4310.00

Cum Cum

13,404.00 51,203.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

80

Item Description of Items No. 1 2 4 Providing and laying in situ, following grades of C.C. of trap /granite / quartzite / gneiss metal for foundation and bedding including dewatering, form work, compacting and curing, finishing, etc. complete. 5 Providing and casting in situ Cement Concrete of trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement)M250 Below GL(5-10m) Below GL(0-5m) Above GL(0-5m) Above GL(5-10m) (MJP CSR 2009-10 /P-44/I-6) 6 Providing and fixing in position steel bar reinforcement of various diameters for RCC piles, caps, footings, foundations, slabs, beams, columns, canopies, staircases. newels, chajjas, lintels, pardies, copings, fins, arches, etc. as per detailed designs, drawings and schedules; including cutting, bending, hooking the bars, binding with wires or tack welding and supporting as required, etc. complete.(including cost of binding wire).

Tor steel

Qty.

3 6.07

Rate

4 3300.00

Unit

5 Cum

Amount

6 20,031.00

24.62 32.4 32.4 24.61

6545.00 5950.00 5950.00 6545.00

Cum Cum Cum Cum

161,138.00 192,780.00 192,780.00 161,072.00

12.24

44200.00

MT

541,008.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

81

Item Description of Items No. 1 2 7 Dewatering including diversion of excavation trenches and pools of water in the building trenches / pipeline trenches, well works by using pumps and other devices including disposing off water to safe distance as directed by Engineer-incharge (including cost of machinery, labour, fuel), etc. complete. Payment shall be released as under :25% shall be released after construction. 25% shall released after completion of last 1 M depth of excavation 20% shall be released after completion of excavation for 2 M depth above last 1 M depth. 15% shall be released after completion of excavation for 2 M above last 3 M depth. 15% for remaining height of excavation. 8 Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete.

Qty.

3 1

Rate

4 151534.00

Unit

5 L/S

Amount

6 151,534.00

326.20

35.00

Cum

11,417.00

Total Rs.

1,804,531.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

82

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.6B : JACK WELL AND PUMP HOUSE (DIAMETR =8M, DEPTH=9.35M)

Item Description of Items Qty. Rate Unit Amount No. 1 2 3 4 5 6 1 Providing and casting in suitu C.C. of trap / granite /quartizite / gnesis metal of approved quality for RCC works as per detailed drawings and design or as directed drawings and design or as directed including watering, including watering centering, form work compaction, finishing the formed surfaces with cm. 1:3 of sufficient minimum thick surface wherever necessary or roughening if special finish is to be provided and curing etc. complete. M-25 Lift 5 to 10 Roof slab 7.23 6545.00 Cum 47,320.00 Beams, Lintels, bracket( lift 5 to10m) 6.03 5962.00 Cum 35,951.00 Columns 4.45 6083.00 Cum 27,069.00 Chajjas 0.41 6633.00 Cum 2,720.00 RCC Floor Slab 15.81 6545.00 Cum 103,476.00 2 Providing and fixing in position steel bar reinforcement 3.21 44200.00 M.T 141,882.00 of various diameters for RCC piles, caps, footings, foundations, slabs, beams, columns, canopies, staircases, newels, chajjas, lintels, pardies, copings, fins, arches, etc. as per detailed designs, drawings and schedules; including cutting, bending, hooking the bars binding with wires or tack welding and supporting as required, etc. complete. ( including cost of binding wire). 3 Providing second class burnt brick masonry with 32.56 2300.00 Cum 74,888.00 conventional IS standard bricks in CM 1:6 superstructure including striking joints, racking out joints watering and scaffloding complete.

4 Providing and fixing steel window of various sizes as per details drawing without hot dip zinc coating with/ without ventilators including fabrication, glazing with nonacetinic plain / obscured glass panes approved type and quality all fixtures and fastening without teak wood boxing, and architraves and finishing with one coat of primer etc. complete. 6.75 2182.00 sqm 14,729.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

83

Item Description of Items No. 1 2 5 Providing internal cement plaster 12 mm thick in single coat in cement mortar 1:3 without neeru finish to concrete or brick surfaces, in all positions including scaffolding and curing.Providing groove at the joint of B.B Masonry and concrete members complete. 7 Providing and applying washable oil bound distemper of approved color and shade to new surfaces including scaffolding preparing the surfaces to receive the primming coat and finishing coat etc complete. 8 Providing and applying two coats of water proof cement paint of approved manufacture and of approved colour to new plastered surfaces including scaffolding if necessary, cleaning and preparing the surface , watering for two days complete. (sample and brand is to be got approved from Ex. Engineer before use) 11 Providing and fixing rolling shutter fabricated from 1/20 steel laths with side guides, bottom rail, brackets , door suspension shaft, housing box at top including mechanical gear operation arrangement and one coat of red lead primer.

12 Providing and fixing in position copper lightening conductor including copper rod of 20 mm dia as per upper terminal 1.5M long with a knob at end and with conical spike at top, aluminium tape conductor 20x 3mm size copper earth plate of 3mm thick and 0.81 sqn. in area , clamps at 1M centre to centre including, necessary excavation , laying and fixing the conductor, providing and fixing 40mm G.I pipe upto 3M height from ground and 0.5 M below gorund including making all connections, filling the earthing pit with charcoal, salt, etc. and refilling and watering, etc. complete as per specifications laid down in relevant I.S codes. Providing and fabricating structural steel work in rolled sections like joists, channels, angles, tees etc. as per detailed design and drawings or as directed including cutting, fabricating , hoisting, erecting, fixing in position making riveted / bolted / welded connections without connecting plates, braces etc. and including one coat of anticorrosive paint and over it two coats of oil painting of approved quality and shade complete.

Qty.

3 307.36

Rate

4 82.00

Unit

5 sqm

Amount

6 25,204.00

143.09

27.30

sqm

3,906.00

152.02

23.00

sqm

3,496.00

5.50

1889.00

sqm

10,390.00

1

6710.00

No

6,710.00

13

0.88

52000.0 0

kg

45,760.00

Total Rs.

543,501.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

84

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.7 : FOR APPROACH BRIDGE L = 60 M

Item Description of Items Qty. Rate Unit Amount No. 1 2 3 4 5 6 1 Excavation in general in hard material comprising of soft rock, hard rock, Manjara rock, etc, by blasting / controlled blasting / chiselling as required in wet or dry condition for Head Works i.e. Intake Well, Connecting Pipe, Jack Well, Pump House, supply Well, etc. for lift 0 to 1.5 M and lead of 150 M including baricating, guarding, disposing off surplus excavated stuff within a radius of 0.5 km. as directed by Engineer-in-charge, excluding refilling. Lift 0 to1.5m 67.50 480.00 Cum 32,400.00 2 Providing and laying in situ Cement concrete of trap/granite/ 14.58 4310.00 Cum 62,840.00 quartzite/ gneiss metal for RCC work in foundation like raft, grillage, strip foundation and footing of RCC columns and steel stanchions including normal dewatering, form work, compaction, finishing and curing, etc, complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L & T, A.C.C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted.) (excluding M.S. or Tor reinforcement) M25 3 Providing and casting in situ Cement Concrete of 52.80 5530.00 Cum 291,984.00 trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement) M25 columns

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

85

Item Description of Items No. 1 2 4 Providing and casting in situ Cement Concrete of trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement) M25 beam 5 Providing and casting in situ Cement Concrete of trap/granite/ quartzite/ gneiss metal of approved quality for RCC work as per detailed drawings and desingns or as directed by Engineer- in charge including normal dewatering, centering, form work, compaction, finishing the formed surfaces with CM 1:3 of sufficient minimum thickness if special finish is to be provided and curing, etc. complete. (By weigh batching and mix design for M-250 and M-300 only. Use of L&T, A.C. C., Ambuja, Birla Gold, Manikgad, Rajashree, etc. cement is permitted) (excluding M.S, or Tor reinforcement) M25 slab 6 Providing and fixing in position steel bar reinforcement of various diameters for RCC piles, caps, footings, foundations, slabs, beams, columns, canopies, staircases. newels, chajjas, lintels, pardies, copings, fins, arches, etc. as per detailed designs, drawings and schedules; including cutting, bending, hooking the bars, binding with wires or tack welding and supporting as required, etc. complete.(including cost of binding wire).

7 Providing and fixing GI pipe railing having 1m height consisting 50 x50 6mm thick MS angle as vertical at 1.5m c/c and additional posts at every cornerwith 3 rows of 25mm dia GI PIPE of medium class varity as horizontal and painting 3 coats of oil paint over 1 coat of anticorrosive paint of approved colour and shade including cost of all labour,tranporting bends to curved shape etc. complete.

Qty.

3 31.00

Rate

4 5420.00

Unit

5 Cum

Amount

6 168,020.00

52.50

5950.00

Cum

312,375.00

15.39

44200.00

MT

680,227.00

120.0 0

742.00

rmt

89,040.00

Total Rs.

1,636,886.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

86

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.8 : RAW WATER PUMPING MACHINERY PHASE-I

Item Description of Items No. 1 2 1 Providing, erecting, commissioning and giving test of Vertical turbine pump set, water lubricated, discharging 78.66 lps at 62 m head, operating at 1500 rpm syn speed as per datailed specifications. (As per approved makes of MJP) 2 Providing, erecting, jointing, commissioning and giving test of Sluice valve, 200 mm dia, PN 1.0, CI, DF, manually operated as per detailed specifications. (As per approved makes of MJP) 3 Providing, erecting, jointing,commissioning and giving test of Non-return valve, 200 mm dia, PN 1.0, CI, DF as per detailed specifications. (As per approved makes of MJP) 4 Providing, erecting, jointing and commissioning 80 mm dia, PN 1.6 rating Kinetic double orifice Air valve for each pump as per detailed specifications. (As per approved makes of MJP) 5 Providing, erecting, commissioning and giving test of fabricated MS flanged Pipes and specials for individual and common manifolds.

6 Providing, erecting, commissioning and giving test of HOT crane, 5 MT, 8 m span, (As per approved makes of MJP) Providing, erecting, commissioning and giving test of HT sub-station to receive electric power from MSEDCL, civil work of meter room, chain link fencing, gates, getting approval of Electrical Inspector as per analysis and speciofications. (As per approved makes of MJP) Providing, erecting, commissioning and giving test of Power transformer, 160 kVA, 11 kV/0.433 kV. (As per approved makes of MJP) Providing, erecting, commissioning and giving test of Vertical hollow shaft sqirrel cage induction motor, 415 V, 1500 rpm syn suitable for pump at item 1 above and not less than 100 HP. (As per approved makes of MJP)

Qty.

3 2

Rate

4 500000

Unit

5 Each

Amount

6 1,000,000.00

2

20492

Each

40,984.00

3

23072

Each

69,216.00

2

14457

Each

28,914.00

1000

62

kg

62,000.00

1

270498

Each

270,498.00

7

1

187700

Each

187,700.00

8

1

264539

Each

264,539.00

9

2

377975

Each

755,950.00

Item No.

Contractor

Description of Items

No. of Corrections

Qty.

Rate

Unit

Amount

Chief Officer

Tender Document for Bhokar Water Supply Scheme

87

2 Providing, erecting, commissioning and giving test of fully automatic, assembled, air break auto tranformer starter suitable for motor at item No. 8 above, and of rating not less than 100 HP. (As per approved makes of MJP) 11 Providing, erecting, commissioning and giving test of LT panel comprising of incomer and outgoing MCCBs, capacitors, bus-bars, indicating instruments etc as per analysis attached. (As per approved makes of MJP) 12 Providing, laying, electrically connecting, commissioning and giving test of 1.1 kV grade, alluminium conductor, armoured PVC/XLPE cable with crimping lugs and glands as follows (As per approved makes of MJP) 12.a 3.5 core, 120 sq.mm to be laid from transformers to LT panel in single run. 12.b 3 core, 70 sq.mm to be laid from LT panel to starters to motors in single run. 12.c 3 core, 16 sq.mm for capacitors. 13 Providing, commissioning and giving test of Earthing arrangement for HT and LT systems. 14 Providing, erecting, commissioning and giving test of HT metering cubicle for 11 kV system. (As per approved makes of MJP) Providing, laying, electrically connecting, commissioning and giving test of 11 kV grade, alluminium conductor, armoured XLPE cable, 3 core, 70 sq.mm from kiosk to sub-station incomer AB switch.(As per approved makes of MJP) Providing erecting Out door 11 kV termination kit for above cable.(As per approved makes of MJP) Giving satisfactory test and trial of all equipments installed, including skilled and unskilled man power, operation and maintenance for 3 months after commissioning as per detailed specs. Electricty bill to be paid by department

1 10

3 2

4 175125

5 Each

6 350,250.00

1

205000

Each

205,000.00

100 50 30 14

969 562 232 1700

m m m Each

96,900.00 28,100.00 6,960.00 23,800.00 0.00

15

50

1302

m

65,100.00

16

4

14329

Each

57,316.00

17

3

36000

Month

108,000.00

Total Rs.

3,621,227.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

88

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.9 : RAW WATER RISING MAIN (400 MM DIA D.I.-K9 L=6110M)

Item Description of Items No. 1 2 1 Providing D.I. pipes of following grades with internal cement mortar lining and including all taxes, insurance, railway freight, unloading from railway wagon, loading into truck, transport to departmental stores/site, unloading, stacking, etc. complete. (IS:83292000 Latest Version) . 400mm dia D.I.'K-9' pipes. (80% payment on supply, 10% after jointing and 10% after hydraulic testing)

2 Providing and supplying ISI standard D.I. specials & fittings with sealing rubber gasket of S.B.R.,complete with Cast iron follower gland and M.S. nut & bolts coated or otherwise protected from rusting and suitable for D.I. pipes including cost of all labours and materials and transportation to stores / site, loading , unloading including all taxes , etc. complete.(5% of item No.1) Providing , and supplying double flanged short body pattern type manually operated Butterfly Valve having body, disc and end cover in graded cast iron to IS 210 Gr. CF 200 generally conforming in BS 5155, Synthetic rubber faced ring secured on disc by retaining ring with stainless steel screw stub shaft of stainless steel riding in teflon bearings excluding C. C. foundation/ structural steel support confirming to IS 13095-1991, 400 mm dia. Sluice Valve 100 mm dia. Scour Valve (80% payment on supply, 10% after jointing and 10% after hydraulic testing)

Qty.

3

Rate

4

Unit

5

Amount

6

6110.00

4325.00

RMT

26,425,750.00

1

1321288.00

Lump sum

1,321,288.00

3

3 6

72832.00 7034.00

Nos Nos

218,496.00 42,204.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

89

Item Description of Items No. 1 2 4 Providing and supplying Kinetic Double Orifice type Air Valves as per MJP's standard specifications having small orifice elastic ball resting on a gun metal orifice nipple, large orifice vulcanite ball seating on moulded seat ring,with built-in Kinetic features, isolatintg sluice valve mounted in horizontal position and operated by wheel gearing, inlet face and drilled, including all taxes (Central and local), insurance, third party inspection charges, loading, unloding, transportation upto departmental stores / site, etc. complete.

100 mm PN-1.00 (80% payment on supply, 10% after jointing and 10% after hydraulic testing) 5 Excavation for foundation / pipe trenches in earth, soils of all types, sand, gravel and soft murum, including removing the excavated material upto a distance of 50 metres and lifts as below, stacking and spreading as directed, manual dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. Excavation for foundation / pipe trenches in hard murum including removing the excavated material upto a distace of 50 M and lifts as below, stacking and spreading as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. Excavation for foundation / pipe trenches by blasting in soft rock and old cement and lime masonry foundition asphalt road including removing the excavated material upto a distance of 50 M beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete.

Qty.

3

Rate

4

Unit

5

Amount

6

12

19083.00

Nos

228,996.00

1833.00

80.00

Cum

146,640.00

6

2444.00

95.00

Cum

232,180.00

7

Lift 0.00 to 1.50m.

2444.00

300.00 Cum

733,200.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

90

Item Description of Items No. 1 2 8a Excavation for foundation / pipe trenches in hard rock and concrete road by chiselling, wedging, line drilling, by mechanical means or by all means other than blasting including trimming and levelling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m. 8b Excavation for foundation / pipe trenches in hard rock and concrete road by controlled blasting wedging, line drilling, by mechanical means or by all means including trimming and levelling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-incharge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m. 9 Filling in plinth and floors murum bedding in trenches with approved murum from excavated materials from foundation 15cm to 20cm layers including watering and compaction complete. Murum bedding 10 Lowering laying and jointing with SBR rubber gaskets D.I. S/S pipes of various classes with DI / MS specials of following diameter in proper position, grade and alignment as directed by Engineer-in-charge including conveyance of material from stores to site of work, including cost of jointing materials and rubber rings labour, giving hydraulic testing etc. complete. 400mm dia D.I.'K-9' pipes. (20% payment to be released after hydraulic testing)

11 Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly valves and Sluice valves including cost of all labour jointing material, including nut bolts and giving satisfactory hydraulic testing etc.complete. (Rate for all class of valves.)

Qty.

3

Rate

4

Unit

5

Amount

6

1833.00

400.00 Cum

733,200.00

611.00

525.00 Cum

320,775.00

916.50

40.00 Cum

36,660.00

6110.00

244.00 RMT

1,490,840.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

91

Item No. 1

Description of Items

2 400 mm dia. Sluice Valve 100 mm dia. Scour Valve (20% payment to be released after hydraulic testing) Providing and fixing in position air valve shaft including providing and fixing GI Medium Class or 6 mm thick M.S. pipe shaft 2.70 M long over branch flange of air valve tee, providing PCC block of M-150 concrete, 150 mm thick around the air valve tee including encasing of vertical shaft in PCC M-150 as shown in type design together with providing and making flanged joints wherever required and fixing of air valve tee, etc. complete as per type design and as directed by Engineer-in-charge for following diameters of pipe lines (type design attached.) Size 200 to 400 mm-Murum hard strata Providing & laying insitu following grades of C.C. of trap/ granite/ quartzite/ gneiss metal for foundation & bedding / nall encasing of pipeline including dewatering, formwork, compacting & curring etc. complete.

Qty.

3 3 6

Rate

4 4475.00 1181.00

Unit

5 Nos Nos

Amount

6 13,425.00 7,086.00

12

12

4723.00

Nos

56,676.00

14

15

16

C.C. (1:2:4) in nalla encasing Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete. (No payment will be released till hydraulic testing) Providing and constructing B.B. masonry valve chamber with 15 cm thick 1:3:6 proportion PCC bedding, excluding excavation, B.B. masonry in C.M. 1:5 Proportion precast RCC frame and cover, etc. complete as directed by Engineer-incharge. Note: Wall thickness : 0.23 M for depth of 1.2 M and 0.35 M for balance depth exceeding 1.2 M ) Valve Chamber with Precast RCC.cover Size 1200x1200x1500 mm

0.00

3000.00

Cum

90,000.00

7246.74

35.00

Cum

253,636.00

9 Total Rs.

10141.00

Nos

91,269.00 32442321.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

92

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.10 : WATER TREATMENT PLANT 7.00 MLD CAPACITY

Item Description of Items No. 1 2 1 Designing (aesthetically), providing and constructing and commissiong Conventionl Water Treatment Plant consisting of all Civil, works including cost of Providing and applying Epoxy paint to inside surface of water retaining structures in contact with chlorine and providing anti - termite treatment to entire structure below Ground level, Mechanical and Electrical components of variours sub-works as given below : including necessary hydraculic testing, structural testing equipment testing, trial run for a period of 3 months, etc. complete as directed by Engineer-in-charge (turn-key job).

1) Aeration Fountain : Plan area not less than 0.625 square metre per MLD 2) Ventury Flume : With necessary devices, consisting of simple mechanicalindicator.( Pedestal type gauge) 3) Flash Mixer : Rapid mixing device, detention time 60 seconds to give velocity gradient 300 to 400 sec-1 vane mixer type confirming to I.S. 7090 of 1985. 4) Flocculator : Confirming to I.S. 7208 of 1974 (Type-C) with detention period of 30 minutes. 5) Clarifier : Horizontal flow circular tank, detention period 2-5 hours, overflow rate 30 cubic metre per square metre per day (to be specified), Weir loading not more than 300 cubic metre per metre per day, with mechanical sludge scraper conforming to I.S. No. 10313 1982.

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

93

Item No. 1

Description of Items

2 6) Rapid Sand Filters and Filter House Filter designed for filteration rate of 5,000 liters per square metre per hour, minimum 2 beds for plant upto 10 MLD, for larger plants as specified, filters to be located in filter house with roof slab, pipe gallery and platform minimum 5.5 metre in width. a) Filter Sand Effective size 0.45 to 0.70 mm, uniformity coefficient not more than 1.7, nor less than 1.3, depth of water over sand 0.75 M, free board 50 cm, gravel 0.45 M in depth, sand and gravel confirming to I.S. 849 (i)-77, back wash by air wash, stan dard appurtenances (to be specified), rate of flow controller, filler gauge,sand expansion gauge, etc. b)Wash Water Tank Capacity to be specified and suitable to supply water to wash 2 filter units at a time where the units are 4 or more.c)Wash Water Pumps Capacity to fill water tank in 1 hour with 100 % standby. d)Air Blowers : Capable of delivering 600 LMP per square metre of free air, of filter area at 0.4 kg/square cm at the underdrains (100% stand by). 7) Chemical House in Two Storeys a)Ground floor to accommodate 7 days alum requirement and sundry storage. b)First floor to accommodate alum and lime tanks. etc. c)Solution tanks : Minimum 3 tanks (one for preparation. second for dosing and third as standby), each tank capable of giving 8 hours maximum dose without interruption, minimum free board 0.30 M, trays for dissolving,level indicator, mechanical agitation devices, solution feed and drain lines, solution feed device (constant head device,strength of solution upto 10% only) conforming to I.S. 9222 part-I/1979. 8) Pure Water Sump and Pump House a) Capacity of sump One hour of designed flow. b) Pump House Pump house of required size over the sump or by the side. 9) Store House : Suitable for alum storage of three months requirement in mansoon with 10 % extra capacity for other sundry articles. 10) Vacuum feed type chlorinators - make to be approved by MJP. a) Confirming to I.S. 10533 - A Part-II 1983. b) Rate of withdrawal.

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

94

Item No. 1

Description of Items

2 c) Chlorinator equipment and container room to confirm to I.S. 10553 Part - I 1983. d) 100 % standby shall be provided. 11) By pass arrangements - C.I. or M.S. pipes. 12) Drainage arrangements- RCC pipes upto plot boundary. 13) Electrical installation. Both internal and external including entire plant area. 14) Laboratory equipment. As per requirement (to be specified during tendering.) 15) Sanitary blocks. Carpet area-15 square metre minimum upto 25 Mld and 25 square metre above 25 Mld. 16) Administrative block and internal road. To accommodate office room. chlorine room, laboratory room, panel board room, blower room etc. and WBM road to connect all units from main gate of plot. 17) Rates given below are inclusive of uplift pressure if any and dewatering during entire work. 18) These rates are applicable for seismic zones-2,3 and 19) All RCC structures shall be constructed in M 250. For 7.0 MLD Conventional W.T.P. Add additional cost of sump of 1.92 lakh lit capacity Note:Sump is proposed to be constructed for 11.50 MLD WTP i.e. 4.75 lakh Liter Sump capacity for 135 lpcd =4.75 lakh lit Sump capacity for 70 lpcd = 2.82 lakh lit. Cost is added for 1.92 lakh lit capacity sump. Note : The components like Areation Fountain, Ventury Flume, flow measuring equipment, wash water tank should be initially designed and initially constructed by considering 11.5 MLD WTP for easy future expansion

Qty.

3

Rate

4

Unit

5

Amount

6

LS LS

MLD

15,096,000.00 810,051.00

Total Rs.

15,906,051.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

95

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.11 : PURE WATER PUMPING MACHINARY

Item Description of Items No. 1 2 1 Providing, erecting, commissioning and giving test of Vertical turbine pump set, water lubricated, discharging 78.66 lps at 57 m head, operating at 1500 rpm syn speed as per datailed specs. As per quotation received (As per approved makes of MJP) 2 Providing, erecting, jointing, commissioning and giving test of Sluice valve, 200 mm dia, PN 1.0, CI, DF, manually operated as per detailed specs. MJP civil CSR 09-10, Item No. 2-A-vii, for 2 pumps and 1 for 2nd stage pump. (As per approved makes of MJP) 3 Providing, erecting, jointing,commissioning and giving test of Non-return valve, 200 mm dia, PN 1.0, CI, DF as per detailed specs. 2 for pumps and 1 for 2nd stage pump. (As per approved makes of MJP) 4 Providing, erecting, jointing and commissioning 80 mm dia, PN 1.6 rating Kinetic double orifice Air valve for each pump as per detailed specifications. (As per approved makes of MJP)

5 Providing, erecting, commissioning and giving test of fabricated MS flanged Pipes and specials for individual and common manifolds Providing, erecting, commissioning and giving test of HOT crane, 5 MT, 8 m span, with 40x40mm square bar, 25 m. (As per approved makes of MJP) Providing, erecting, commissioning and giving test of HT sub-station to receive electric power from MSEDCL, civil work of meter room, chain link fencing, gates, getting approval of Electrical Inspector as per analysis and speciofications. (As per approved makes of MJP) Providing, erecting, commissioning and giving test of Power transformer, 200 kVA, 11 kV/0.433 kV, (As per approved makes of MJP)

Qty.

3 2

Rate

4 418000

Unit

5 Each

Amount

6 836,000.00

2

20492

Each

40,984.00

3

23072

Each

69,216.00

2

14457

Each

28,914.00

1000

62

kg

62,000.00

6

1

270498

Each

270,498.00

7

1

187700

Each

187,700.00

8

1

318175

Each

318,175.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

96

Item Description of Items No. 1 2 9 Providing, erecting, commissioning and giving test of Vertical hollow shaft sqirrel cage induction motor, 415 V, 1500 rpm syn suitable for pump at item 1 above and not less than 90 HP, and as per detailed specs. (As per approved makes of MJP) 10 Providing, erecting, commissioning and giving test of fully automatic, assembled, air break auto tranformer starter suitable for motor at item No. 8 above, and of rating not less than 90 HP, (As per approved makes of MJP) 11 Providing, erecting, commissioning and giving test of LT panel comprising of incomer and outgoing MCCBs, capacitors, bus-bars, indicating instruments etc as per analysis attached (As per approved makes of MJP) 12 Providing, laying, electrically connecting, commissioning and giving test of 1.1 kV grade, alluminium conductor, armoured PVC/XLPE cable with crimping lugs and glands as follows (As per approved makes of MJP) 12.a 3.5 core, 185 sq.mm to be laid from transformers to LT panel in single run, 12.b 3 core, 70 sq.mm to be laid from LT panel to starters to motors in single run, 12.c 3 core, 16 sq.mm for capacitors, 13 Providing, commissioning and giving test of Earthing arrangement for HT and LT systems, 14 Providing, erecting, commissioning and giving test of HT metering cubicle for 11 kV system, (As per approved makes of MJP)

15 Providing, laying, electrically connecting, commissioning and giving test of 11 kV grade, alluminium conductor, armoured XLPE cable, 3 core, 70 sq.mm from kiosk to sub-station incomer AB switch (As per approved makes of MJP) Providing erecting Out door 11 kV termination kit for above cable. Giving satisfactory test and trial of all equipments installed, including skilled and unskilled man power, operation and maintenance for 3 months after commissioning as per detailed specifications.

Qty.

3 2

Rate

4 374574

Unit

5 Each

Amount

6 749,148.00

2

175125

Each

350,250.00

1

224000

Each

224,000.00

0.00

100 50 30 14

1420 562 232 1700

m m m Each

142,000.00 28,100.00 6,960.00 23,800.00 0.00

50

1302

m

65,100.00

16 17

4 3

14329 36000

Each Month

57,316.00 108,000.00

Total Rs.

3,568,161.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

97

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.12 : PURE WATER RISING MAIN (400 MM DIA D.I.-K9 L=1800M) Item No. 1 1

Description of Items

2 Providing D.I. pipes of following grades with internal cement mortar lining and including all taxes, insurance, railway freight, unloading from railway wagon, loading into truck, transport to departmental stores/site, unloading, stacking, etc. complete. (IS:8329-2000 Latest Version) . 400mm dia D.I.'K-9' pipes. (80% payment on supply, 10% after jointing and 10% after hydraulic testing) Providing and supplying ISI standard D.I. specials & fittings with sealing rubber gasket of S.B.R.,complete with Cast iron follower gland and M.S. nut & bolts coated or otherwise protected from rusting and suitable for D.I. pipes including cost of all labours and materials and transportation to stores / site, loading , unloading including all taxes , etc. complete.(5% of item No.1) Providing double flanged sluice valve confirming IS-2906/14846 including worn gear arrangements as per test pressure stainless steel spindle, caps including all taxes transportation etc complete. (Sluice Valves PN-1 Without Bypass arrangement) 400 mm dia. Sluice Valve 100 mm dia. Scour Valve (80% payment on supply, 10% after jointing and 10% after hydraulic testing)

Qty.

3

Rate

4

Unit

5

Amount

6

1800.00

4325.00

RMT

7,785,000.00

2

1

389250.00 Lump -sum

389,250.00

3

1 2

72832.00 7034.00

Nos Nos

72,832.00 14,068.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

98

Item No. 1 4

Description of Items

2 Providing and supplying Kinetic Double Orifice type Air Valves as per MJP's standard specifications having small orifice elastic ball resting on a gun metal orifice nipple, large orifice vulcanite ball seating on moulded seat ring,with built-in Kinetic features, isolatintg sluice valve mounted in horizontal position and operated by wheel gearing, inlet face and drilled, including all taxes (Central and local), insurance, third party inspection charges, loading, unloding, transportation upto departmental stores / site, etc. complete. 100 mm PN-1.60 (80% payment on supply, 10% after jointing and 10% after hydraulic testing)

Qty.

3

Rate

4

Unit

5

Amount

6

4

19083.00

Nos

76,332.00

5

Excavation for foundation / pipe trenches in earth, soils of all types, sand, gravel and soft murum, including removing the excavated material upto a distance of 50 metres and lifts as below, stacking and spreading as directed, manual dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. Excavation for foundation / pipe trenches in hard murum including removing the excavated material upto a distace of 50 M and lifts as below, stacking and spreading as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. Excavation for foundation / pipe trenches by blasting in soft rock and old cement and lime masonry foundition asphalt road including removing the excavated material upto a distance of 50 M beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50m. 540.00 81.60 Cum 44,064.00

6

540.00

96.90

Cum

52,326.00

7

630.00

306.00

Cum

192,780.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

99

Item No. 1 8

Description of Items

2 Excavation for foundation / pipe trenches in hard rock and concrete road by chiselling, wedging, line drilling, by mechanical means or by all means other than blasting including trimming and levelling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m. Excavation for foundation / pipe trenches in hard rock and concrete road by controlled blasting wedging, line drilling, by mechanical means or by all means including trimming and levelling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m. Filling in plinth and floors murum bedding in trenches with approved murum from excavated materials from foundation 15cm to 20cm layers including watering and compaction complete.

Qty.

3

Rate

4

Unit

5

Amount

6

630.00

535.50

Cum

337,365.00

9

540.00

408.00

Cum

220,320.00

10

11

Murum bedding from excavated materials 270.00 Lowering laying and jointing with SBR ruber gaskets D.I. S/S pipes of various classes with DI / MS specials of following diameter in proper position, grade and alignment as directed by Engineer-in-charge including conveyance of material from stores to site of work, including cost of jointing materials and rubber rings labour, giving hydraulic testing etc. complete. 400mm dia D.I.'K-9' pipes. 1800.00 (20% payment to be released after hydraulic testing) Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly valves and Sluice valves including cost of all labour jointing material, including nut bolts and giving satisfactory hydraulic testing etc.complete. (Rate for all class of valves.) 400 mm dia. Sluice Valve 100 mm dia. Scour Valve (20% payment to be released after hydraulic testing) 1 2

40.80

Cum

11,016.00

248.88

RMT

447,984.00

12

4564.50 1204.62

Nos Nos

4,565.00 2,409.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

100

Item No. 1 13

Description of Items

2 Providing and fixing in position air valve shaft including providing and fixing GI Medium Class or 6 mm thick M.S. pipe shaft 2.70 M long over branch flange of air valve tee, providing PCC block of M150 concrete, 150 mm thick around the air valve tee including encasing of vertical shaft in PCC M-150 as shown in type design together with providing and making flanged joints wherever required and fixing of air valve tee, etc. complete as per type design and as directed by Engineer-in-charge for following diameters of pipe lines (type design attached.) Size 200 to 400 mm-Murum hard strata Providing & laying insitu following grades of C.C. of trap/ granite/ quartzite/ gneiss metal for foundation & bedding / nall encasing of pipeline including dewatering, formwork, compacting & curring etc. complete. C.C. (1:2:4) in nalla encasing Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete. (No payment will be released till hydraulic testing) Providing and constructing B.B. masonry valve chamber with 15 cm thick 1:3:6 proportion PCC bedding, excluding excavation, B.B. masonry in C.M. 1:5 Proportion precast RCC frame and cover, etc. complete as directed by Engineer-in-charge. Note: Wall thickness : 0.23 M for depth of 1.2 M and 0.35 M for balance depth exceeding 1.2 M ) Valve Chamber with Precast RCC cover Size 1200x1200x1800 mm Size 1500x1500x1500 mm

Qty.

3

Rate

4

Unit

5

Amount

6

4

4817.46

Nos

19,270.00

14

15

30.00 2173.80

3060.00 35.70

Cum Cum

91,800.00 77,605.00

16

1 2 Total Rs.

11461.74 6886.00

Nos Nos

11,462.00 13,772.00 9,864,220.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

101

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.13 : RCC ESR ON WARD10 OF CAPACITY 8.10 LAKH LIT, STAGING HT=14M

Item Description of Items No. 1 2 1 Designing (aesthetically), and constructing RCC elevated service reservoirs of following capacity with RCC staging consisting of columns, internal and external bracings spaced vertically not more than 4.5 meters centre to centre for ESR having Capacity upto 500 Cum. and not more than 6 m c/c for ESRs having capacity above 500 cum including excavation in all types of strata, foundation concrete, cement plaster with water proofing compound to the inside face of the container including refilling disposing of the surplus stuff within a lead of 50 meters, all labour and material charges including lowering, laying, erecting, hoisting and jointing of pipe assembly of inlet, outlet, washout, overflow and bypass arrangements as per departmental design, providing and fixing accessories such as M.S. ladder, C. I. manhole frame and covers water level indicatiors, lightening conductor, G. I. pipe railing around walk way and top slab, providing spiral staire case from ground level to roof level,M.S.grill gate of 2 mtr.height with locking arrangement of approved design.

B.B. masonry chambers for all valves, ventilating shafts, providing and applying three coats of cement paint to the structure including roof slab epoxy painting to internal surface & anti termite treatment for underground parts of the structure. and giving satisfactory water tightness test as per I.S. code, The job to include painting the name of the scheme and other details on the reservoir as per the directions of Engineer-in-charge. 1. The design of the structure be in accordance with relevant ( I.S. 3370 - 1965 or revised.)2. The design shall satisfy the stipulations as per IS 1893 -1984 and I.S. 13920 / 1993 for seismic force and I. S.11682/1985 for R.C.C. staging of overhead tanks.3. For design having more than 6 columns, provision of in ternal bracing is obligatory.External bracing is also obligatary.4. The entire structure shall be in M-250 mix only.

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

102

Item No. 1

Description of Items

2 5. Plain round mild steel bars grade - I confirming to I.S. 432 part-I or high yield strength deformed bars confirming to I.S. 1786 or I. S. 1139 shall be used, grade-II mild steel bars will not be allowed. 6. Irrespective of the type of foundation proposed inthe design, one set of bracing be provided at the ground level. 7) These rates include providing M.S. ladder for E.S.R's upto 2lakh litres capacity and providing spiral staircase for E.S.R. above 2 lakh litres capacity. 8) Stagging shall have to be designed with stresses of M-200 for ESR. However all RCC construction should be done in M-250 9) These rates are including the cost of uplift pressure if any and entire dewatering during execution. In case of water logging area where water is struch at shallow depth extra provision of dewatering shall be made as per site condition. 10) All conditions given in the Member Secretary's Circular No.MJP / TS-I / 350 / 1668 dt. 2-8-97 and MJP / S-1/350/2127 dt. 13-7-99 shall be strictly followed and additional cost, if any, due to these conditions is included in the rates mentioned below. 11) 75% part rate shall be payable for reinforcement cocrete and plastering items of containers of E.S.R. till satisfactory hydraulic testing for water tightness in given; and till that work shall be treated as incomplete. 12) The rates indicated in the table are excluding the cost of pipes, specials and valves required for inlet, outlet, washout,overflow and by-pass arrangement. The scope of work, howerver and includes cost of erecting, laying and jointing of pipes and valves including cost of jointing materials upto 5 M beyond outer face of outermost column.

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

103

Item No. 1

Description of Items

2 13) For ESR upto 500 cum capacity C.I. Double flanged pipe upto 300 mm dia shall be provided and C.I. specials shall be used. For ESR above 500 cum capacity C.I. /M.S. pipe assembly with minimum 8 m.m. thick ness up to 500 mm dia. and minimum 10 mm. thickness above 500 mm.dia can be used with proper anti-corro sive epoxy teratment from inside and outside. 14) Below mentioned rates are for foundations, with individual footing with bearing capacity of 20 tonnes per square metre. For raft foundations, these rates shall be increased by.7.5% Where safe bearing capacity (SBC) is 5 M.T. per sqm and by 5% where SBC is more than 5 MT/ sqm and upto 10 MT /Sqm. This % of 5% or 7.5 % is applicable for estimation of amount of L.S. item of ESR. For Extra Item due to change from individual foundation to raft, actual increase in concrete and steel be paid as per relevent DSR Item. 15. The rate shall be increased by 30% for bearing piles upto depth of 10 m & for further increased in depth by 5 M each, it shall be increased by another 10%. These rates are applicable where raft is not feasible for pile foundations sulphate resistant cement shall only be used. Single pile for the column is not permitted Group of piles shall be designed with pile cap for each column of ESR. 16. The rates are applicable for staging height of 12 M. These rates shall be increased or decreased for per metre variation in this staging height as below. 12 to 16 M staging - 2% per metre 16 to 20 M staging - 3% per metre 20 M and above - 4% per metre For 17 M Staging height percentage calculation will be like below. 12 to 16 M --4 X 2 = 8 % 16 X 17 M --- 1 X 3 = 3 % Total = 11 % For 21 M Staging height percentage calculation will be like below. 12 to 16 M --- 4 X 2 = 8 % 16 X 20 M --- 4 X 3 = 12 % 20 X 21 M --- 1 X 4 = 4 % Total = 24 %

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

104

Item No. 1

Description of Items

2 17. Following rates are for seismic zone-III For zone-IV, these rates shall be increased by 5% and for zone - II, these rates shall be decreased by 5%. Concerned Executive Engineer shall confirm the seismic zone for the scheme from seismic zones plan before estimation and adopt appropriate rates as per actual seismic zones. (Seis mic maps attached in this C.S.R R.C.C. E.S.R. 8.10 lakh liters & staging height 14m Providing and supplying ISI mark C.I. double flanged pipes of following class and diameter including all taxes (Central and local) insurance, railway freight, unloading from railway wagon, loading into trucks, transport to departmental stores / site, unloading, stacking etc. complete. (IS-1536 / 2001) ( Suitable for Tyton / Piglead joints ) Dia of Pipe : 350.00 mm , Clas A Providing double flanged sluice valve confirming IS-2906/14846 including worn gear arrangements as per test pressure stainless steel spindle, caps including all taxes transportation etc complete. (PN-1. With Bypass arrangement)) Dia of Pipe : 350.00 mm , Clasa A Dia of Pipe : 200mm(scour valve) Providing and supplying ISI standard C.I flanged /S&S specials including all taxes (central local), railway freight, insurance, unloading from railway wagon, loading in to truck transport to departmental stores/site, unloading stacking etc. complete. a) D/F specials (350 to 600 mm)

Qty.

3

Rate

4

Unit

5

Amount

6

1

2318108

No.

2318108

2

70

7819

rmt

547,330.00

3

2 1

60327 18406

Nos Nos

120,654.00 18,406.00

4

500 Total Rs.

64.00

Kg

32,000.00 3,036,498.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

105

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.14 : RCC GSR ON HILLOCK OF CAPACITY 20.50 LAKH LIT

Item Description of Items No. 1 2 1 Designing (aesthetically), and constructing RCC ground service reservoirs in M-250 mix. of required capacity including excavation in all types of strata, foundation concrete, container walls, bottom slab top RCC roof slab / or dome, 20 mm thick cement plaster with water proofing compound in CM 1:3 proportion. to inside face of the container, including epoxy paint from inside including refilling and disposing of surplus stuff within lead of 50 M, all labour and material charges, for laying and jointing of pipe assembly for inlet, outlet washout, over flow and bye-pass arrangement consisting of C.I./ M.S. D/F. pipes, specials and valves of given diameters, providing and fixing accessories such as M.S. ladderin side and outside, C.I. Manhole frame and cover, water top slab, B.B. masonry chamber for all valves, ventilating shafts, including giving satisfactory hydraulic test and water tightness test as per IS code and providing three coat of cement paints to all expose surface of structure including roof surface etc. complete as per design data, criteria, obligatory requirements and detailed specifications. Anti terminite treatment shall be given for underground portion of the structure. Note : 1. The designing shall be in accordance with various relevant I.S. specifications (I.S. 456/2000, I.S. 875 1987, I.S.3370-1965 or revised.) 2. Only M.S. bars grade I confirming to I.S. 432 partIor high yield strength deformed bars confirming to I.S.1786 or I.S.1139 shall be used grade II M.S. bars shall not be used. 3. Entire structure shall be in M - 250 only. 4. The scope of pipe assembly work shall be up to 5metre beyond outside face of the wall, cost of pipes valves and specials is not included in the rate but labour cost for laying and jointing is included.

Qty.

3

Rate

4

Unit

5

Amount

6

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

106

Item No. 1

Description of Items

2 5. The G.S.R. / Sump above 15 lakh litres capacity shallbe in two compartment. 6. The job includes designing the structure for uplift pressure and dewatering if required using entire executionand disposal of surplus excavated stuff with in lead of50 metres as directed by Engineer-in-charge. If up liftsconsidered in design then these rate shall be increasedby 7.5%. 7. G.S.R. outlets shall be with bell mouth of approved parterninbottom slab and cost of designing bell mouth is included in the rate. Sump well includes cost of suctionpit required at bottom. 8. For pipe diameters upto 300 mm only CI pipes and CI specials shall be used. For pipe diameters above 300mm,M.S. pipes and specials minimum 10 mm thick shall be used with proper anticorrosive epoxy treatment from in sideand outside. 9. Cost of pump house is not included in these rates. 10. Above rates are applicable for seismic zones2,3 and 4. 11. 75% part rate shall be payable for reinforcement,concreteand plastering items of all types of G.S.R.s. and sumpstill satisfactory hydraulic testing for water tightness testis given and till that work shall be treated as incomplete

Qty.

3

Rate

4

Unit

5

Amount

6

2

R.C.C. G.S.R. 20.50 lakh liters Providing double flanged sluice valve confirming IS-2906/14846 including worn gear arrangements as per test pressure stainless steel spindle, caps including all taxes transportation etc complete. (PN-1) 400.00 mm Without Bypass arrangement 350.00 mm Without Bypass arrangement 250mm Without Bypass arrangement

1

3,661,563

No.

3,661,563.00

1 1 1

72832.00 60327.00 28574.00

Nos Nos Nos

72,832.00 60,327.00 28,574.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

107

Item Description of Items No. 1 2 3 Manufacturing, providing and supplying spirally welded / ERW/ SAW / fabricated M. S. pipes (Commercial Quality) including procurements of plates, gas cutting to required size rolling, tack welding assembling in suitable lengths to form pipes, welding on automatic welding machine and forming `V' edge on both ends of pipes including all taxes (Central and local), railway freight, insurance unloading from railway wagon, loading into truck, transport to stores / site, unloading, stacking, etc, complete as per IS - 3589 and IS5504 as applicable as per specifications (No negative tolerance in thickness is permissible).10mm thick 400.00 mm 4 Providing and applaying one coat of zinc rich epoxy primer to the internal surface of pipeline at site

5 Providing and applaying primer and one coat of red oxide of iron paint, externaly, including cleaning the surface with of the pipe with steel scrappers, with wire brushes, and metal cleaning solution, etc.

Qty.

3

Rate

4

Unit

5

Amount

6

10

5572.00

rmt

55,720.00

12.56

57.12

sqm

717.00

Say Rs.

12.56 Total Rs.

52.02

sqm

653.00

3,880,386.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

108

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.15 : GRAVITY MAINS GM1. GM2 AND GM3

QTY

DESCRIPTION OF THE ITEM

Item 1:Providing D.I. pipes of following grades with internal cement mortar lining and including all taxes, insurance, railway freight, unloading from railway wagon, loading into truck, transport to departmental stores/site, unloading, stacking, etc. complete. (IS:8329-2000 Latest Version) .

RATE

UNIT

AMOUNT

950 440 400 1400 800

100mm 200mm 250mm 350mm 400mm

dia D.I. K-7 pipes. GM3 dia D.I. K-7 pipes. GM1&GM2 dia D.I. K-7 pipes. GM2 dia D.I. K-7 pipes. GM3 dia D.I. K-7 pipes. GM3

898 1550 1897 2966 3531

RMT RMT RMT RMT RMT

853100 682000 758800 4152400 2824800

(As per Corregendum ) Item 2: Providing and supplying ISI standard D.I. specials & fittings with sealing rubber gasket of S.B.R.,complete with Cast iron follower gland and M.S. nut & bolts coated or otherwise protected from rusting and suitable for D.I. pipes including cost of all labours and materials and transportation to stores / site, loading , unloading including all taxes , etc. complete.(5% of item No.1) (MJP CSR 2009-10 /P-58/I-3) 5% of item 1 Item 3:Providing double flanged sluice valve confirming IS-2906/14846 including worn gear arrangements as per test pressure stainless steel spindle, caps including all taxes transportation etc complete. (Sluice Valves PN-1 Without Bypass arrangement) 1 1 1 1 1 100mm dia 200mm dia 250mm dia 350mm dia 400mm dia (MJP CSR , 2009-10 /P-146/I-2b) 7034 18406 28574 60327 72832 Nos Nos Nos Nos Nos 463,555.00

7,034.00 18,406.00 28,574.00 60,327.00 72,832.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

109

QTY

DESCRIPTION OF THE ITEM

ITEM NO.4:Providing and supplying Kinetic Double Orifice type Air Valves as per MJP's standard specifications having small orifice elastic ball resting on a gun metal orifice nipple, large orifice vulcanite ball seating on moulded seat ring,with built-in Kinetic features, isolatintg sluice valve mounted in horizontal position and operated by wheel gearing, inlet face and drilled, including all taxes (Central and local), insurance, third party inspection charges, loading, unloding, transportation upto departmental stores / site, etc. complete. 50mm dia 100mm dia

RATE

UNIT

AMOUNT

1 6

5253 8853

Nos Nos

5,253.00 53,118.00

(MJP CSR , 2009-10 /P-146/I-2b) Item 5 :Excavation for foundation / pipe trenches in earth, soils of all types, sand, gravel and soft murum, including removing the excavated material upto a distance of 50 metres and lifts as below, stacking and spreading as directed, manual dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. 1064.730 Lift 0.00 to 1.50 m. (MJP CSR 2009-10 /P-35/I-1) Item 6 :Excavation for foundation / pipe trenches in hard murum including removing the excavated material upto a distace of 50 M and lifts as below, stacking and spreading as directed by Engineer-incharge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. 1524.680 Lift 0.00 to 1.50 m. (MJP CSR 2009-10 /P-35/I-2) Item 7 :Excavation for foundation / pipe trenches in soft rock and old cement and lime masonry foundition asphalt road by all means including removing the excavated material upto a distance of 50 M beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. 1064.730 Lift 0.00 to 1.50 m. (MJP CSR 2009-10 /P-35/I-5)

81.60

Cum

86,882.00

96.90

Cum

147,741.00

306.00

Cum

325,807.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

110

QTY

DESCRIPTION OF THE ITEM

Item 8 :Excavation for foundation / pipe trenches in hard rock and concrete road by chiselling, wedging, line drilling, by mechanical means or by all means other than blasting including trimming and levelling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m.

RATE

UNIT

AMOUNT

1064.73

535.50

Cum

570,163.00

530.18

(MJP CSR 2009-10 /P-35/I-7) Item 9 :Filling in plinth and floors murum bedding in trenches with approved murum from excavated materials from foundation 15cm to 20cm layers including watering and compaction ETC. complete. (MJP CSR 2009-10 /P-38/I-16) Item 10 :Lowering laying and jointing with SBR ruber gaskets D.I. S/S pipes of various classes with DI / MS specials of following diameter in proper position, grade and alignment as directed by Engineer-incharge including conveyance of material from stores to site of work, including cost of jointing materials and rubber rings labour, giving hydraulic testing etc. complete. 100mm dia D.I. K-7 pipes. GM3 200mm dia D.I. K-7 pipes. GM1&GM2 250mm dia D.I. K-7 pipes. GM2 350mm dia D.I. K-7 pipes. GM3 400mm dia D.I. K-7 pipes. GM3 (MJP CSR 2009-10 /P-56/I-2a) Item 11: Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly valves and Sluice valves including cost of all labour jointing material, including nut bolts and giving satisfactory hydraulic testing etc.complete. (Rate for all class of valves.)

40.80

Cum 21,631.00

950 440 400 1400 800

55.08 104.04 135.66 194.82 248.88

Rmt Rmt Rmt Rmt Rmt

52,326.00 45,778.00 54,264.00 272,748.00 199,104.00

1 1 1 1 1

100mm 200mm 250mm 350mm 400mm

dia dia dia dia dia

1204.62 2127.72 2867.22 3734.22 4564.50

Nos Nos Nos Nos Nos

1,205.00 2,128.00 2,867.00 3,734.00 4,565.00

(MJP CSR 2009-10 /P-151/I-4)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

111

QTY

DESCRIPTION OF THE ITEM

Item 12 : Providing and constructing B.B. masonry valve chamber with 15 cm thick 1:3:6 proportion PCC bedding, excluding excavation, B.B. masonry in C.M. 1:5 Proportion precast RCC frame and cover, etc. complete as directed by Engineer-in-charge.

RATE

UNIT

AMOUNT

3

Size 1.20x1.20x 1.20 m

9225.90

Nos

27,678.00

(MJP CSR 2009-10 /P-256/I-1) Item 13: Providing and fixing C.I.road box including loading, unloading and carting to site of work including all necessory excavation in all types of strata and fixing in murum packing etc completed. 2

b) 225 mm x 300 mm (40Kg)

2184.84

Nos

4,370.00

60.75

(MJP CSR 2009-10 /P-259/I-5) Item 14 : Providing & laying insitu following grades of C.C. of trap/ granite/ quartzite/ gneiss metal for foundation & bedding / nall encasing of pipeline including dewatering, formwork, compacting & curring etc. complete. C.C. (1:2:4) in nalla encasing

3060.00

cum

185,895.00

(MJP CSR 2009-10 /P-42/I-1) Item15: Refilling the trenches with available excavated stuff with soft material first over pipeline 4993.170 and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete. ITEM NO.16: Providing and fixing in position air valve shaft including providing and fixing GI Medium Class or 6 mm thick M.S. pipe shaft 2.70 M long over branch flange of air valve tee, providing PCC block of M-150 concrete, 150 mm thick around the air valve tee including encasing of vertical shaft in PCC M-150 as shown in type design together with providing and making flanged joints wherever required and fixing of air valve tee, etc. complete as per type design and as directed by Engineer-in-charge for following diameters of pipe lines (type design attached.) upto 150 mm 1 Size 200 TO 400 mm-Murum hard strata 6 MJP DSR-2009-10,Pg. 162, Item No.17 (ii) TOTAL B

35.70

cum 178,256.00

4111.62 4817.46

Nos Nos

4,112.00 28,905.00 12,200,358.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

112

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.16 : DISTRIBUTION NETWORK

Item Description of Items Qty. No. 1 2 3 1 Providing D.I. pipes of following grades with internal cement mortar lining and including all taxes, insurance, railway freight, unloading from railway wagon, loading into truck, transport to departmental stores/site, unloading, stacking, etc. complete.(IS:8329-2000 Latest Version) . 100mm dia D.I. K-9 pipes. 24855.00 150mm dia D.I. K-9 pipes. 8521.00 200mm dia D.I. K-9 pipes. 1622.00 250mm dia D.I. K-9 pipes. 1519.00 300mm dia D.I. K-9 pipes. 1089.00 350mm dia D.I. K-7 pipes. 882.00 (80% payment on supply, 10% after jointing and 10% after hydraulic testing)

2 Providing and supplying ISI standard D.I. specials & fittings with sealing rubber gasket of S.B.R.,complete with Cast iron follower gland and M.S. nut & bolts coated or otherwise protected from rusting and suitable for D.I. pipes including cost of all labours and materials and transportation to stores / site, loading , unloading including all taxes , etc. complete. Providing double flanged sluice valve confirming IS-2906/14846 including worn gear arrangements as per test pressure stainless steel spindle, caps including all taxes transportation etc complete. (Sluice & scour Valves PN-1 Without Bypass arrangement) 80 mm dia 100mm dia 150mm dia 200mm dia 250mm dia 300mm dia 350mm dia (80% payment on supply, 10% after jointing and 10% after hydraulic testing) 1

Rate

4

Unit

5

Amount

6

1041.00 1516.00 1855.00 2299.00 2935.00 2966.00

RMT RMT RMT RMT RMT RMT

25,874,055.00 12,917,836.00 3,008,810.00 3,492,181.00 3,196,215.00 2,616,012.00

5110511.00

LS

5,110,511.00

3

11 82 34 8 7 3 2

5145.00 7034.00 11372.00 18406.00 28574.00 36698.00 60327.00

Nos Nos Nos Nos Nos Nos Nos

56,595.00 576,788.00 386,648.00 147,248.00 200,018.00 110,094.00 120,654.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

113

Item Description of Items Qty. No. 1 2 3 4 Excavation for foundation / pipe trenches in earth, soils of all types, sand, gravel and soft murum, including removing the excavated material upto a distance of 50 metres and lifts as below, stacking and spreading as directed, manual dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. 7604.36 5 Excavation for foundation / pipe trenches in hard murum including removing the excavated material upto a distace of 50 M and lifts as below, stacking and spreading as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. 10966.79 6 Excavation for foundation / pipe trenches in soft rock and old cement and lime masonry foundation asphalt road by all means including removing the excavated material upto a distance of 50 M beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete. Lift 0.00 to 1.50 m. 7604.36 7 Excavation for foundation / pipe trenches in hard rock and concrete road by chiseling, wedging, line drilling, by mechanical means or by all means other than blasting including trimming and leveling the bed, removing the excavated material upto a distance of 50 metres beyond the area and lifts as below, stacking as directed by Engineer-in-charge, normal dewatering, excluding backfilling, etc. complete by all means. Lift 0.00 to 1.50m. 5876.94

8 Filling in plinth and floors murum bedding in trenches with approved murum from excavated materials from foundation 15cm to 20cm layers including watering and compaction etc. complete. 4427.98

Rate

4

Unit

5

Amount

6

81.60

Cum

620,516.00

96.90

Cum

1,062,682.00

306.00

Cum

2,326,934.00

535.50 40.80

Cum Cum

3,147,101.00 180,661.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

114

Item Description of Items No. 1 2 9 Lowering laying and jointing with SBR ruber gaskets D.I. S/S pipes of various classes with DI / MS specials of following diameter in proper position, grade and alignment as directed by Engineer-in-charge including conveyance of material from stores to site of work, including cost of jointing materials and rubber rings labour, giving hydraulic testing etc. complete. 100mm dia D.I. K-9 pipes. 150mm dia D.I. K-9 pipes. 200mm dia D.I. K-9 pipes. 250mm dia D.I. K-9 pipes. 300mm dia D.I. K-9 pipes. 350mm dia D.I. K-7 pipes. (20% payment to be released after hydraulic testing)

10 Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly valves and Sluice valves including cost of all labour jointing material, including nut bolts and giving satisfactory hydraulic testing etc.complete. (Rate for all class of valves.) 80 mm dia 100mm dia 150mm dia 200mm dia 250mm dia 300mm dia 350mm dia (20% payment to be released after hydraulic testing) Providing and constructing B.B. masonry valve chamber with 15 cm thick 1:3:6 proportion PCC bedding, excluding excavation, B.B. masonry in C.M. 1:5 Proportion precast RCC frame and cover, etc. complete as directed by Engineer-incharge. Size 1.20x1.20x 1.20 m Size 1.5x1.5x1.5 mm

Qty.

3

Rate

4

Unit

5

Amount

6

24855.00 8521.00 1622.00 1519.00 1089.00 882.00

55.08 76.50 104.04 135.66 164.22 194.82

RMT RMT RMT RMT RMT RMT

1,369,013.00 651,857.00 168,753.00 206,068.00 178,836.00 171,831.00

11 82 34 8 7 3 2

862.00 1205.00 2049.00 2128.00 2867.00 2970.00 3734.00

Nos Nos Nos Nos Nos Nos Nos

9,482.00 98,810.00 69,666.00 17,024.00 20,069.00 8,910.00 7,468.00

11

8 10

9225.90 12684.72

Nos Nos

73,807.00 126,847.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

115

Item Description of Items No. 1 2 12 Providing and fixing C.I.road box including loading, unloading and carting to site of work including all necessary excavation in all types of strata and fixing in murum packing etc completed.

13 a) 225 mm x 300 mm (40Kg) Providing & laying insitu following grades of C.C. of trap/ granite/ quartzite/ gneiss metal for foundation & bedding / nall encasing of pipeline including dewatering, formwork, compacting & curring etc. complete. C.C. (1:2:4) in nalla encasing Refilling the trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, surcharging, etc. complete. (No payment will be released till hydraulic testing)

Qty.

3

Rate

4

Unit

5

Amount

6

127.00

2184.84

Nos

277,475.00

14

418.16 26573.16

3060.00 35.70

cum cum

1,279,577.00 948,662.00

Total Rs.

70,835,714.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

116

AUGMENTATION TO BHOKAR WATER SUPPLY SCHEME TQ.BHOKAR DIST.NANDED. Schedule-B- Bill of Quantities SUB WORK NO.17: RUNNING THE SCHEME ON TRIAL BASIS

Item Description of Items No. 1 2 1 Commissioning, running and maintaining the scheme to quantities, rated capacity, including manning necessary personnel such as operator, valveman, etc. as per requirement of the scheme and who should also administer chemical does for a period of 3 months, including cost of all labour (as detailed below) as directed by Engineer incharge. a Electrcal Bill for three months b Chemical and other material for water purification

c d Raw water charges for 3 Months Test and Trial Run for 3 months (Establishment)

Qty.

3

Rate

4

Unit

5

Amount

6

LS LS LS LS Total Rs.

972,076.00 147,412.00 70,892.00 76,200.00 1,266,580.00

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

117

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme DATA SHEET FOR W.T.P. (CONVENTIONAL) I) Aeration Fountain a) b) c) II) Partial flume a) III) Flash Mixer a) IV) Designed flow m3/hour Clariflocculator a) b) V) Filters a) b) VI) VII) a) Designed flow m3/hour Inlet shaft dia. Designed flow m3/hour No. of filter beds Capacity Nos. m3 Wash Water Tank Wash Water Pumps a) Discharge liters/hour VIII) Chlorinator a) b) IX) TCL Tank a) b) tanks X) a) b) XI) Pump house a) Floor area m2 No. of units Total rated capacity for all Nos. mld Type of chlorinator Rated discharge mld 7.00 mm mld or 7.00 mld or 7.00 mld or Designed flow m /hour

3

118

Designed flow m3/hour Lip of Aeration Fountain Inlet of fountain

7.00 390.00

mld or m mm

7.00

mld or

Pure Water Sump Capacity Type liters

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ANNEXURE `A' ITEMWISE DETAILED SPECIFICATION General

119

Following specifications are in amplification OR in addition to the specification for the respective items given in P.W.D. Hand Book Volume I and II (Later Edition), Red Book of Government of Maharashtra and shall strictly adhered to. Relevant ISS shall also be referred. Alignment Alignment and line out for the work is to be given by the M.C. 's officials and the work shall be carried out as per the M.C. 's line out and alignment for which Contractor has to provide at his cost all materials such as sight-rails, honing rods, pegnails, chumnam flags, etc. and also the required labour for line outs. The cost of constructing pillars, platforms for temporary benchmarks is also to be borne by the Contractor. IDS 1 Excavation in Soft Materials and Hard Materials The classification for all excavation met with shall be in two categories only, as under: Soft Materials Soft material shall include all types of earthy or sandy materials, soils of all types, clay, soft, average hard murum i. e. all kinds of disintegrated rock, shingles, clay, sand, made-up soils, bricks, bats and isolated boulders upto the size of 0.1 cum. The excavation macadam bound surfaces shall also be classified in soft materials. Hard Materials Hard materials will include boulders of size bigger than 0.1 cum, all types of rock, soft and hard, which can be best removed by blasting. Blasting will not be permitted in inhabited localities or in vicinity of properties, where damage to human life and property will be involved in the opinion of the Engineer in charge and in that case work will have to be done by chiseling and the like methods in the same tendered rates. By the term "SOFT ROCK" is meant rock in masses but of a softer variety, crystalling in structure, which is otherwise like hard rock. It only indicates the degree of softness, but will not include the disintegrated masses of rock, which generally have fractures or cleavages. Soft rock can be removed by a pick but mass removal, blasting has to be done. On hard rock a crow bar or a pick will only rebound removing but in significant quantity. The excavation in asphalt or concrete shall be classified as hard materials. 2) For pipe line trenches the classification for excavation met with shall be in one category only and is as under: Under this item the excavation shall be carried out in earth, all types of soils, soft and hard murum, boulders, W.B.M. road and concrete road, old cement and lime masonry foundation, soft rock and hard rock by blasting wherever possible by chiseling by wedging, by line drilling by mechanical means. The items include cost of all materials and labour together with removing of the excavated material upto a distance of 50 m beyond the excavated boundary as directed. The excavated hard rock shall be stacked in measurable heaps as directed. The item also includes cost of normal dewatering i.e. dewatering without employing pump sets i.e. dewatering done by bailing out of water manually.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

120

The excavation shall be taken down to such depths as shown in drawing and/or as directed and shall be done in extra sections shown in drawings and stipulated in specifications elsewhere herein. Extra excavation done over and above specified for whatever reasons shall not be paid for. The bottom of the foundation shall be perfectly leveled before concrete or masonry is put in and shall be watered and thoroughly rammed. No filling will be allowed for bringing the foundation pit to level. The excavation shall be taken down to such depths as shown in drawings and /or as directed and shall be done in extra sections shown in drawings and stipulated in specifications elsewhere herein. Extra excavation done over and above specified for whatever reasons shall not be paid for. The bottom of the foundation shall be perfectly leveled before concrete or masonry is put in and shall be watered and thoroughly rammed. No filling will be allowed for bringing the foundation pit to proper level. The excavation may go down deeper by 3.0 M more to reach proper foundations and arriving certain levels, etc. for which necessary payment shall be made. The section of excavation, however, may be increased correspondingly, if necessary, as directed by the Engineer in charge, for such extra depths and such increased section as directed by Engineer in charge, shall be admissible for payment at respective tendered rates. All foundation pits shall be filled on the sides of masonry and concrete by the excavated stuff to the original surface of ground as required, watered and rammed, in 20 cms. thick layers and the tendered rate includes this operation. Excavated material from foundations shall not be placed nearer than 1.2 M from the edges of excavation. In case of excavation in town and inhabited places, it shall be strongly fenced and lighted during night by red lights in charge of watchman at Contractor's cost. Material should not be dumped on road. Unless otherwise specific lifts and leads are mentioned in the tendered item, the tendered rate shall be for all lifts and leads involved in the work. The Contractor shall provide shoring and strutting of approved size and type for normal conditions wherever necessary for excavation in soft materials without extra cost unless otherwise provided for in separate tender item. Excavation carried out in excess of the width specified shall be at Contractor's own risk and shall not be measured. So also the excavation carried out in excess of the required depths shall be made good to the required level by either concrete or masonry of proportion as directed by the Engineer in charge without extra cost. The tendered rate for excavation items shall include lifting and removing the excavated materials for proper disposal in the vicinity as directed by the Engineer-in-charge. Nothing extra shall be paid for removal of masonry concrete structures or for removal of stumps or roots or trees met with during excavation and for filling of holes or hollow due to removal of roots, etc. or existing originally which shall be filled up by earth and will be rammed and leveled. The pay line allowed for excavation for wells in various strata shall be limited to the following H In soil In Soft murum In hard murum Contractor 1-1/2 : 2/3 1/2 : : V 1 1 1 No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme In rock 1/10 : 1

121

The excavation for well shall be carried out with the above side slopes only. The excavation done beyond their slopes is not admissible for payment. If the excavation is done with lesser slopes than mentioned above, the payment shall be restricted to the actually excavated slopes. If there is no separate item of dewatering in the tender, the Contractor's tendered rate shall include manual bailing, draining of the trench and the excavation shall be kept free from, water, while the work is in progress in a manner as may be directed by the Engineer in charge. When there is a tender item of dewatering then payment shall be admissible under dewatering required for all items in the tender from start till its completion. In either case the excavation item shall be dry as well as in wet condition, unless otherwise items exists for wet excavation. In case of pipe trenches, Engineer-in-charge may reduce the width of trench wherever the hard strata met with, if he feels adequate and just sufficient to lay the pipeline in order to reduce the hard quantity. In such cases the contractor will be paid in the actual. measurements. No extra cost will be paid for putting the pipe all along the trenches before laying in the trenches. Average width of excavation trenches that shall be admissible for payment for various diameters of pipelines (excepting PVC pipes ) shall be as under. No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Internal dia. of pipe 80 mm and below 100 mm 150 mm 200 mm 250 mm 300 mm 350 mm 400 mm 450 mm 500 mm 550 mm 600 mm 700 mm 750 mm More than 750 mm Width of excavation of trench 0.70 M 0.75 M 0.75 M 0.85 M 0.85 M 0.90 M 0.95 M 1.10 M 1.15 M 1.20 M 1.25 M 1.25 M 1.30 M 1.40 M O.D. + 0.60 M Nature of Strata In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material

In case of PVC pipes following trench widths shall be adopted. No. 1. 2. 3. 4. 5. 6. 7. 8. 9. Internal dia. of pipe Upto 110 mm 140 mm 160 mm 180 mm 200 mm 225 mm 250 mm 280 mm 315 mm Width of excavation of trench 0.70 M 0.75 M 0.75 M 0.80 M 0.80 M 0.80 M 0.85 M 0.90 M 0.90 M Nature of Strata In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material In soft and hard material

Any width excavated more than above shall not be measured and paid for. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

122

The Contractor shall carry out extra excavation for collar pits at joints wherever necessary and such extra collar pit excavation shall not be admissible for payment and will not be measured. During excavation and till the trenches are properly refilled, if any public or private water tap connections, telephone wires, cables, etc. are damaged, the Contractor shall reinstate them at his cost. The Contractor shall at his own cost give the satisfactory hydraulic testing which shall include all labour cost of water to feed and while testing, repairs required shall have to be carried out by the Contractor. No extra cost shall be paid. Filling Boulders The boulders shall be hand packed with murum blindage in 20 cm layers, making up of the stone to chips for all around the staining of the well. The width and height of the filling shall be as per the plans or as directed by the Engineer-in-charge. The boulders and stone-chips to the extent available from the excavation shall be made use of free of cost by the Contractor and the rest quantity shall have to be brought by the Contractor with all leads and lifts for which no claim whatsoever shall be entertained. The measurements shall be in the meters units for the volume of the boulder filling done as measured on site. IDS 2ARefilling Trenches of Pipelines In no case the Contractor shall be allowed to refill the trenches in hard-excavated portion to be refilled by the boulders or the excavated stuff. This portion of trench shall be refilled by the soft murum or soft strata from excavated stuff from distant place. No extra cost shall be paid. After the pipelines are laid, jointed and tested, the refilling of trenches with excavated stuff shall be done approximately in 20 to 30 cms. higher than road or natural ground level, to allow for sinking afterwards. This refilling shall be done in 15 cms. thick layers, duly watering compacting, each layer. The 15 cms thick layer immediately in contact on or under pipe shall have no stones or chips, but only soil or soft murum selected from the excavated stuff after refilling. If it is sunk below the road level after some time till completion of work, the Contractor shall have to make it good at his cost. Before lowering of all pipes in trenches a layer of murum selected from excavated stuff shall be provided below pipeline for proper grading and to act as cushion, etc. No payment against refilling trenches shall be allowed until satisfactory hydraulic testing given. Refilling the Sides of Excavated Trenches of Jack well and Inspection Well The part of gap between the rubble filling of steining and the sides of excavation shall be refilled with the excavated stuff in layers of 20 cms thickness or as specified in the item wording, each layer shall be watered and rammed before the next layer is laid. The boulder filling behind the steining and the refilling shall be done simultaneously if required as directed by Engineer-in-charge. The balance quantity of excavated stuff shall be removed without any extra cost to the M.C. and it shall be disposed in such a manner that it does not form an obstruction of the natural water course or the passage to the pump house or to the adjacent land owner. The measurements shall be on the exact section measured upto the original ground level. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme All Machinery, Piping, Fuel and Lubricating Oils Electricity

123

Consumption charges, electrical connection charges, etc. required for pumping machinery and together with erecting, labour and running charges are to be borne by the Contractor under this item. The trenches shall be kept free of water during the entire construction and arrangements to dispose off the bailed out water shall be properly made by the Contractor. The job also includes removal of muddy-water, muddy paste, etc. If at any time during excavation till its completion, the work is filled with water or debris either due to untimely rains or due to underground springs being struck during excavation, slide slips or due to any cause whatsoever, the Contractor shall have to dewater and remove the debris, filled up material, etc. at his cost and no claims for extra rates shall be entertained. Similarly if the coffer dam is constructed for water diversion and is broken, washed away due to any reason, the Contractor shall make it good at his cost and no claim thereof shall be entertained. If the work is continued for more than one working season, or beyond the stipulated time limit, due to any reason whatsoever, the Contractor has to do all the dewatering and removing and trench clearing operation entirely at his cost. If any accident occurs during dewatering operations or due to coffer dam, etc. on account of any reason whatsoever, the Contractor shall be fully responsible for and shall have to shoulder all responsibility of compensation, etc. at his cost. In short, this item of dewatering covers the materials and labour cost for the entire period of excavation from start till completion of work together with all eventualities mentioned above. Till the work is completed, part rates as mentioned above shall be admissible against this item. This item is operative only when dewatering operations are actually required to be done during execution and the payment shall be on the basis of units as mentioned in Schedule 'B'. The dewatering job item is for various units as mentioned in tender item itself. The dewatering sets or other machinery, if taken on hire from the M.C. shall be returned by the Contractor after the work is completed in the same condition as was at the time of hire or otherwise the Contractor shall have to pay the repair charges and other charges if any for making it good. IDS 3 Providing and Fixing M.S. Ladders Ladder shall be manufactured as per the details provided in the tender drawing. All the material and labour for executing the item are to be provided by the Contractor at his cost. The ladder shall be properly fixed at site as directed and the bottom and top shall be properly embedded in masonry or concrete and duly bolted with nuts and bolts and other arrangement as directed. the bottom if resting on ground shall be embedded in 1:2:4 CC Block as directed at Contractor's cost. In order to have stiffness to the ladder cross supports or stiffeners at suitable intervals as directed shall be provided of suitable M.S. plates, duly embedded in walls and welded to ladder. The cost of these stiffeners is included in the tender rate. The ladder including stiffeners is to be painted with two coats of anticorrosive paint of approved shade. The rate includes bending, cutting, scrapping the M.S. plates, bars and welding and jointing thereof.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme IDS 4 Weep Holes

124

The tender item includes the cost of PVC or AC pipe, with screen together with the labour charges for fixing it in the staining. The diameter of the pipe should be 63 mm to 90 mm and it may be of any class. The pipe should pass through the width of steining completely and it should be placed at slight inclination so as to facilitate the flow of water as shown in the drawing. On the face of the pipe perforated cement concrete cover shall be fixed in cement mortar to serve as screen to prevent sand, other objectionable materials flowing into jack well and inspection well. IDS 5 M.S./C.I. Dapuri Type Steps The cost of providing and fixing M.S. Dapuri steps is included in tender item. The size of M.S. Bar should be at least 22mm diameter and steps manufactured out of these bars shall be properly fixed at 0.30 M c/c distance and at places and in manner as directed. Painting with two coats of anticorrosive black paint is also included in this item. IDS 6 Murum Bedding The murum to be used shall be of approved quality soft murum to be laid in 15 cms average thickness to the grade as directed by the Engineer-in-charge. The width admissible for payment shall be the same as per excavation trench width admissible under excavation item. The murum bedding shall be provided where there is black cotton soil or hard material below pipes or wherever directed and it shall be well rammed so as not to sink the pipeline. Extra excavation for murum bedding, wherever required as above shall be admissible for payment under excavation tender items. IDS 7 Providing, Lowering, Laying CI/DI Pipes with Tyton Joints Jointing the pipes with rubber gasket joints. (viz. Tyton Joints) The tender item covers providing, lowering, laying and jointing of CI/DI pipes as well as CI specials, pipe-pieces, etc., as per requirement and as directed by the SubDivisional Officer, by rubber gasket joint viz. Tyton Joints. The cost of conveyance of these materials from place of the site of work is also included in the tender item. Tender rate includes jointing CI/DI pipes with providing rubber gasket made out of S.B.R. and including laying and jointing CI specials with lead joints. The rubber gasket should be of the best quality conforming to IS : 12820. The approved makes orient rubber Nagpur for rubber gaskets for DI & CI pipes & National rubber co. for rubber gaskets for C.I. pipes. The method of Tyton joint (i.e. Rubber Gaskets) is as under: The rubber gasket is inserted in the socket of the pipe which is facilitated by applying a thin film of lubricating oil in such a way that the bulb of gasket is forward at the back and the socket and the groove in the gasket should be firmly fixed in the projecting ring inside the socket. The gasket has to be properly cleaned before inserting and it has to be ensured that it fits evenly around the whole circumference of the socket, removing any bulges which would prevent the entry of spigot end, then a thin film of lubricant should be applied to the gasket, inside & outside surfaces of entering spigot end for one inch after cleaning it. The pipe to be jointed should be supported centrally by the tackle, so that it is clear of trench bottom. The spigot of the pipe shall be carefully aligned and inserted in the adjoining socket, until it makes contact with the rubber gasket. The spigot shall be forced inside the socket past the gasket (which is Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

125

thus compressed) until the spigot reaches the end of the socket. The forceful insertion has to be achieved with crowbars, jacks, and lowers, etc. as per the details given in the literature of TISCO or any other suitable method as directed. However, before lowering of pipes in trenches a layer of murum bedding from the excavated stuff will have to be provided below the pipeline for proper grading and alignment and also to act as cushion and support to pipe. Certain breakage results during the course of laying and hydraulic testing. These breakages shall be to the account of contractor and no payment on this quantity is admissible. The final quantity payable under this item shall restricted to the total length laid and successfully Note Above procedure with relevant changes will be applicable for the item of lowering, laying and jointing of A.C., R.C.C. pipes also. Lead required for the work should be brought by the Contractor at his own cost and the quality of the same should be got approved. The quantity of lead required per joint shall be as detailed below. For 80 mm For 100 mm For 150 mm For 200 mm For 250 mm For 300 mm Hydraulic Test Suitable section as directed by the Engineer-in-charge shall be taken for such testing from time to time during progress of the work and satisfactory test given for that section. All testing apparatus, gauges, connections, etc. and water required for testing shall be arranged by the Contractor at his cost. The M.C. does not undertake any responsibility to supply water for testing, which the Contractor has to arrange from the municipality or otherwise by paying the required charges directly. The M.C. shall have the right to recover such charges from his bills if complaints are received that Contractor has not paid the charges thereof. If there is delay in testing, the Contractor shall refill the trenches for the time being and reopen them at time of testing at his own cost, failure of which shall entitle the M.C. to do the refilling and reopening of trenches at the risk and cost of the Contractor. If the trenches are filled due to any reason whatsoever before testing, the Contractor shall have to open them for testing at no extra cost. 1. Satisfactory hydraulic test shall be regarded when the section under test shall withstand the pressure as specified by the Engineer-in-charge for about 15 minutes without operating the test pump, the test pressure being maintained at the specified figures during that 15 minutes interval. The field test pressure shall be as per circular no. MJP/RCC/322, dated 31-121997. After laying & jointing any pipeline, the pipeline must be hydraulically tested to ensure that pipes & joints are strong enough to withstand the maximum pressure likely to be developed under working conditions. All pipe lines should be tested as per the following field test pressures. Field test pressure for MS/DI/PSC/PVC/CI/ concrete pipes. as para 6.4.4.2 of G.O.I. manual on water supply & treatment should not be less than the maximum of the following. No. of Corrections Chief Officer 1.81 kg 2.20 kg 3.47 kg 4.60 kg 6.74 kg 7.33 kg

For collar joints measurements will be allowed as two joints.

2.

Contractor

Tender Document for Bhokar Water Supply Scheme a) b) c) d) 1½ times the maximum sustained operating pressure. 1½ times the maximum static pressure in the pipe line.

126

Sum of maximum sustained operating pressure & the maximum surge pressure. Sum of maximum pipe line static pressure, subject to maximum surge pressure, subject to maximum equal to work test pressure for any pipe / fitting incorporated.

The field test pressure for A.C. pipe line should be 1.5 times the operating pressure i.e. 1.50 times the maximum static pressure. In case of gravity main the static head based is the difference between F.S.L. of source reservoir & lowest invest level of pipe in that section, i.e. the max static head in that section. The field test pressure should wherever possible be not less than 2/3 work test pressure appropriate to the class of pipe except in case of spun iron pipes & should be applied & maintained for at least four hours. If the visual inspection satisfies that there is no leakage the test can be passed. Where the field test pressure is less than 2/3 the work test pressure, the period of test should be increased to at least 24 hours. The test pressure shall be gradually raised at the rate of 1 Kg/cm2/min. If the pressure measurements are not made of the lowest point of section an allowance should be made for the differences in static head between the lowest point & the point of measurement to ensure that the maximum pressure is not exceeded at the lowest point. If the drop in pressure occurs; the quantity of water added in order to re-establish the test pressure should be carefully measured. This should not exceed 0.1 lit. per mm of pipe diameter per km of pipeline per day for each 30 M head of pressure applied for CI DI & A.C. pipes where as twice this figure shall be taken for prestressed concrete pipes. For P.V.C. pipes this should not exceed 1.5 lit. per 10 mm of nominal bore for a length of 1 km. During testing if any joints are found leaky they shall be repaired and/or redone by the Contractor at his cost till the test is found satisfactory. Similarly, any pipes, collars, specials, show hair cracks, leaks, etc. during testing the Contractor shall replace them with sound pipes and specials together with new joints, entirely at his own cost, till a satisfactory test is given. The pipe, specials, etc. which crack during testing will, however, be supplied by the Contractor, replacement free of cost. The hydraulic test shall be given in the presence of the Engineer-in-charge. 20% amount of the item of laying, Jointing of pipeline will be withheld for hydraulic testing. IDS 10 Fixing of Sluice Valves, Scour Valves, Air Valves, etc. Unless otherwise specifically mentioned in the tender items the required sluice valves, scour valves, air valves, etc. shall be supplied by the Contractor. The materials supplied shall be flanged as per requirement. The valves are to be carted to the site from supply place, lowered in the trenches and jointed to the pipeline as directed with cost of all jointing materials, such as lead, aloe-rope, rubber packing, nuts and bolts, fire wood, etc. and the labour cost, which included in the tender items. The joints may be either flanged or S & S lead joints depending upon the nature of valves supplied and Contractor shall have no extra claims for any particular type of joint required to be done. The required number of jointing for fixing these valves is included in the tender item. The measurement will be per number of valve and the length for tail pieces will be payable under item of laying and jointing. 90% amount will be paid on its supply and remaining 5 % amount will be released on completion of fixing and 5% on testing.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme IDS 11 B.B. Masonry Chamber (Providing and Constructing)

127

The work is to be done in workmanlike manner as per type designs of the M.C. and as directed. The cost of extra excavation in all strata which is in addition to the pipeline trench excavation is included in this item, while the excavation, covered under pipe line trenches coming in the chamber is admissible for payment separately under the respective tender items of excavation for pipe trenches. Sizes of chambers mentioned in tender item are the internal dimension of the chamber. The tender item covers 1:3:6 CC bedding 15 cms thick on the well rammed bottom 23 cms thick BB Masonry walls in CM 1:5 cement plaster 12mm in CM 1:4 from both faces, 1:2:4 CC either plain or RCC as required 10mm thick for coping and providing and fixing R.C.C. M.H. frame and cover. This is a completed item and any incidentals not mentioned above but are necessary as per type design are deemed to be included in this items. The finished top of the chamber shall be flush with road-surface and shall not cause any hindrance to the traffic. The measurements shall be on the basis of completed number of chambers. IDS-11A Air Valve Shaft This item consists of providing and fixing in position air valve G. I. medium class or M.S. 6mm thick pipe shaft assembly of 2.7 M height. The shaft shall be of diameters specified in the drawing appended. This shaft shall be provided and fixed on the branch flange air valve Tee fixed in pipeline. The item includes providing and making flanged joints with required rubber packing & nut bolts. This items also includes cost of providing and placing M150 concrete 150mm thick around air valve Tee including encasing of vertical shaft in P.C.C. M 150 as shown in the drawing. The Item also includes only fixing of air valve & isolating valve together with providing & fixing required specials for the purpose. The cost also includes R.C.C. raft as shown in the drawing when the strata met is of B.C. soil. But the cost of excavation, air valve Tee & air valve & isolating valves is not included in this item. The works shall have to be carried out as per the drawing & after fixing the assembly, it shall have to be tested hydraulically at no extra cost. The mode of measurement. shall be on number basis for complete assembly. IDS 12 Providing, Erecting, Laying and Fixing in Position CI/MS Pipes and Specials for Inlet, Washout, Overflow etc. The item includes providing, erecting, fixing, laying and jointing pipes and specials for inlet, outlet, washout, overflows, etc. as described in tender item. The pipes and the specials of any category as specified are to be erected and jointed under ground or above either in horizontal or vertical or inclined direction as per requirements with all leads and lifts involved in the work. Erection shall be in perfect line and level. Necessary supporting girders, ropes, chain-pulley, etc. if required shall be arranged by the Contractor at his own cost. The item includes cost of all labour and materials for jointing such as lead, nuts and bolts, rubber packing, etc. The materials shall be procured by the Contractor from open market at his own cost. The tendered rate includes both lead and flanged joints depending upon the nature of pipes and specials and no extra claims for any modification, increase or decrease in joints of any category shall be entertained. in case of lead joints the standard lead consumption for lead shall be as per specification of item of pipe line works.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

128

The cost involved in fixing pipes and specials in walls, etc. together with leak proof arrangements thereof required in included in the tendered rate and no extra claims for any provision required shall be entertained. Satisfactory hydraulic test shall be given by the Contractor at his cost, which is included in tender item. During testing if any joints are found leaky they shall be repaired at the Contractor's cost. Pipes if found leaky, cracked, during testing they shall be removed, replaced refixed and jointed with good pipes and specials. Two coats of anti-corrosive black paint shall be given to the pipe and specials above ground and cost thereof is included in the tender item. The job shall include laying of pipes and specials upto ground, sluice valves for inlet, outlet washout, overflow, etc. and their interconnection, etc. as required and directed by the Engineer-in-charge. The mode of payment shall be 90% on supply of material, 5% after erecting & Laying, and 5% after hydraulic testing. IDS 13 1. Two Tap Standposts (Providing and Constructing) This is completed job item precast/cast-in-situ standposts and the work shall be carried out as per Schedule 'B' item and appended type design and drawing and as directed. The item includes the cost of providing cast-in-situ- standpost, excavation in all strata plain or RCC M - 150 (1:2:4) as per site condition. Providing and laying G.I. pipes of 25 mm diameter, 7.5 RM and 12 mm diameter and 2.0 M providing and fixing 100mm diameter GI pipe 2 RM or 75 x 75 x 6 mm MS angle, making connection of 25 mm diameter GI pipe with service line, providing and fixing tap 2 Nos. and providing and fixing barbed wire to the standpost when MS angle is fixed instead of GI pipe, etc. All other incidentals required for the completed item as per type drawing are included in this item and no extra payment shall be admissible for any particular item in the completed job. This item also includes required 25 mm diameter GI connection from the nearest distribution service line upto standpost for a length of 7.5 meters including drilling holes, etc. in service line, providing and fixing ferrules with clamp and specials, providing and fixing 15 mm wheel valve, etc. complete. When good foundation is not available for standpost and if it is specifically mentioned in the tender item then in that case, cast in site standposts shall be provided as per type design. It will be the responsibility of the Contractor to safeguard the structure from any damage upto the date of handing over to M.C. The mode of measurement shall be on basis of each number.

2.

3.

4.

5. 6.

IDS 14 Road Box The item includes providing and fixing 225 x 300 mm CI road box including necessary excavation, supporting RCC pipes or BB masonry, etc. complete. The mode of measurement shall be on basis of each number of completed item. IDS 15 Providing and Fixing Manhole Frames and Cover, Cowl Type Ventilators The cost of providing the above items is included in tender item. These are to be properly fixed at place and manner as directed. Painting with two coats of anticorrosive black paint is also included in this item. If locking arrangements are required they shall be done by the Contractor as directed without any extra cost. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme IDS 16 Surface Road Boxes with Chamber

129

The Road Box should be of CI and trapezoidal having a size of 22.5 cm x 30 cm at height. The weight of the road-box should not be less than 18 kgs. The road box should have a hinged corner fixed to the body. The contractor shall produce sample of road box and get it approved and procure the entire number as per approved sample. The item includes necessary excavation, refilling, supporting, RCC pipe (450 mm dia) or BB masonry, etc. complete. IDS 17 Specification for recuperation test Taking recuperation test of supply well after completing the required depth of excavation as per tender, etc. complete. The item includes carrying out recuperation including providing of electrical/diesel pump sets and pipe, etc. The test is to be performed by pumping out the complete water from well by providing sufficient number of pumps (the total horse power of pumps shall not be less than the horsepower of the pumps included in the scheme). The test is to be carried out as indicated in the Manual on Water Supply and Treatment and as per the instructions issued in circular no. (Marathi) MJP/QC/TB/2597 dated 20-11-1997, vide Appendix V. Measurement and Mode of Payment Measurements The measurements are to be recorded in measurements book as per manual on Water Supply and Treatment by an officer not below the rank of Deputy Engineer. Mode of Payment The payment can be made after carrying out recuperation test as indicated above, at least for five consecutive days. The Engineer in charge should record in measurement book that "I am satisfied with the test conducted and the results of recuperation test". IDS 18 Nalla crossing In the event of pipeline crossing the Nalla or River where considerable depth of soft materials or sand is anticipated the pipe line anchorage work shall have to carried out in the following manner. After the pipe is laid to the required depth in nalla or river bed the anchoring of same has to be done by inserting 80 mm dia. GI pipe for a length of 1.50 m below invert of the pipe by hammering in the soft strata to its full depth. The material in the dug pipe shall be removed by small & long spoon for its full length. Then a 16 mm dia. 1.75 m long M.S. bar duly hooked at the upper end shall be inserted in the G.I. pipe as shown on the type design. This process shall be followed by pouring in of cement grout through the G.I. pipe. The cement grout shall be poured for sufficient time to see that cement bulb is formed at the bottom of the G.I. pipe dug, to hold M.S. bar tight in position. The item includes cost of all material viz. 80 mm dia. G.I. pipe, 16 mm M.S. bar, cement grout & all labour required for the work. But it excludes the cost of excavation on pipeline for its exposure up to invert. The work shall have to be carried out as per appended type design & as directed by the Engineer -in - charge. The mode of payment shall be on the basis of per anchor pipe. In case where hand strata is available in the river bed, the pipe line top should be at least 15 cms below the hard rock level in the river bed. This is needed for ensuring non-scouring of pipelines. Alternatively pipeline can be laid above HFL it on RCC chairs, payable under relevant item. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme IDS - 19 1. 2. 3. 4. 5. 6. 7. IDS - 20 1. 2. Specifications for polythene Arrangement Over Filter Media

130

The polythene sheet of 1.5mm thick shall be used for spreading over the filter media. It shall be of good quality durable and of good make. It shall be spread over the filter media at top most layer in such a way that top paddle filling shall not mix with filter media so that it will not choke up. Care shall be taken that no top portion shall remain open after spreading of polythene sheet. The work shall be executed as directed by the Engineer-in-charge. The mode of measurement will be on square meter basis. The item includes providing and neat spreading over filter media as directed by Engineer-in-charge. Detailed Specification For Trial Bore Trial bore of 150 mm dia shall be taken on the spot. Finalised by the G.S.D.A. to a depth of 20 mtrs. below Ground. The bore shall be core bore, the samples of soil and rockment while drilling shall be taken for every 1 mtr. depth. The soil samples shall be collected in polythene bags. The hard cores of the rock shall be marked with the depth of which they are collected. The procured cores shall be collected to the departmental stores for the observation of G.S.D.A. The drilling shall be thoroughly vertical. Casing pipe of 140 mm dia. 6 kg/cm2 shall be provided upto hard strata and it shall be kept 0.50 mtrs. above Ground level. The casing pipe shall be plugged with PVC cap. When the work is completed. If water is struck while drilling, the details like depth at which it met quality of water etc. shall be noted and reported to the Engineer-in-charge. If water is met while drilling then as usual yield test shall be taken as per procedure adopted in GSDA department and Measurements shall be recorded by providing "V" Notch. MODE OF MEASUREMENT The mode of measurements for drilling shall be on running meter basis. The mode of measurements for casing pipe shall be on running meter basis. No extra payment will be given for providing and plugging of bore well by a PVC cap.

3.

4. 5. 6. 7. 8.

9.

10. 11.

The work shall be executed or directed by the Junior Geologist and Engineerin-charge of the scheme. If site is changed by GSDA after observing completion then Trial bore will also have to be taken on the new site. Selected by GSDA in the same manner and as per detailed specification. The payment will made as per accepted rates.

11.

If original site is changed by GSDA after his observation of samples, then the contractor is binding to execute the work of well as per accepted Tender's rates on new site, No extra payment will be given due to change in site.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 13. THE MODE OF MEASUREMENTS

131

A certificate will be recorded in the Measurement Book regarding satisfactory test and Trial of pump. IDS 21 Detailed Specification for construction of pump house over jack well 1 The pump house for pumps upto 100 H.P. to be constructed over R.C.C. jack well shall be of 8M dia. internally. The height of the pump house from floor top to soffit of roof shall be 5.5m 2 8 Nos of R.C.C. Columns of size 0.3 m x 0.3 will be cast in M.250 from floor slab to roof slab. The R.C.C. lintel band shall be cast in M-150 at lintel level throughout the circumference for wall width of 0.23 m and it shall be of 15 cm thickness. The doors & window openings shall have R.C.C. chajja of 75 cm length & the width extending to 10 cm on either side of the opening with 12 cm thickness in M-150. The roof shall be covered with RC.C. slab of 15 cm thickness in M-150. The slab shall project 10 cm beyond the external surface of wall. The reinforcement to be provided to R.C.C. components shall be of tor steel as directed by the Engineer in charge. These components shall be properly finished as directed. the pump house walling shall be in 2nd class B.B. masonry of 0.23 m thickness to be constructed in cement mortar 1:6 for full height . The external & internal surfaces of the pump house shall be provided with cement plaster in CM 1:3 with 12 mm & 20 mm thickness respectively. Internal surface to have neeru finish. One No of rolling steel shutter of clear size 1.5m x 2.2 m from 18 gauge steel laths with side guides, bottom rail, bracket, door suspensions shaft, rolling springs, locking arrangement & housing box at the top including mechanical gear operation arrangement shall be provided & fixed with fixtures & fastenings. This shall be painted with three coats of approved shade oil paint as directed. Three Nos. of steel windows of clear size 1M x 1.2 M shall be provided & fixed at suitable locations as directed. The windows shall be with ventilators including fabrication, glazing with plain / obscured glass panel of approved type & quality, fixtures & fastenings, 10 mm square bars at 100 mm centre to centre together with finishing with oil paint of 3 coats. The pipe railing having 1.00 m height consisting of 50 x 50 x 6 mm thick M.s. angle as verticals at 1.5 m c/c with three rows of 25 mm dia. G.I. pipes of medium class shall be provided and fixed at the outer edge of the gallery slab circumferentially. The railing shall be applied with painting in 3 coats of oil paint over one coat of anticorrosive paint of approved shade & colour as directed. The external surface of the pump house be provided with 2 coats of water proof cement paint. The shade be got approved from Engineer-in-charge. The internal surface should be applied with 2 coats of washable oil bound distemper. The ceiling shall be applied with 2 coats of white wash. This includes scaffolding & preparing the surface etc complete as directed. R.S. joist of IS MB 200 x 100 mm shall be provided & fixed in the pump house as shown in the drawing & as directed. to make gantry arrangement. This shall be fixed exactly over the two pumps. The RCC columns shall be such located that the monorail gantry spans on them. The joist shall be applied with one coat of anticorrosive paint & over it two coats of oil paint. On the wall of the pump house name of water supply scheme & other details as directed shall be painted with oil paint of approved colour & shade with letter size of No. of Corrections Chief Officer

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Contractor

Tender Document for Bhokar Water Supply Scheme

132

45 cm x 30 cm. The cost of all required materials for painting & labour for preparing the surface to receive paint including scaffolding etc is covered. 11 This is a completed item including cost of all materials & labour required. The different items included in this item shall be executed as per the detailed specifications of such item else where specified in the tender. The cost of pump house floor, flooring, pump supporting girders, gallery slab is not included in this item. Detailed specifications for switch room The switch room square shaped of 2.27 m x 2.27 m internal size & of height 3m from floor level to soffit of roof slab shall be constructed. The foundation to be constructed for switch room shall depend upon the strata available at the site. Therefore the foundation to be provided for different stratas shall be as under. When good foundation is available & ground level is above HFL. This will include excavation in all strata for a width of 0.65 m & depth of 0.60 m. U.C.R.S. masonry basement in C.M. 1:6 shall be constructed over a levelling course of 10 cm thickness to be cast in P.C.C. in M-10. The plinth level shall be 0.5 m above ground level. The excavated gaps left & the space between ground level & floor shall be filled with excavated material in 20 cm layer with due compaction & watering. The exposed surfaces of the basement shall be pointed with cement mortar of 1:3 proportion. B.B.M. steps in CM 1:4 shall be provided to get access in switch room. ii) When B.C. soil is available & the ground level is above HFL. This will consist of providing 4 Nos. of double under reamed piles of 25 to 30 cm diameter in cement concrete M-15 including boring under reaming in all strata of soils, filling the bulbs & stem with cement concrete M-15 mix & reinforcement as per drawing. The depth of pile shall be 1 m below ground level & the bulbs shall be provided at depth as shown on drawing. On these piles so cast 4 Nos. of R.C.C. beams of size 0.25 m x 0.3 m size shall be cast in M-15 at ground level with required reinforcement as shown in drawing. The basement of 2nd class B.B. masonry in CM 1:4 shall be constructed on ground R.C.C. beams. The floor level shall be 0.6 m above G.L. The B.B. masonry steps of door width in CM 1:4 shall be constructed over R.C.C. landing slab of 1 x 1 x 0.10 size in M-15 projecting from the basement. The portion between ground level to bottom of floor shall be filled with excavated material with due ramming & watering. iii) When B.C. soil is available & the ground level is below HFL. In this case the pile foundation & G.L. beam arrangement shall be as specified in para b (ii) above. On ground beam 4 Nos. of R.C.C. columns of 0.25 m x 0.25 cm size will be cast in M-15 upto the bottom of R.C.C. plinth beams. The maximum height of the columns from top of G.L. beam to rop of plinth beam shall be 3.00 m so that floor slab level is 1.00 m above HFL at the site. The plinth beams shall be of 0.25 m x 0.40 m size in M-15. R.C.C. floor slab of 0.10 m thickness shall be provided in M-15 at plinth level. Two R.C.C. M-15 landings of 1 x 1 x 0.1 in shall be provided at ground & plinth beam level to rest the M.S. ladder to get access in the pump house. The M.S. ladder 0.5 m width consisting of 75 x 10 mm MS flats as stringers & 16 mm M.S. bars in double rows as steps placed at 25 cm c/c with 3 coats of anticorrosive paint. This shall be provided & properly fixed between the two landings. Contractor No. of Corrections Chief Officer a) b)

12

IDS 22 :

i)

Tender Document for Bhokar Water Supply Scheme c)

133

The super structure of the switch house shall be in 2 nd class B.B. masonry of 0.23 m thickness in CM 1:4 for 3 m height & the roof will be covered by 10 cm thick R.C.C. slab to be cast in M-15. This slab shall extend 10 cm from all sides beyond the external surface of walls. One steel door (0.9 m x 1.8 m size) one steel window (0.9 m x 1.2 m size) with glazed panels shall be provided & fixed at suitable locations as directed. For window 10 mm size square bars at 10 c/c shall be provided. The doors & windows shall be finished with oil paint in 3 coats. The doors & windows shall have R.C.C. lintel of 0.15 M thickness & R.C.C. Chajjas of 0.10 m thickness & these are to be cast in C.C. M-15. The length of the chajja shall be 0.75 m & the width extends by 10 cm on either sides of the opening. The external & internal surfaces of the switch house shall be applied with 12 mm thick cement plaster in CM 1:4. The internal surfaces shall have neeru finish. The external surfaces will be applied with 2 coats of water proof cement paint. & the internal surfaces with 2 coats of white wash. The cost of reinforcement required for all R.C.C. members is included in this item. In case of switch room described in para b (i & ii), 40 mm thick cement concrete flooring in cc. 1:2:4 as directed shall be provided This is a completed item including cost of all materials & labour required. The different items included in this item shall be executed as per detailed specifications of such item elsewhere specified in the tender.

d)

IDS 23 Detailed Specification for Cattle Trough 1) 2) 3) 4) 5) The cattle trough of internal size of 3 m x 0.9 m and depth of 0.76 m above floor slab level shall be constructed including side platform, gutters and stilling chamber The location of the cattle trough shall be as directed by the Engineer incharge The item includes excavation in all strata together with disposal of surplus excavated stuff as directed. PC.C. of M-150 and of 15cm thickness for trough and platform and 10cm thickness for gutter. The trough bottom and walling shall be in R.C.C. M-200 with M.S. reinforcement. So also the stilling chamber of 0.60 m x 0.60 m internal size shall be in M-200 with 12 mm thick cement plaster in CM 1-3 internally. The platform concrete of M-200 and of 15 cm thickness shall be laid on rubble soilng as shown on the drawing. The gutter shall be constructed on 3 sides of the trough with brick masonry (in CM 16) walling of 12 cm thickness with coping of 10 cm thickness in M-150 on the walling. The waste water from the trough shall be led to the soak pit of 1 m x 1 m x 0.45 m size which will be filled with brickbats through gutter as specified above. The water from the supply main shall be brought to the trough through 25 mm dia. G.I. medium class pipe of 5 m length- The item also includes cost of G.I. pipe and one 25 mm dia. G. M. wheel valve with 1 00 x 225 mm dia. road box and one brass tap of 25 mm dia. and required G. I. specials. The charges for lowering, laying and jointing of pipes, specials and valves is included in the item. 25 mm dia. G.I. pipe for a length of 1.0 m for washout with end plug shall also have to be provided and laid as directed. The cost also includes charges of cross connection to the supply main with required specials. This is a completed item and the payment shall be made on number basis.

6) 7) 8) 9)

10)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

134

IDS24) Detailed Specifications for Water Supply Arrangement, Drainage Arrangement & Electrification for staff quarter 1) Water Supply Arrangement : This item includes providing and laying in trenches 20 mm dia. G.I. pipe - 30 m, providing and fixing polyethylene water storage tank of 500 liters, providing and fixing white glazed earthware wash basin and 45 cm x 30 cm in size 1 No.. and providing and fixing 20 mm dia- screw draw bib/stop tap of brass - 4 Nos. etc. 2) Drainage Arrangement : This item Includes providing, laying and jointing 1 00 mm dia. salt glazed stoneware pipe - 1 0 m including excavation, refilling, providing and constructing brick masonry inspection chamber of 90 cm x 45 cm - 2 Nos. with RCC cover, providing and fixing hume pipe septic tank 900 mm dia. with vent pipes and cap including necessary fittings, providing and constructing soak pit of size 120 cm x 120 cm x 120 cm including brickbats providing and fixing Indian type W.C pane 27" white - 1 No providing and fixing 10 cm Cl nahani trap etc. complete. 3) 1. Electrification This item includes providing and fixing point wiring for light/fan bell with ISI mark 25 sqm allum. insulation wire 1 - 1 kV in rigid PVC conduit heavy gauge of 20 mm dia 25 points. providing and fixing independent plug - 5 Nos., supply and erecting approved make 1 x 40 watt white stove enamelled box fluorescent fitting made of ".S. sheet 0.8 m - 5 Nos. and supply. erecting wall bracket four corners and providing power supply to quarters including MSEB charges etc. including providing and making earthing arrangement as directed. Barbed Wire Fencing The item pertains to providing and erection of wire fencing of twisted galvanised iron seven stranded fencing wire in 8 rows supported on R.C C. post as mentioned in the item including excavating pits forthe foundation, providing 1:4:8 cement concrete foundation block size 0 3 x 0 3 x 0 3 x 0.6 x 0.3 x 0.3 x 0.6 m fastening the wires and parting steel posts. Bd.W.3.2 Materials : Seven strand twisted galvanized iron fencing wire No.4 shall be used It shall be of the usual commercial type and mild steel angle posts of 50 mm x 50 mm x 6 mm shall be 165 cm long shall confirm to (A-1 1) IS 226-1962 and IS 8001962- The steel shall be free from defects mentioned in IS 226-1962 and shall have a smooth uniform finish. It shall be straightened if necessary, in the mill before shipment, Material shall be free from loose mill scale, rust-pits or other defects affecting its strength and durability, foundation block 1,4,8 concrete for the p.c.c. foundation shall conform to other specifications as mentioned elsewhere in the tender. Galvanised iron straining bolts 30 cm (about 12") long and 16 mm dia. shall be of the standard commercial type. Erecting The RCC post shall be fixed at 2 5 m c/c for the given length The holes shall be at 22 cm c/c leaving 22 cm from the ground level. The RCC poles at every 30 m shall be suitably strutted on either side of the post. These struts shall be of the same size of post and shall have foundation of 1 4 8 cement concrete of 0 3 m x 0. 3 m x 0. 6 m These struts, shall be fixed at 451, and be fixed at the top post wire, At the concrete has set the fencing wires shall be fixed through holes made in the m s angles and strained with straining bolts. The m.s. angles shall be painted with a priming coat of red lead and two coats of good oil paint of approved shade Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme Item to include

135

Supplying m.s. angles as mentioned in the item and specified above, seven strand twisted gaivanised fencing wires, straining bolts, foundation concrete, angle struts, oil paint for m.s angles, excavating pits, fixing m.s. angle and strut in 1:4-8 p.c.c fixing fencing wires to m s angles and straining the wires with all necessary labour materials and use of tools for the satisfactory completion of the item. SPECIFICATION FOR LEAD CAULKED JOINT Bd V.2 Page No.509 Jointing the pipes with lead caulked joints. The tender item covers providing, lowering, laying and jointing of Cl pipes as per requirement and as directed by the officer-in-charge or his representative by lead caulked joint. The cost of conveyance of these materials from stores to the site of work is also included in the tender item. The lead should be of the best quality conforming to IS 782-1966 shall be used for making joints. The method of lead joint shall be as under: The outside of the spigot and the inside of the socket shall be thoroughly cleaned with a wire brush. The spigot shall be carefully centered in the socket by one or more laps of spun hemp yarn twisted into ropes of uniform thickness thoroughly soaked in hot coal-tar of bitumen and dried before use. The hemp rose shall be well caulked into the back of the socket to leave a depth for lead of 50 mm and onwards. The proper depth of each joint shall be as specified and tested before running the lead. Before leading the joints the alignment of the pipes and the gradient shall be checked. The leading of joints shall be done by means of ropes covered with clay or by using special leading rings. The lead shall be melted rendering it thoroughly fluid and each joint shall be filled in one pouring. After a section has been leaded, caulking shall be commenced. The lead shall be freed from the leading pipe outside of the socket of the other pipe, with a flat chisel and then caulked round. Three separate times with the proper caulking tools of increasing thickness and hammer 2 to 3 kg in weight in such a manner so as to make the joints sound and water tight. After being well and evenly set up, the joint shall be left flush neat and even with the socket. Mode of Payment: The unit of measurement shall be on number basis and shall be paid at the rates specified in Schedule 'B'.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme WATER RETAINING STRUCTURE SUCH AS ESR/SUMP, ETC. a) 1. 2.

136

Constructing Storage Reservoirs viz. ESR,GSR/Sump on Departmental Design The reservoir will be a covered RCC container supported on RCC column with footing and intermediate braces, etc. as per drawing. Suitable MS Ladders for ESR of capacity 2,00,000 litres with landing at regular intervals for approach to the gallery and top slab of ESR shall be provided. For above 2,00,000 liter capacity, R.C.C. spiral stair case with parapet should be provided. RCC cantilever catwalk (Gallery) of 1.0 meter width GI pipe railing shall be provided at floor level, preferably at junction of floor slab and vertical walls. Ventilators shall be provided on top slab of ESR. One number of CI Manhole frame and cover shall be provided and fixed in the roof of tank and at catwalk way. One M.S. ladder shall be provided and fixed for access into the tank through manhole left in the roof. Ladders shall be provided as per specifications. Water level indicator assembly of approved type shall be provided and installed. Lightening arrester as per IS specifications and confirming to I.E. Rules shall be provided and fixed. Vertical and horizontal piping of CI flanged pipes, C.I. specials of required sizes for inlet, outlet and overflow arrangements together with suitable sluice valves shall be provided as per drawings. For washout one tee shall be fixed on the outlet pipe with one valve of suitable diameter. Sluice valves of required size shall be fixed for inlet, outlet and washout. These valves shall be supplied by the Contractor conforming to relevant ISS and of makes approved by MJP. Required no. of BB masonry chambers of suitable size as directed with manhole frames and covers shall be provided and constructed at suitable locations for sluice valves. Waterproof cement plaster of CM 1:2 proportion 20 mm thick shall be provided for inside surface of the tank; including roof slab bottom. Outside surface of tank, exposed faces of columns, braces, beams, catwalk bottom portion of slab and exposed surface of the tank shall be provided with smooth finish and then three coats of approved shade of Snowcem paint as per colour scheme approved by the M.C. shall be rendered. Letters indicating capacity of tank, name of scheme and year of construction shall be either embossed or engraved on vertical wall of tank and shall be painted with suitable shade of oil paint in two coats. On completion of work hydraulic test or water tightness test shall be given as per standard specification. Therefore, required water arrangements shall be made by Contractor at his own cost. Since this is lump-sum offer, the interim payments, will be made at different stages of works contract, as per break-up schedule enclosed. Since this is water retaining structure, Contractor shall give a satisfactory hydraulic test of the tank. This test shall be considered as water tightness test and accepted if

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

137

the structure appears bone dry from outside after filling with water upto full supply level and the drop in water level is not more than 40mm in 7 days. For this purpose the water filling arrangements shall be made by the Contractor at his own coast including cost of water pumping arrangements, etc. If during testing any damage occurs to the structure, it will be the responsibility of the Contractor to rectify the same. Until satisfactory water tightness test is given on completion of work, interim payments to be made at different stages of works, as per schedule of break up of payment enclosed. Materials required for Construction 1. Sand, Metal and Bricks Sand, metal and bricks of best variety within a lead of 30 kms will be insisted. Samples of these will have to be got approved prior to use on work. 2. Cement OPC L & T / Orient / Ambuja / Coromandal king brand of 43 grade in Jute / Polythelene bags (weighing 50 kg. each) shall be used for all water retaining structures. 3. Reinforcement The steel to be used shall be of grade Fe-250, Fe-415 as per design. The Contractor shall have to procure the steel from open market. The steel procured by Contractor shall be only tested one and the Contractor shall produce manufacturer's test certificate without which it shall not be accepted. Further the Contractor shall arrange to get tested any samples from steel brought at site by him in Laboratory at his cost and result should be submitted to the M.C. Defective steel brought by Contractor shall be rejected and will not be allowed to be used. Atleast three samples of each diameter should be tested from every 5 tonnes or part thereof. Tested lots only will be permitted to be used. 4. Concrete The PCC and RCC works shall be as per IS 456/1976. Concrete mixer shall be used for preparing concrete. Vibrator shall be used to consolidate concrete while placing in position. While concreting, representative samples in form of test cubes shall be taken by the contractor under M.C. Supervisor and shall be tested under his supervision. Charges of testing shall be borne by the Contractor and will be recovered from bills payable to him. Frequency of taking cubes (sampling, Acceptance, Criteria, Standard deviation values, carting of concrete cubes, test producers should be followed by contractor. 5. Water Level Indicator Assembly Mercury water level indicator with 15 mm dia. required G.I. pipes (Medium Duty), stop cock (2Nos.), necessary fixtures suitable for staging height upto 15 M and water depth upto 5 M to represent depth of water in tank, etc. shall be provided and fixed by the Contractor as per direction of M.C. The indicator should be fixed to exterior face of column at about 1.5M above ground level at site or as per requirement of Engineer-in-charge. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme 6. Lightening Arrester

138

Lightening arrester conforming to IS and Indian Electricity Rules shall be provided. The lowermost portion of tape for 2 metres above ground level and 2 metre below ground level shall be enclosed by 50mm GI pipe of medium class. 7. Pipe Railing at free end of Catwalk Railing shall be of GI pipes 'A' class not less than 25 mm diameter in the two rows and shall be fixed in position to RCC posts or M.S. anlge posts of size 65 mm x 65 mm x 6 mm, 1.0 meter in height, located at a maximum distance of 1M. C/C. The railing and the posts shall be provided with two coats of oil paint of approved shade. 8. M.S. ladder One Number of M.S. ladder shall be provided and fixed to give access into the tank through manhole in the roof slab. The ladder shall be comprising of 65 mm x 6 mm M.S. angles placed at 45 cm. apart with 16 mm M.S. bars in double rows as steps at 20 cm c/c. 9. Centering Work Before starting the work of ESR, the Contractor should submit design of centering and its detailed drawings for approval by MJP. This set of drawing shall be kept at site. This condition shall be applicable for the ESR with Contractor's design. b) Specifications and Design Contractor's own Design General Note : The Contractor shall quote his offer in Schedule `B' for the complete work of constructing RCC ESR to be carried out as per his own design based on given data i.e. he shall tender the offer in Schedule `B' for construction of elevated tank of required capacity including fixing pipes, specials, valves and providing and fixing, lightening conductor, C.I. manhole frame and cover, water level indicator ventilator, etc. complete with his own design and drawings. The design shall be got checked from the institutes like Engineering College. Remarks shall be complied and scrutiny charges shall be borne by the Contractor. The contractor shall submit the name, qualifications and experience of Design Engineer who has prepared detailed RCC calculations or who will prepare design and drawings on acceptance of the tender. The authorised representative of the designer will have to inspect and certify the works at foundation level and every beam level. The design Engineer has to prepare and submit a note on design methodology and construction and drawings in two copies through the contractor. The note should indicate general description, and salient features of the design covering the following points : 1) 2) 3) Capacity Shape and type Staging height of tank indicating various levels Criteria for RCC ESRs, GSRs/Sump with

Design, Providing and Constructing RCC ESRs 1 1.1

1.2

1.3

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 4)

139

Safe bearing capacity assumed in the design or safe bearing capacity of strata based on actual investigation report of laboratory and type of foundation provided with proper justification. Maximum and minimum subsoil water level. Site plan showing location water level. Line diagram showing dimensional and sectional elevation with important levels. Design parameters proposed to be adopted for detailed design.

5) 6) 7) 8) 1.4

This note on design will be subjected to thorough check by the Engineer-in-charge of the owner and the tender will be accepted and work order issued by the competent authority only after verification that the design to be offered will fulfil the requirements of the design as per tender specifications. After acceptance of tender, the contractor will have to submit three copies of detailed design and drawings of the structure within 30 days of acceptance of the tender. The design Engineer will be required to attend the office of Engineer-in-charge for preliminary discussion for scrutiny remarks, etc. whenever required with all reference data, books, IS specifications, etc. at his own cost. It will be binding on the Design Engineer of contractor to clarify, modify, redesign and prepare drawing after compliance of scrutiny remarks by the owner or his representative such as an Engineering College, within 15 days of communication of remarks. Even though design will be approved by owner, it will be the entire responsibility of the Design Engineer and the Contractor. On approval of the design, contractor shall supply, free of cost, eight sets of design and drawing duly bound for use of the Owner. The Contractor shall also furnish the details of steel requirement along with programme of execution for completion of work within the time limit stipulated in the tender. Security deposit of the tenderer shall be forfeited if he fails to modify his design as per scrutiny remarks within specified time after levy of compensation as per tender agreement. Even though the design and drawing submitted by the Contractor are approved by the Owner/Engineer-in-charge, the Contractor will not be relieved of his contractual obligations to hand over the structure in sound condition, duly tested. In case of any damage/failure either during construction, testing or after commissioning, whether due to faulty design or defective construction, all repairs or reconstruction of the structure shall have to be carried out by the contractor, entirely at his risk and cost. No claim for such repairs/reconstruction shall be entertained.

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Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

140

Special Obligatory Condition of Design for water Retaining Structure ESR/GSR/SUMPS - Storage Reservoirs with own design Design Conditions The Contractor can alternatively quote with his own design with following conditions: 1. The design of R.C.C. ESR shall be carried out by a designer having minimum qualification of graduation in Civil Engineering/Structural Engineering. He shall sign the design and affix his name and stamp. The design shall be carried out in conformity with following IS code. a) b) c) d) e) f) g) h) 3. IS 456/1978 IS 3370- Part I and IV IS 875 IS 11682 IS 1893 with inclusion of seismic zones as per latest circular. IS 1786 for cold worked steel high grade deformed bars (Tor steel of 415 grade and Mild steel grade I shall only be used.) IS 13920/1993-for ductile detailing, applicable for ESRs under seismic zone III, IV and V. (Recent editions of IS shall be referred.) B.S.I. publication S.P. 34 (S and T) 1987.

2.

Foundation for E.S.R. The foundation should have the required safe bearing capacity Minimum depth of foundation shall satisfy the following criterion. a) b) c) Depth in soft rock shall not be less than 1 m or depth in hard rock shall not be less than 0.5 M. The total depth in all stratas put together shall not be less than 1.50 M. In B.C. soil, raft shall be provided at minimum depth of 3 M. No extra payment shall be given to the contractor on increase in depth of foundation.

4. 5. 6. 7.

The free board shall be included in the depth of water for design purposes. Minimum free board shall be 300 mm; measured below bottom of roof beam. Maximum actual water depth shall not exceed 5.0 M. Clear cover for reinforcement shall be provided as below : a) b) c) 8. a) b) Footing / Raft Columns Braces, beams, slab (Bottom and roof), vertical wall, gallery. Minimum thickness of container member shall be as below. Bottom slab and vertical wall Roof slab No. of Corrections 200 mm 120 mm Chief Officer 50 mm at bottom and sides 40 mm at top 40 mm 25 mm

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Tender Document for Bhokar Water Supply Scheme 9.

141

The design and casting of container members which includes bottom and roof beams, bottom slab, roof slab, vertical wall and gallery, shall be done in M-20 grade of concrete (1:1.5:3 proportion.) The staging of ESRs (Columns, braces, footing/Raft) shall be designed in M-15 Grade of concrete (1:2:4), however, casting shall be done in M-20 grade of concrete (1:1.5:3 proportion.) The staging shall be designed for ductile detailing as per IS 13920/1993, wherever applicable. The width of braces shall be maximum of the following in case of Earth Quake Zone III and above. a) b) 250 mm or 75% of column side (column diameter in case of circular column)

10.

11. 12.

13. 14. 15. 16.

Minimum width of brace in case of Earth Quake Zone I and II shall be 200 mm. Width to depth ratio in case of braces shall preferably be more than 0.30. Increase in permissible stress in braces, for earth quake / wind force design will not be allowed. The centre to centre distance between braces shall not exceed 4.50 M. At the joint of brace and columns, the links to the column bars shall be tied properly and this shall be thoroughly checked before concreting. Wherever annular raft is provided, the inside and outside width of raft shall be provided in such a way that the centre of gravity of upward reaction shall coincide with column/raft beam centre. Uplift pressure on the foundation of structure should be considered as per available water table at site in rainy season. However, minimum uplift upto 50% of depth of foundation below ground level should be considered in the designs. 20mm thick cement plaster with CM 1:2 proportion with water proof compound shall be provided to the container from inside (including roof beams and roof slabs/dome, etc.) The shape of container may be square or circular. Similarly the column shape may also be square or circular. Minimum size of column (width or diameter) shall not be less than 300 mm. Columns, if required to be provided inside container, for supporting roof ring beam/dome/slab, may be provided as per design requirements, following minimum cover requirements. However the size shall not be less than 200 x 200 mm (or 200 dia.) Minimum dia. of main bars in the footing shall be 10 mm and minimum clear distance between reinforcing bars shall not be more than 180 mm. Water density shall be taken as 1000 Kg/Cum and live load on gallery shall be considered as 300 Kg/sqm. Minimum load of water proof treatment on roof slabs shall be taken as 100 Kg/Sqm. The diameter, weight per metre, tensile strength and minimum elongation properties of steel, brought by the contractor/supplied by the department, shall be got tested from the approved laboratory before using it. It shall be used only when the test report indicated that the steel is in accordance with the I.S. specifications and design presumptions. i) The inlet, outlet, overflow and bypass piping shall be of cast iron D.F. pipes only. M.S. pipes will not allowed. No. of Corrections Chief Officer

17.

18.

19.

20. 21.

22. 23.

24.

25.

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Tender Document for Bhokar Water Supply Scheme ii)

142

Spout type overflow arrangement shall not be allowed. Overflow arrangement shall be from top to bottom as a vertical pipe assembly with proper drainage arrangement. For all duck foot bends for inlet, outlet and overflow arrangements, individual columns with footings resting at foundation level of ESR, columns/raft shall be provided. The manhole frame and covers, provided in the roof slab, shall be of cast iron only. Mild steel covers shall be allowed. The above four conditions i.e. 24(i), 24(ii), 24(iii), 24(iv) shall be followed without substitutes and equals. No M.S. piping and spout type overflow arrangement shall be accepted, even if rebates, etc, are offered.

iii)

iv)

v)

Inlet, outlet, bypass and scour valves with chambers shall be provided. The horizontal piping for inlet, outlet, overflow, bypass upto 3 M from outer brace shall be provided and laid without any extra cost. Lightening conductor, water level indicator, central ventilator and M.S. ladders / RCC stair case shall be provided as per Dept. specifications.

vi) 26.

The design submitted by the Contractor, shall be got checked from the nearest Government Engineering College/Government Polytechnic/reputed Engineering College/reputed Consultants, for which the scrutiny charges shall be borne by the contractor. The delay in checking designs from third party as above shall be treated as the delay on the part of contractor for operation of tender clauses. The Contractors who have already successfully constructed, tested, as per provisions of I.S. 3370, and commissioned minimum three no. of ESRs shall only be allowed to quote for alternative offers for the work on own design basis. The contractors desiring to quote for alternative offer, based on their own design, will be required to submit a certificate to above effect, at the time of pre-qualification. The certificate shall be signed by an officer of rank not below Engineer in charge. The tenders shall be invited, based on the departmental designs only, while those prequalified as above, may quote alternative offer. The alternative offer shall be in the form of additional amount/rebate in terms of fixed sum over the main offer. The main offer (Departmental Design based) shall essentially be quoted. The officer accepting the tender shall be competent to decide whether to accept the alternative offer or not. The alternative offer shall be accepted only in cases where it is beneficial to the Municipal Council, Bhokar . Size of inlet, outlet, overflow, bypass piping and valves including scour valve shall be specified as per actual requirements and makes of valves shall also be specified as per standard practice. Capacity of the container of the tank shall be the volume of the water it can store between the designed full supply level and the lowest supply level. Height of staging shall be the vertic the difference between lowest supply level and the average ground level at the site of tank. If the staging of the ESR increases or decreased than the specified in schedule "B" item, necessary payment for increase in staging height or rebate due to decrease in staging height will be effected at the prevailing rates of DSR in force at that time.

27.

28.

29. 30. 30a.

Note: Above conditions shall also be applicable for design of RCC ESRs of capacity more than 5.0 lakh litres and above except for conditions at Sr. No. 26 and with a change

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

143

in condition at Sr. No. 9, that the design of staging shall be in M-200 only i.e.(1:11/2+:3) and construction should be in M-250 only. 31. Rectification of Defective Members If it is found that certain members are defective and are found giving acoustical or vibrational disturbance even though these may be structurally sound, rectification of such members should be done by the contractor free of charge and to the satisfaction of Engineer-in-charge. II 1. CRITERIA FOR DESIGN OF R.C.C. GROUND TANK/ESR The structural design of water tank shall conform to the following standard, specification and codes of Practice of I.S. IS : 456 IS : 875 IS : 3370 Pare I to IV IS : 1893 1. General Capacity of the container of the tank shall be the volume of the water it can store between the designed full supply level and the lowest supply level. 2.1 Free board is the indication of space provided above full supply level and shall be measured at a vertical distance above F.S.L. upto soffit of beam supporting the roofs slab/dome. Free Board shall be minimum 30 cm below soffit of beam or slab, in case of domed roof, free board may be reduced upto 15 cm. The walls of container shall be designed for free board full condition. The tank foundation and other members of the structure shall also be designed for free board full condition. Part of the tank in contact with stored water and enclosing water vapour above F.S.L. shall be in concrete M-200 or even in richer grade. The allowable bearing pressure or safe bearing capacities are indicated in Schedule `B'. The tenderer is, however, advised to verify actual strata before tendering and designing the structure and offer suitable design with full justification. 2.6 Not with standing anything mentioned above if directed by the Engineer-incharge the contractor shall carry out actual strata exploration as mentioned in para 0.2 of IS 1892-1979 through a Government laboratory and adopt bearing capacity so arrived for the design. Code of Practice for plain and reinforced concrete (latest edition) Code of Practice for structural standards (latest edition) safety of building loading

Code of Practice for concrete structures for storage of liquids (latest edition) Criteria for earthquake resistance design of structures (latest edition) other ISS

2.2 2.3 2.4 2.5

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 2.7 2.8 The factor of safety shall be adopted as per clause 6.1 of IS - 6403-1971.

144

If the foundation consists of individual column footing minimum clear distance between centre of column shall be equal to twice the width of footing and clear distance between edges of footing shall be not less than width of footing. The foundation should be checked for negative pressure on soil due to combined direct and bending stresses. Negative pressure shall not be allowed on the foundation soil.

2.9

2.10 Classification of soil and characteristics of soil relevant to S.B.C. and A.B.B. shall be as per the soil investigation reports of Government institution/Government approved investigators. 2.11 For the design of foundation of the solid raft type, the Plate Theory shall be adopted. 2.12 In normal circumstances, minimum 100 mm thick plain cement concrete with 100 mm projection all around in grade M-100 with coarse aggregate as metal shall be provided as levelling course. Where injurious soils or aggressive water are anticipated the levelling course shall be of grade not weaker than M 150 and if necessary sulphate resisting or other special cement shall be used and the thickness of the levelling course shall be kept not less than 150 mm. The ground level within the foundation area of the structure shall be consolidated properly with suitable slope to drain out rain water outside the foundation zone. 2.13 In the vicinity of mines, collieries and blasting sites or areas which may be subjected to blast or shock, the tank shall be designed for dynamic forces adopted to shock. 2.14 Column may be assumed as fixed at the top of footing. 2.15 Following shall be the minimum thickness of various members of the tank container: Roof Slab Bottom Slab Roof dome Vertical wall of container 3. Loads 3.1 3.2 3.3 4. For all RCC and PCC components unit weight of concrete shall be taken as 25000 M/Cum and 24000 N/Cum respectively. Water load and snow load shall be taken as per IS 875-1964 or its latest revision. Seismic forces shall be as per IS 1893 (its latest revision). 120 mm 200 mm 80 mm 200 mm

Design 4.1 4.2 Shape of structure shall be the most economical as directed by Engineer-incharge and shall be selected depending upon site conditions. Design shall be based on the worst possible combination of various loads, moments, shears, resultant stresses in the tank in following cases. 1) Tank Full No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme 2) 3) Tank Empty Uplift pressure if any

145

Tank full means depth of water inside the container is upto full height of the container including free board. 4.3 Design shall be based on accepted bases and methods of design as well as the provisions of IS 3370, IS 456, IS 1343. Code of Practice for prestressed concrete IS 2210. (Later edition of IS shall be referred) However, methods based on experimental investigation as mentioned in para 18.2 `C' in IS 456-1978 shall not be entertained. 4.4 Design of members other than those excluded by Clause 5.4 above (i.e. roof, walls, floor, etc. of the container) shall be based on consideration of adequate resistance to cracking as well as adequate strength. Calculation of stresses shall be as per para 3.3.2. of IS 3370 (Part II) (its latest revision). For calculations relating to the resistance of members to cracking the permissible stresses in tension (direct and due to bending) and shear shall conform to the values specified in Table I of IS 337 (Part II). "The permissible tensile stresses due to bending apply to the face of the member in contact with the liquid." In members with thickness less than 225 mm and in contact with the liquid on one side, these permissible stresses in bending apply also to the face remote from liquid. For Strength Calculations For Strength calculations, the permissible concrete stresses shall be in accordance with Para 44 of IS 456-1978 where the calculated shear stress in concrete alone exceeds the permissible value reinforcement acting in conjunction with diagonal compression in the concrete shall be provided to take the whole of the shear. The maximum reinforcement shall conform Clauses 25.5.1.1 and 25.5.1.2 of IS 456 - 1978. 6. Permissible Stresses in Steel 6.1 For strength calculation (concrete assumed to be cracked) the permissible stresses in reinforcement shall be as per table 2 of IS 3370 (Part II) (its latest revision). For tor steel, the stress shall be as per IS 1786-1979 for cold worked steel high strength deformed bars for concrete reinforcement or its latest revision. The modular ratio `m' for different concrete mixes shall be as under : Grade of Concrete M : 150 M : 200 M : 250 6.3 Module ratio `m' 19 13 11

5.

Permissible Stresses in Concrete for Resistance to Cracking 5.1

5.2

6.2

Modulus of elasticity of concrete Ec shall be taken as 5700 Eck where Ec in the characteristic cube strength of concrete in N/Sq.mm. as per clause 5.2.3.1 of IS 456-1978

7.

Age Factor Age factor for increasing strength shall not be considered for the design.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 8. 9. Units : Design should be in Metric units only. Detailing 9.1 Minimum Reinforcement for Water Retaining Members

146

The minimum reinforcement in walls, floors, roofs in each of two directions at right angles shall have an area of 0.3% of the concrete section in that direction for sections upto 100 mm thick. For sections of thickness greater than 100 mm and less than 450 mm the minimum reinforcement in each of the two directions shall be linearly reduced from 0.3% for 100 mm thick sections to 0.2% for 450 mm thick section. For section of thickness greater than 450 mm minimum reinforcement in each direction shall be kept at 0.2%. In concrete sections of thickness 225 mm or more, two layers of reinforcing steel shall be placed one over each face of the section to make up the minimum reinforcement specified in this clause. 9.2 The minimum reinforcement specified in 9.1 above may be decreased by 20% in case of high yield strength deformed bars conforming to IS 1786 or IS 1139 (Latest version of ISS shall be followed.) Covers to Reinforcement

9.3

9.3.1 Minimum clear cover to reinforcement shall be per IS 456 and 3370. (Latest version shall be referred.) 9.3.2 For members of structures in contact with water effective cover shall not be more than 60mm. For bars subjected to bending stresses. For bars subjected to pure tension the effective cover shall not be more than 75mm. 9.4 Spacing of Reinforcement 9.4.1 Spacing of reinforcement shall be as per para 25.3 of IS 456 1978. 9.4.2 Spacing of lateral ties for column shall satisfy the provisions of para 25.5.3.2 `C' of IS 456-1978. 9.4.3 Reinforcement steel which accounts for resisting moments, tension etc. i.e. other than temperature and shrinkage steel, shall comprises of minimum 8 mm dia. for ribbed bars and 10 mm dia. for mild steel bars. For compressive members, the minimum dia. of main reinforcement shall not be less than 12 mm dia. Note : 1. In case of dispute regarding interpretation of any of the above clauses, the decision of the owner or his representative will be final and binding on the designer and contractor. In case of any clause not included in the above criteria, the decision of the owner or his authorised representative will be final and binding on the designer and contractor.

2.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

147

General Specifications, Technical Specifications and Design Criteria.

1. 1.1 1.1.1 General Note Design Criteria, Structural and General The Contractor shall quote his offer in Schedule `B' for the complete work of constructing Unconventional Water Treatment Plant to be carried out as per his own design based on the data furnished in this documents. He shall tender the rates in Schedule `B' for construction of complete Unconventional Water Treatment Plant including commissioning, trail run, water tightness test, etc. complete. The work shall be carried out as per the relevant ISS (latest edition), "Red Book" published by PWD department of Government of Maharashtra and practice in Maharashtra Jeevan Pradhikaran. The structures shall be designed for seismic forces as per the recent declaration of zones wherever necessary. 1.1.2 The work of providing and constructing unconventional WTP, ESR Wash Water drainage arrangement, including providing, designing, constructing, giving water tightness test, trial run shall be carried out as per relevant ISS, standard specifications (Red Book published by PWD of Government of Maharashtra and practice in vogue in Maharashtra Jeevan Pradhikaran). The contractor shall submit the name, qualifications and experience of design Engineer who has prepared detailed RCC calculations or who will prepare design and drawings on acceptance of the tender. The authorised representative of the designer will have to inspect and certify the works at foundation level and every beam level. 1.1.3 The design Engineer has to prepare and submit a note on design methodology and construction and drawings in two copies through the contractor. The note should indicate, general description, and salient features of the design covering the following points : 1) 2) 3) 4) Capacity : General layout size of structure Shape and type of wash water tank Staging height of tank indicating various levels. Safe bearing capacity assumed in the design or safe bearing capacity of strata based on actual investigation report of laboratory and type of foundation provided with proper justification. Maximum and minimum subsoil water level. Site plan showing location of WTP, ESR, Sump. Line diagram showing dimensional and sectional elevation with important levels. Design parameters proposed to be adopted for detail design. No. of Corrections Chief Officer

5) 6) 7) 8)

Contractor

Tender Document for Bhokar Water Supply Scheme 1.1.4

148

This note on design will be subject to thorough check by the Engineer-in-charge of the owner and the tender will be accepted and work order issued by the competent authority only after verification that the design to be offered will fulfil the requirements of the design as per tender specification. After acceptance of tender, the contractor will have to submit three copies of detailed design and drawings of the structure within 30 days of acceptance of the tender. The design Engineer will be required to attend the office of Engineer -in-charge for preliminary discussion for scrutiny remarks, etc. whenever required with all reference data, books, IS specifications, etc. at his own cost. It will binding on the Design Engineer of contractor to clarify, modify, redesign and prepared drawing after compliance of scrutiny remarks by the owner, or his representative such as an Engineering College within 15 days of communicating of remarks. On approval of the design, contractor shall supply, free of cost, eight sets of design and drawing duly bound for use of the Owner. The contractor shall also furnish the details of steel requirement along with programme of execution for completion of work within the time limit stipulated in the tender. Security Deposit of the tenderer shall be forfeited if he fails to modify his design as per scrutiny remarks within specified time after levy of compensation as per the tender agreement.

1.1.5 1.1.6

1.1.7

1.1.8

1.1.9

1.1.10 Even though the design and drawing submitted by the contractor are approved by the Owner/Engineer-in-charge, the contractor will not be relieved of his contractual obligation to hand over the structure in sound condition, duly tested. In case of any damage/failure either during construction, testing or after commissioning, whether due to faulty design or defective construction, all repairs or reconstruction of the structure shall have to be carried out by the contractor, entirely at his risk and cost. No claim for such repairs/reconstruction shall be entertained. 1.2 1.2.1 Common Conditions The Contractor at his own cost shall provide necessary housing accommodation and the sanitary arrangement for his staff and labour and shall pay direct to the authorities concerned all rates, taxes, royalties and other charges. The contractor shall also comply with the requirements of the Health Department as regards antimalaria measures, etc. A work order book shall be maintained on site of work and the orders given by the Engineer-in-charge shall be signed and carried out by the contractor. The contractor shall construct a temporary shed of about 20 sq. m. for use as office for inspection of works within 30 days of work order. The shed shall be the property of the contractor. 1.2.3 Water required for execution of the work and for the water tightness test of the reservoir shall be supplied by the contractor at his own cost in the manner satisfactory to the Engineer-in charge of work. No. of Corrections Chief Officer

1.2.2

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Tender Document for Bhokar Water Supply Scheme 1.2.4

149

All materials to be used shall confirm to the relevant specification as per latest version of Indian Standards, unless otherwise stated in the detailed specification of items of work. Wherever a reference to any I.S. appears in specifications, it shall be taken to mean as a reference to the latest versions of the standard. The work under this contract includes the supply of material at site of work including railway freight, loading, carting, unloading stacking as directed, insurance, local taxes, etc. The contractor shall be responsible for observing the laws, rules and regulations under the "Minor Mineral Act" and such other laws and rules prescribed by the Government from time to time. The hydraulic test of water retaining structure shall have to be given by the contractor without any extra cost. The filling of the reservoir WTP or any other water retaining structure shall be carried out gradually at the rate not exceeding 30 cm rise in water level per hour and shall not exceed 2.0 metres in 24 hours and total period of 72 hours. Records of leakages starting at different level of water in the reservoir, if any, shall be kept. The reservoir once filled shall be allowed to remain filled for seven days before any readings drop in water level are recorded. The level of water shall be recorded again at subsequent intervals of 24 hours over a period of seven days. The total drop in surface level over a period of 7 days shall be taken as an indication of the water tightness of the reservoir, which for all practical purpose shall not exceed 40 mm. If the structure does not satisfy the condition of test and the daily drop in water level is increasing the period of test may be extended for a period of seven days and if the specified limit is then reached the structure may be considered as satisfactory. 10% payment shall be with held till satisfactory test is given.

1.2.5 1.2.6

1.2.7

1.2.8

1.2.9

If even after extending the period of test, the drop is more than permissible, the contractor should empty the reservoir, rectify the defects in tank by replastering whenever necessary, applying water proofing paint, etc. and give the water tightness test till the drop in level is within permissible limits. This shall be repeated at the cost of the contractor without claiming extra cost. Any delay in giving water tightness test will invite penal action under relevant clauses of tender agreement.

1.2.10 The contractor shall provide cement plaster to the external faces of the structures in CM (1:4) 12 mm thick 2. 2.1 Criteria For Design of Water Treatment Plant The structural design of water contained water tank shall confirm to the following standards, specifications and Codes of Practice of I.S.I. IS : 456 IS : 875 Code of Practice for plain and reinforced concrete (latest edition) Code of Practice for structural safety of building, loading standards (latest edition)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme IS : 3370 IS : 1893 IS : 13920 2.1.1 General

150

Code of Practice for concrete structures for storage of Pare I to IV liquids (latest edition) Criteria for earthquake resistance design of structures (latest edition) Ductile detailing of RCC structures

Hydraulic design of various components shall be as per capacity of the container of the tank shall be the volume of the water it can store between the designed full supply level and the lowest supply level. 2.1.2 Free Board is the indication of space provided above full supply level and shall be measured at a vertical distance above F.S.L. upto soffit of beam supporting the roofs slab/dome. or the top wall for a open water retaining structure. It shall normally 30 cm,. unless permitted otherwise. Height of staging shall be the vertical difference between lowest supply level and the average ground level at the site of tank. The walls of container shall be designed for free board full condition.

2.1.3 2.1.4

2.1.4.1 The tank foundation and other members of the structure shall also be designed for free board full condition. 2.1.5 2.1.6 2.1.7 Parts of the tank in contact with stored water and enclosing water vapour above F.S.L. shall be in concrete M-200 or even in richer grade. The supporting structure shall be designed in M200 grade or in richer grade if specified. The allowable bearing pressure or safe bearing capacities are indicated in Bill of quantities. The tenderer is, however, advised to verify actual strata before tendering and designing the structure and offer suitable design with full justification. Notwithstanding anything mentioned above if directed by the Engineer in charge the contractor shall carry out actual strata exploration as mentioned in para 0.2 of IS 1892-1979 through a Government laboratory and adopt bearing capacity so arrived for the design. The factor of safety shall be adopted as per clause 6.1 (a) of IS-6403-1971.

2.1.8

2.1.9

2.1.10 If the foundation consists of individual column footing, clear distance between edges of footing shall be not less than width of footing. 2.1.11 The foundation should be checked for negative pressure on soil due to combined direct and bending stresses. Negative pressure shall not be allowed on the foundation soil. 2.1.12 For special type of foundation, like pile foundation under reamed pile foundation, etc. decision of the Owner / Engineer-in-charge shall be final binding on the designer. 2.1.13 Classification of soil and characteristics of soil relevant to S.B.C. and A.B.B. shall be as per the soil investigation reports of Government institution/Government approved investigators. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

151

2.1.14 For the design of foundations of the solid raft type, the Plate Theory shall be adopted. 2.1.15 In normal circumstances, minimum 100 mm thick plain cement concrete with 100 mm projection all around in grade M-100 with coarse aggregate as metal shall be provided as leveling course unless specified otherwise. Where injurious soils or aggressive water are anticipated the leveling course shall be of grade not weaker than M 150 and if necessary sulphate resisting or other special cement shall be used and the thickness of the leveling course shall be kept not less than 150 mm. The ground level within the foundation area of the structure shall be consolidated properly with suitable slope to drain out rain water outside the foundation zone. 2.1.16 In the vicinity of mines, collieries and blasting sites or areas which may be subjected to blast or shock, the tank shall be designed for dynamic forces adopted to shock. 2.1.17 Members of tower which are primarily subjected to dynamic stress shall be checked for ductility of the members at joint. 2.1.18 For wash water tank/water containers at the base of the tower (i.e. ground level) all columns shall be tied together just above foundation level by a structural member such as brace or a tie ring beam. Internal braces shall be provided for staging having columns more than 6 at each brace level. Braces shall be invariably provided at G.L. The centre to centre distance between braces shall not exceed 4.5 M. 2.1.19 Column may be assumed as fixed at the top of footing. 2.1.20 Following shall be the minimum thickness of various of members of the tank container: Roof Slab Bottom Slab Roof dome Vertical wall of container Inclined wall or shell Shuttering on both sides i) ii) 2.2 2.2.1 2.2.2 2.2.3 2.2.4 Slope with the horizontal more than 300 Slope with the horizontal less than 300 120 mm 200 mm 80 mm 200 mm 200 mm 200 mm 200 mm 200 mm

Loads For all RCC and PCC components unit weight of concrete shall be taken as 25000 N/Cum and 24000 N/Cum respectively. Water load and snow load shall be taken as per IS 875-1964 or its latest revision. Live load on gallery all round the elevated tank shall be considered as 3000 N/Sqm. No live load may be assumed, while designing the staging (or tower) and foundation, for seismic loads and wind loads, in tank empty condition. No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme 2.2.5

152

Wind load as per Fig. 1 A i.e. Basic Maximum Wind Pressure Map of India including winds of short duration as in squalls as per IS 8750/1964, Code of Practice for structural safety of buildings : Locating standards or it's latest revision shall be considered. Reduction factor as per Note 3 of Clause 4.4.2 shall not be applied to water towers. Seismic forces on the tower shall be as per Is 1893-1975 or its latest revision Wind and seismic forces shall not be assumed to act simultaneously. Increase in Permissible Stresses Where stresses due to wind or earthquake temperature and shrink effects are combined with those due to dead, live and impact loads the stresses specified in tables 13, 16 and 17 of I.S. 456-1978 may be increased upto a limit of 33 1/35. Design Shape of structure shall be the most economical as directed by Engineer-in-charge and shall be selected depending upon site conditions. Design shall be based on the worst possible combination of various loads, moments, shears, resultant stresses in the tank following cases. i) ii) Tank Full Tank Empty

2.2.6 2.3 2.3.1

2.4 2.4.1 2.4.2

Tank full means depth of water inside the container is upto full height of the container including free board. 2.4.3 Design shall be based on accepted basis and methods of design as well as the provisions of IS 3370, IS 456, IS 1343. Code of Practice for prestressed concrete IS 2210. Latest version of ISS shall be referred. However, methods based on experimental investigation as mentioned in para 18.2 `C' in I.S. 456-1978 shall not be entertained. 2.4.4 The part of the structure neither in contact with the liquid on any face nor enclosing the space above the liquid as in the space of staging of a tower on working stress method in accordance with the requirement of IS 456-1978. Staging should be further checked for ultimate load conditions to ensure the designed margin of safety as per Clause 46.300 of IS 456-1978. Design of members other than those excluded by clause 2.4.4 above (i.e. roof, walls, floor etc of the container) shall be based on consideration of adequate resistance to cracking as well as adequate strength. Calculation of stress shall be as per para 3.3.2 of IS : 3370 (Part - II) or its latest revision. Permissible Stresses in Concrete for Resistance to Cracking For calculations relating to the resistance of members to cracking the permissible stresses in tension (direct and due to bending) and shear shall confirm to the values specified in Table I of IS 3370 (Part II). " The permissible tensile stresses due to bending apply to the face of the members in contact with the liquid." In members with

2.4.5

2.5

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

153

thickness less than 225 mm and in contact with the liquid on one side, these permissible stresses in bending apply also to the face remote from liquid. 2.5.1 For Strength Calculations For strength calculation, the permissible concrete stresses shall be in accordance with Para 44 of IS 456-1978 where the calculated shear in concrete alone exceeds the permissible value reinforcement acting in conjunction with diagonal compression in the compression in the concrete shall be provided to take the whole of the shear. The maximum reinforcement shall conform Clause. a) b) 2.5.2 25.5.1.1 and 25.5.1.2 of IS 456-78.

The permissible compressive stress (direct) in shells (i.e. Top dome, conical wall and bottom dome) shall be reduced by 43% for 10 cm thick shells. For thickness more than 30 cm the compressive stress shall be reduced by 15% and for intermediate thickness i.e. 10 cm to 30 cm linear interpolation shall be done. Permissible Stresses in Steel For strength calculations (concrete assumed to be cracked) the permissible stresses in reinforcement shall be as per table 2 of 3370 (Part II) (its latest revision). For tor steel, the stress shall be per IS-17860/1979 cold worked steel high strength deformed bars for concrete reinforcement or its latest revision. The modular ratio `m' for different concrete mixes shall be as under : Grade of Concrete M :150 M : 200 M : 250 Modular ratio `m 19 13 11

2.6 2.6.1

2.6.2

2.6.3

The analysis of staging of the tank shall be done by using any established method such as portal frame method, etc. The staging shall be analyzed for combination of dead loads, live loads and wind or seismic loads. The effect of continuity of beams at the junctions shall be properly accounted and column reaction worked out for different combinations of loading, axial forces, shear forces, bending moments and torsion shall be calculated in the members. Modulus of elasticity of concrete Ec shall be taken as 5700 Eck where Ec is the characteristic cube strength of concrete in N/Sq.mm. as per clause 5.2.3.1 of IS 4561978. Columns shall be checked for tensile stress for both the conditions mentioned in para above, in combinations with axial tension and bending due to wind and seismic loads and shall be checked for maximum tensile stress arrived. Stability of the structure shall be checked as per provisions of clause 19 of IS-1978. Age Factor Age factor for increasing strength shall not be considered for the design.

2.6.4

2.6.5

2.6.6 2.7

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme 2.8 Units Design should be in Metric units only. 2.9 2.9.1 Detailing Minimum Reinforcement for Water Retaining Members

154

The minimum reinforcement in walls, floors, roofs in each of two directions at right angles shall have an area of 0.3% of the concrete section in that direction for sections upto 100 mm thick. For sections of thickness greater than 100 mm and less than 450 mm, the minimum reinforcement in each of the two directions shall be linearly reduced from 0.3% for 100 mm thick sections to 0.2% for 450 mm thick section. For section of thickness greater than 450 mm minimum reinforcement in each directions shall be kept at 0.2%. In concrete sections of thickness 225 mm of more, two layers of reinforcing steel shall be placed one over each face of the section to make up the minimum reinforcement specified in this clause. 2.9.2 2.9.3 The minimum reinforcement specified in 2.9.1 above may be decreased by 20% in case of high yield strength deformed bars conforming to IS 1786-1966 or 1139-1966. Covers to Reinforcement

2.9.3.1 Minimum clear cover to reinforcement shall be as per ISS 3370 (I to IV) and 456. 2.9.4 For members of structure in contact with water effective cover shall be more than 60 mm. for bars subjected to bending stresses. For bars subjected to pure tension the effective cover shall not be more than 75 mm. Spacing of Reinforcement

2.10

2.10.1 Spacing of reinforcement shall be as per para 25.3 of IS 456 - 1978. 2.10.2 Spacing of lateral ties for column shall satisfy the provisions of para 25.5.3.2 `C' of IS 456-1978. 2.10.3 Reinforcement steel which accounts for resisting moments, tension etc.. i.e. other than temperature and shrinkage steel, shall comprise of minimum 8 mm dia. for ribbed bars and 10 mm dia. for mild steel bars. For compressive members, the minimum dia. of main reinforcement shall not be less than 12 mm dia. 2.11 1. Note : In case of dispute regarding interpretation of any of the above clauses, the decision of the owner or his representative will be final and binding on the designer and contractor. In case of any clause not including in the above criteria, the decision of the owner or his authorised representative will be final and binding on the designer and contractor.

2.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 3.

155

Technical Specifications

General

3.1

The tender is inclusive of necessary excavation in all types of soft and hard strata, lean concrete below foundation, foundation concrete, R.C.C. footing, container tank covered with R.C.C. roof slab/dome, with RCC ventilator in the roof, RCC stair case or M.S. ladder, lightening conductor, G.I. pipe railing, fixing of pipe assembly, valves, construction of B.B. Masonry chambers, providing and laying R.C.C. pipe line for drain, cement plaster for tank from inside with waterproofing material neat finishing, cement based paint from outside, painting capacity, name of scheme, etc. on body wall of tank, etc. complete as per detailed specifications for all units of WTP, Sump Pump House, etc. complete. Clearing of Site Before starting the work the site shall be cleared of all shrubs, grass and other vegetations including large and small bushes, all stumps, removal of roots, cutting and disposal of small trees upto 300 mm girth, etc. (The girth shall be measured at a height of 1.5 metre above G.L.) The site to be cleared consist to be cleared shall consist of the entire area required to be cut down to accommodate the reservoir. The contractor shall make himself familiar with the local rules and regulations pertaining to land clearance, special requirements of forest area, wherever applicable, and the shall be carried out in strict accordance therewith.

3.2

3.3

Excavation The side slopes of the cutting shall generally have the following slopes for stability: a) b) c) 1:1 slopes for excavation in earth, murum, boulders etc. 1:2 slope for excavation in hard murum. No slope will be allowed for soft and hard rock.

If, however the strata met with can sustain safety, steeper slopes than those mentioned above may be permitted with the prior written permission of the Engineerin-charge of the work. 3.4 Dewatering or Pumping If pumping or dewatering of water is required to be done at any time during excavation, the contractor shall arrange for such draining by excavating channels, pumping or otherwise and shall maintain such arrangements to the satisfaction of the Engineer-in-charge for such a period as may be required. The discharge of the dewatering pumps shall be conveyed to drains and shall not be allowed to be spread in the vicinity of the work site. All cost for such arrangements including shall be borne by the contractor and no extra payment shall be admissible for such operations. 3.5 Shoring Open cutting shall be suitable shored, sheathed and braced, if required by the Engineer or by site conditions or to meet local laws, for protecting life, property, adjoining work site. Adequate shoring and strutting shall be provided by the contractor at his own cost; warped or deformed timber shall not be used. The shoring shall project at least 150 mm above ground level and shall extend to a suitable depth below and bottom. Wherever necessary the planks or struts shall be driven by compressed air pile Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

156

drivers. The planks shall be fixed close enough to avoid any running in of sand or earth through the joints. The shoring materials shall not be of size less than those specified below, unless steel sheet piling is used or unless approved by the Engineer in writing. a) b) c) Planks Walling pieces Struts 5 cm thick 10 cm x 20 cm 15 cm x 20 cm

For walling pieces round timber shall not be allowed in a vertical plane, there shall be at least three struts or more as directed by the engineer. They shall rest on walling pieces. The spacing of the struts shall be as per the requirement. At the bottom, extra struts shall have to be provided if ordered by the Engineer-in-charge. 3.5.1 The excavated material shall be transported by the contractors and stacked at suitable places as directed by the Engineer-in-charge. The stacks shall be made outside the area of excavation and shall not endanger the work in any way and shall avoid the obstruction to footpaths, road-driveways, hydrants, access to the properties and work sites. Gutter shall be kept clear. Natural water courses shall not be obstructed. Separate stacks shall be formed for : a) b) c) d) 3.6 3.6.1 rubble considered suitable for masonry work or road work; rubble of inferior quality and boulders soft rock, earth murum road spoils upto 150 mm size.

General Requirements Cement concrete shall be in accordance with IS 456-1978. Fine and coarse aggregates shall be confirming to 383-1970, or its latest revision. The selection of the type of fine and coarse aggregates to be actually used shall be as directed by the Engineer-in-charge. The proportion of fine and coarse aggregates to be actually used shall be as directed by the Engineer-in -charge. The proportion of fine and coarse aggregates and water to be actually used shall be such as to produce dense concrete of the required standard. C.I./M.S. Pipe Assembly of Flanged and S&S Pipes & specials & Sluice Valves Detailed drawing showing the pipe assembly with pipes, specials, valves, etc. shall be obtained from the owner before fixing the pipes, specials, valves vertically and horizontally. The drawing shall also show bye pass arrangement from incoming main to distribution as also the draining of overflow and washout. For duck foot bends plan concrete block of adequate size and in M-150 grade shall be provided by the contractor. These concrete blocks shall rest on firm ground (and not on refilled soil) or on the raft slab & shall have to minimum depth of 600 mm. The width of the block shall be such that it should have an off set of 150 mm on all sides. Thrust blocks of adequate size and in M-150 grade shall also be provided wherever required or as directed by the Engineer-in-charge.

3.7 3.7.1

3.7.2

3.7.3

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 3.7.4

157

All the C.I./M.S. flanged pipes, S&S pipes, specials and sluice valves, M.H. Frame and covers as per requirement will have to provided by the contractor. Jointing materials shall be provided by the contractor at his own cost and got approved from the Engineer-in-charge before using. Pig lead if required shall be procured by the contractor. Material shall be as per respective ISS. MS or C.I. pipe insert with middle flanges for insertion in concrete for inlet, outlet, overflow, etc. shall also be provided by the contractor without claiming extra cost. Material shall be as per respective ISSM.S. or C.I. pipe inserts with crippling flanges for insertion in concrete for inlet outlet overflow, etc. shall be provided by contractor. The pipes before using shall be cleaned properly from inside. The vertical pipes shall be fixed exactly in plumb. The horizontal flanged and / or S and S pipes shall be laid to proper grade and alignment. The flanged pipes and specials and sluice valves shall be jointed by means of nuts and bolts, washers, and 3 mm thick tree play rubber packing with hubbock. The S and S joints shall be made with rubber or pig lead as directed. The sluice valves shall be fixed on horizontal pipe line for inlet and outlet, washout and bye pass. Pipes shall have to be cut by the contractor if required without claiming extra cost. The vertical pipes, specials and valves shall be painted with three coats of anticorrosive paint after jointing and testing. For draining the washout, R.C.C. NP2 class, pipes as specified in the drawing shall be provided, laid and jointed by the contractor. This work includes giving satisfactory hydraulic test to the required head of water and all material, equipment and labour shall be arranged by the contractor at his own cost.

3.7.5

7.6

The horizontal pipes shall have minimum cover of 1.0 M chamber of adequate size and height/depth as required shall be constructed for sluice valve in brick masonry 225 mm thick in CM 1:6. The foundation concrete shall be 150 mm thickness in C.C. M 100. The inside shall be cement plastered in CM 1:3. The outer side shall be pointed in 1:2 PCC coping 100 mm thick cast in situ in CC M 150 (1:2:4) and including providing and fixing of C.I. M.H. Frame and Cover medium duty of size 0.9M x 0.5 M as per IS-1726-1997. Water Level Indicator A water level indicator shall be provided and fixed, reading depth of water in metre upto 10 cm. The system shall consist of uncorrodable materials and shall be simple and easy to maintain. The water level indicator shall be provided and fixed as approved and directed by Engineer-in-charge. The indicator shall be full scale to upto 3.0 metres and ratio type above 3.00 metres height. Alternatively manometric gauge or electronic water level indicator can be offered.

4.

5.

Access to Roof Access to the roof and entry to the inside of the tank shall be provided by MS ladder of 45 cm width at roof level of the tank. The access to roof manhole shall be provided with parapet or G.I. pipe railing. At ground level or at walk-way level, the access for going up shall be provided with a M.S. door and locking arrangement.

6.

G.I. Pipe Railing G.I. Pipe railing at roof level shall be provided as per details given in para 7.22.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 7. Painting

158

Name of the project and capacity of RCC GSR/ESR shall be painted on the container. 8. At least two C.I. manholes frame and cover with locking arrangement shall be provided diagonally in opposite directions with ladder for entering into the container for maintenance purpose. The size of manhole frame and cover shall be 900 mm x 450 mm rectangular as per IS 1726 - 1991. Lightening Arrester Lightening arrester shall be provided at the highest level on the roof of the tank as per IS 2309-1969. Code of Practice for protection of building and allied structures against lightening. Position and height of lightening arrester shall be such that the whole structure shall be enclosed within cone having it apex at top end of the arrester and generated by a line inclined at 60 deg. to the vertical. The arrester shall be suitably earthed. 10. Ventilator The roof of the tank shall be ventilated by providing cowls or shaft ventilator 1.00 metre x 1.5 metre height with mosquito-proof net for ventilators. The net shall be fixed with proper framing. Ventilation area shall not be less than 0.04% of the free water surface when cowl type ventilators are provided. 11. Waterproof Plaster 20 mm thick water proof plaster in CM 1:3 shall be provided on the inner sides of the container and top of the floor slab of the container using minimum 1 kg. of water proofing powder per bag of cement or as per manufacture's specifications used for preparing mortar for plastering. 12. M.S. Ladder The contractor shall provide and fix 450 mm wide M.S. dia. double mild steel bars for each step at 300 mm c/c. The ladder shall be fixed by stay of 10 mm x 50 mm flat fixed 2 M c/c. 13. Spiral Staircases The contractor shall provide RCC circular 1.0 M wide spiral stair case with central circular column with 1.0 M high parapet in M150 as per criteria for capacities greater than 2 lakh litres. M.S. ladder shall be provided for smaller capacity tanks. 14. Jointing Material All necessary jointing materials for pipe assembly, G.I. railing, M.S. ladder, etc.such as nuts, bolts, rubber packing and any other miscellaneous materials required shall be provided by the contractor at his cost. 15. Colour Wash Snowcem paint of approved shade shall be applied in two coats to whole structure externally. 16. M.S. Door M.S. steel door for stair case entrance shall be provided and fixed as per instructions of engineer or his representative. 17. 25 mm dia. G.I. railing with two horizontal rows of pipes posts of RCC 15 cm x 15 cm bottom and 10 cm x 10 cm at top or angle iron of size 65 mm x 65 mm x 8 mm and placed at 1.5 M c/c interval including painting two coats and anchorage in C.C., etc. shall be provided at top of tank and at intermediate gallery. No. of Corrections Chief Officer

9.

Contractor

Tender Document for Bhokar Water Supply Scheme 18. 18.1 Staging

159

The supporting staging shall be in the form of columns, braces. Staging on hollow cylindrical shall not be accepted, unless otherwise specially asked in NIT. If shaft staging is permissible, the following specifications will apply for the shaft portion and specifications for other items remain the same as specified in the foregoing paras. For load bearing, shaft minimum thickness should be 200 mm. Shaft should be designed in M-200 mix.

18.2

Shaft supporting a water tank must be designed as given under the para "Stresses in Circular Supporting Walls" at page 84 of the book "Concrete Water Towers Bunkers Silos and other elevated structures" by Gray and Manning (5th edition), published by Cement and Concrete Association. The vertical load causes direct compression. Under wind load, the wall acts as a vertical cantilever of hollow circular section and has to resist bending moment and shearing forces. In addition to main stresses, caused by the wall acting as a hollow circular vertical cantilever, the wind flowing on one face tends to flatten that face, distorting the circle into an oval. Horizontal reinforcement to resist a bending moment. M=+0.035 PD2 producing tension on the inside face and a moment M =-0.031 PD2 causing tension on the outside face, where P=Unit wind pressure in KN/M and D=c/c diameter of shaft in metres. The reinforcement arrived as above should be provided on both, inside and outside faces. However minimum horizontal reinforcement in the shaft shall be 0.3% of the gross concrete area provided. In case of towers in high seismic zones (i.e. Zone- IV and V) minimum horizontal reinforcement shall be 0.4% of the gross concrete area provided. Minimum vertical reinforcement in the shaft shall be 0.4% of the gross concrete area required and it shall be provided equally on both faces of the load bearing shaft. Shaft shall be checked for combined axial load and bending due to wind or seismic loads and shall satisfy the provisions of IS-456-1978 in tank full and tank empty conditions. Horizontal construction joints in shaft shall be as minimum as possible. Age factor for increasing strength shall not be considered. Shaft should be checked for tensile stress in worst condition for combination of axial tension on bending axis due to wind or seismic load for tank full and tank empty conditions. On account to minor inaccuracies in construction of the shaft the allowable direct compressive stress shall be reduced by multiplying with a factor of 0.85. On account of buckling reduction factor if any shall be multiplied by the factor of 0.85. For the calculation of direct compressive stress the contribution of steel shall be neglected. For buckling calculations reduced value of modules of elasticity due to creep shall be maximum 0.4 times its value as per IS 456-1978. At the plinth panel 50 mm thick M 150 grade shall be provided. Rectification of Defective Members If it is found that certain members are defective and are found giving acoustical or vibrational disturbances even though these may be structurally sound, rectification of such members should be done by the contractor free of charge and to the satisfaction of Engineer-In-Charge.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

160

7.0 7.1

GENERAL BUILDING WORKS

Applicable Codes and Specifications The following codes, standards and specifications are made a part of this specification. All standards, tentative specifications, specifications, codes of practices referred to herein shall be the latest edition including all applicable official amendments and revisions. In case of discrepancy between this Specification and those referred to herein, this Specification shall govern. IS:110/1983 over primers. IS:269/1989 IS:280/1978 purposes. Ready mixed paint, brushing, grey filler, for enamels for use Specification for 33 grade ordinary portland cement. Specification for mild steel wire for general engineering

IS:287/1993 Recommendations for maximum permissible moisture content of timber used for different purposes. IS:337/1975 IS:348/1968 Varnish, finishing interior. French polish.

IS:383/1970 Specification for coarse and fine aggregates from natural sources for concrete. IS:412/1975 Expanded metal steel sheets for general purposes. IS:419/1967 Specification for putty for use on window frames. IS:428/1969 Distemper, oil emulsion, colour as required. IS:702/1988 IS:710/1976 IS:712/1984 Specification for industrial bitumen. Specification for marine plywood. Specification for building limes.

IS:733/1983 Wrought aluminum and aluminum alloys, bars, rods and sections for general engineering purposes. IS:777/1988 IS:1003/1991 IS:1003/1994 IS:1038/1983 IS:1077/1992 Specification for glazed earthenware tiles. Specification for timber paneled and glazed shutters (Part 1) Specification for timber paneled and glazed shutters (Part 2) Specification for steel doors, windows and ventilators. Specification for common burnt clay building bricks.

IS:1081/1960 Code of practice for fixing and glazing of metal (steel & aluminum ) doors, windows and ventilators. IS:1124/1974 Method of test for determination of water absorption, apparent specific gravity and porosity of natural building stones. IS:1237/1980 IS:1322/1993 IS:1346/1991 IS:1361/1978 Specification for cement concrete flooring tiles. Bitumen felts for water- proofing and damp proofing. Code of practice for waterproofing of roofs with bitumen felts. Specification for steel windows for industrial buildings.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme IS:1397/1990 IS:1443/1972 flooring tiles. IS:1477/1971 (Part 1). IS:1477/1971 (Part 2). IS:1542/1992 IS:1580/1991 caulking purposes. Specification for craft paper.

161

Code of practice for laying and finishing of cement concrete Code of practice for painting of ferrous metals in buildings Code of practice for painting of ferrous metals in buildings Specification for sand for plaster. Specification for bituminous compounds for waterproofing and

IS:1597/1992 Code of practice for construction of stone masonry : Part 1 Rubble stone masonry. IS:1659/1990 IS:1661/1972 plaster finishes. IS:1834/1984 concrete. Specification for block boards. Code of practice for application of cement and cement-lime Specification for hot applied sealing compound for joint in

IS:1838/1983 Specification for preformed fillers for expansion joint in concrete pavements and structures (non-extruding and resilient type): Part 1 Bitumen impregnated fibre. IS:1948/1961 IS:1949/1961 IS:2074/1992 priming. IS:2114/1984 IS:2116/1980 IS:2185/1967 IS:2202/1991 Part 1. IS:2202/1983 Part 2. IS:2212/1991 IS:2250/1981 IS:2338/1967 materials (Part 1). IS:2338/1967 materials (Part 2). IS:2339/1963 IS:2395/1994 surfaces (Part 1). Specification for aluminum doors, windows and ventilators. Specification for aluminum windows for industrial buildings. Ready mixed paint, air drying, red oxide-zinc chrome, and Code of practice for laying in-situ terrazzo floor finish. Specification for sand for masonry mortars. Specification for concrete masonry units (Parts 1,2 & 3). Specification for wooden flush door shutters (Solid core type): Specification for wooden flush door shutters (Solid core type): Code of practice for brickwork. Code of practice for preparation and use of masonry mortars. Code of practice for finishing of wood and wood based

Code of practice for finishing of wood and wood based

Aluminum paint for general purposes, in dual container. Code of practice for painting Concrete, masonry and plaster

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme IS:2395/1994 surfaces (Part 2). IS:2402/1963 IS:2571/1970 IS:2572/1963 masonry. IS:2645/1975 IS:2690/1993 made. IS:2691/1988 IS:2750/1964 IS:2835/1987 IS:2932/1993 undercoating (b) finishing IS:3036/1992 roof finish.

162

Code of practice for painting Concrete, masonry and plaster Code of practice for external rendered finishes. Code of practice for laying in-situ cement concrete flooring. Code of practice for construction of hollow concrete block Specification of integral cement waterproofing compounds. Specification for burnt clay flat terracing tiles: Part 1 Machine Specification for burnt clay facing bricks. Specification for steel scaffoldings. Flat transparent sheet glass. Specification for enamel, synthetic, exterior types (a)

Code of practice for laying lime concrete for a waterproofed

IS:3067/1988 Code of practice of general design details and preparatory work for damp proofing and waterproofing of buildings. IS:3068/1986 Specification for broken brick (burnt clay) coarse aggregates for use in lime concrete. IS:3384/1986 damp proofing. IS:3461/1980 IS:3462/1986 IS:3495/1992 IS:3536/1966 pink. IS:3564/1995 IS:3696/1987 IS:3696/1991 IS:4020/1998 IS:4021/1995 IS:4351/1976 IS:4443/1980 mortars. IS:4457/1982 IS:4631/1986 IS:4832/1969 IS:4860/1968 IS:4948/1974 Contractor Specification for bitumen primer for use in waterproofing and Specification for PVC-asbestos floor tiles. Specification for unbacked flexible PVC flooring. Method of test for burnt clay building bricks: Part 1 to 4. Specification for ready mixed paint, brushing, wood primer, Specification for door closers (hydraulically regulated.) Safety code of scaffolds and ladders (Part 1). Safety code of scaffolds and ladders (Part 2). Methods of test for wooden flush door (Part 1 to 16). Specification for timber door, window and ventilator frames. Specification for steel door frames Code of practice for use of resin type chemical resistant Specification for ceramic unglazed vitreous acid resisting tile. Code of practice for laying epoxy resin floor toppings. Specification for chemical resistant mortars (Part 2). Specification for acid resistant bricks. Specification for welded steel wire fabric for general use. No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme IS:5318/1969 flooring. IS:5410/1992 IS:5411/1974 IS:5411/1972 IS:5437/1994 IS:5491/1969 topping,

163

Code of practice for laying of flexible PVC sheet and tile Cement paint, colour as required. Specification for plastic emulsion paints (Part 1) Specification for plastic emulsion paints (Part 2). Wired and figured glass. Code of practice for laying of in-situ granolithic concrete floor

IS:6041/1985 Code of practice for construction of autoclaved cellular concrete block masonry. IS:6042/1969 masonry. IS:6248/1979 IS:7193/1994 felts. IS:7452/1990 and ventilators. S:8042/1989 IS:8543/1978 IS:8543/1979 IS:8543/1977 IS:8543/1977 IS:8543/1977 IS:8543/1978 IS:8543/1978 IS:8543/1984 IS:8543/1977 Code of practice for construction of light weight concrete block Specification for metal rolling shutters and rolling grilles. Specification for glass fibre base coal tar pitch and bitumen Specification for hot rolled steel sections for doors, windows Specification for white portland cement. Methods of testing plastics (Part 1/Section 1) Methods of testing plastics (Part 1/Section 2) Methods of testing plastics (Part 2/Section 1) Methods of testing plastics (Part 2/Section 2) Methods of testing plastics (Part 2/Section 3) Methods of testing plastics (Part 3/Section 1) Methods of testing plastics (Part 3/Section 2) Methods of testing plastics (Part 4/Section 1) Methods of testing plastics (Part 13/Section 1)

IS:9197/1979 Specification for epoxy resin, hardeners and epoxy resin composites for floor topping. IS:9862/1981 Specification for ready mixed paint, brushing, bituminous, black, lead-free, acid, alkali, water and chlorine resisting. IS:12200/1987 Code of practice for provision of water-stops at transverse contraction joints in masonry and concrete dams. 7.2 7.2.1 Brickwork Mortar Mortar for brickwork, blockwork and stonework shall be prepared in accordance with IS 2250. Cement mortar shall consist of 1 part of portland cement to 4 parts of sand. Mortar shall be mixed on clean, hard dry platforms protected from sun and rain. The constituents shall be measured using properly made gauge boxes and shall be thoroughly mixed dry before water is added. Any mortar not used 30 minutes after the water is added shall be discarded.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

164

Portland cement for mortar shall comply with Clause 3.4 of the Specification. Sand for mortar shall comply with IS 2116 and shall be of the following grading: IS Sieve 4.75 mm 2.36 mm 1.18 mm 600 microns 300 microns 150 microns Percentage Passing by Weight 98 ­ 100 80 - 100 60 80 40 65 10 40 0 10

Sand for mortar shall be from an approved source and shall consist of hard, coarse siliceous grains free from deleterious matter. It shall be stored separately from other sand or fine aggregate and shall be kept covered. The Contractor shall submit samples of sand for mortar for the Engineer's approval if ordered. Water for mortar shall comply with Clause 3.4 of the Specification. 7.2.2 Bricks Bricks for common brickwork shall be whole, sound, well burnt clay bricks, free from cracks and best locally available. Samples of bricks to be supplied shall be submitted to the Engineer for his approval prior to procurement. Bricks shall not be tipped on the Site but shall be carefully stacked by hand keeping the different grades. Broken or damaged bricks shall not be used in brickwork.

2

The crushing strength of ordinary clay bricks shall not be less than 50 kg/cm and its water absorption shall not be more than 20 % for bricks used in panel walls and 15 % for load bearing walls. Tolerances in dimensions of bricks shall be allowed only in conformity with IS 1077 (i.e. ± 3.3%). 7.2.3 Brickwork Brickwork shall be built in accordance with the requirements of IS 2212. Every brick shall be wetted and laid on a full and close joint of mortar on its bed, side and end in one operation, joints being fully flushed up as the work proceeds. The previous course shall be wetted; if it has dried and the walls shall be brought up evenly with no portion racked up (and not toothed) more than one meter higher than another. All brickwork shall be properly bonded together. Joints shall not exceed 10 mm in thickness and shall be raked out to a depth of 7.5 mm as a key for rendering or plastering. All courses shall be truly horizontal and all perpends shall be strictly plumb and square. In cavity walls the two leaves of brickwork shall be bonded with galvanized wall ties 150 to 250 mm long as required. The ties shall be built into the horizontal joints as the work proceeds and the space between successive ties shall not exceed 750 mm horizontally nor 250 mm vertically. Ties shall be staggered and shall be laid sloping down towards the outer leaf of the cavity. Cavities shall be kept free from mortar droppings by the use of suspended battens and temporary openings at the bottom of the wall. Every fourth vertical joint in the external face in the course immediately above the horizontal damp proof courses shall be raked out and left open to form a weephole. Completed masonry shall be kept wet for a minimum period of 14 days. All 230 mm thick brick masonry shall be plumb from outside but 350 mm thick brick masonry shall be plumb on both faces. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme 7.2.4 Measurement of Brickwork and Uncoursed Stone Masonry

165

Unit of measurement for brickwork shall be cubic meter for 230 mm thickness and above and square meter for 115 mm thickness. Unit of measurement shall be cubic meter for uncoursed stone masonry in foundation and plinth and shall be running meter for compound wall. No deductions will be made for openings less than 0.1 square meter in area in brick or masonry walls. The rates shall include for carrying out the work as specified and no separate payment will be made for cutting, scaffolding, watering, forming openings and reveals, building to shape around other structures, forming cavities, wall ties, building in lintels, pipes and beams and providing weep holes and transoms and mullions as indicated in drawing including shuttering. Only reinforcement shall be paid for extra. 7.3 7.3.1 Finishes Finishes Generally The Contractor shall demonstrate his ability to apply finishes to the standards required under the Contract. If, in the opinion of the Engineer, the demonstrations do not satisfy the standards required, the Engineer may order the Contractor to employ a specialist firm of sub-contractors approved by the Engineer to carry out all or part of this work. 7.3.2 Floor Screeds Where specified, dense concrete floor screeds shall be placed over the structural concrete floor. Before the structural concrete is fully hardened, the surface shall be roughened by wire brushing in order to expose the aggregate. Immediately before laying the screed, the concrete shall be cleaned with stiff brushes and then thoroughly dampened. Before the screed is laid and after the excess water has been removed, a thin layer of stiff cement grout shall be well brushed into the roughened surface. Where directed by the Engineer, an approved waterproofing admixture such as "Sisco" or "Impermo" shall be added to screed concrete in accordance with the manufacturer's recommendations. 7.3.3 Fully Vitrified Clay Floor Tiles (Quarry Tiles) Clay floor tiles shall be heavy duty fully vitrified tiles 25 mm thick at least equal to class 1 of IS1478 or light duty fully vitrified tiles 15 mm thick at least equal to class 3 of IS1478. Coved bull nosed skirting with radiused internal and external angles and other special tiles shall be supplied to match the floor tiles. Water absorption shall be less than 3% and hardness as measured by the Mohs' scale shall be greater than 6. The tiles shall resist acidic action and staining by oil. Jointing material shall be acid resistant where shown. Floors to be tiled shall be screeded to the levels shown on the drawings. Before the screed has fully hardened, the surface shall be roughened by wire brushing or picking. An undercoat of 1:3 cement/sand mortar screed shall then be laid and bonded to the slab and immediately covered with a thin layer of 1:1 cement/sand slurry on which the tiles shall be laid and leveled. The joints shall, at the same time be carefully filled with cement grout and any surplus wiped off as the work proceeds. Care shall be taken to obtain a neat and uniform joint pattern. After laying, the tiles shall be protected to the Engineer's approval and on completion of the works the tiles shall be thoroughly cleaned.

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Tender Document for Bhokar Water Supply Scheme 7.3.7 Indian Patent Stone Flooring

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The Indian Patent Stone Flooring shall be 38 mm in thickness and shall consist of cement concrete mixed in the proportion of 1:2:3 (with 12.5 mm chips only) with an admixture of approved waterproofing compound. The least amount of mixing water that will produce a workable mix and will allow finishing without excessive trowelling shall be used. Generally a water cement ratio of 0.5 should suffice. It shall be laid after applying neat cement slurry to the surface in bays of suitable sizes but not exceeding 6 sq.m. each, and to required slope in a chess board alternate panel fashion and neatly finished smooth in red colour where directed with lines drawn as directed. The concrete shall be cast against teakwood stop-off boards, which shall be removed only after the concrete is set. No dry cement shall be allowed to be used for finishing the surface. Mechanical mixing may be resorted to. The surface shall be kept well watered after it is dry for a period of 8 days. Construction joints shall be formed in between the alternate panels cast, with straight edges, 20 mm deep and 12 mm wide in groove form. These joints on completion of work, shall be cleaned and washed free of dust with the help of brush and shall be treated with hot bitumen poured in the gap, over which fine sand shall be spread to arrest the flow of bitumen. 7.3.8 Shahabad / Tandur / Kotah Stone Flooring Stones, should be of approved quality, hard, sound, durable and of uniform thickness. Edges shall be chisel dressed and the top surface shall be machine polished with joints running true and parallel from side to side. Stones should be laid on a bed of lime mortar of proportion 1:2 or cement mortar of proportion 1:3. Thickness of mortar bedding should not be less than 12 mm and not more than 25 mm. Before laying, the stone slabs should be thoroughly wetted with clean water. Thick cement slurry should be spread over the mortar bed over as much area as could be covered with the slabs within half an hour. The slabs are then laid and gently tapped with mallet till it is firmly and properly bedded. There should be no hollows left. The joints should not be more than 2 mm wide. The joints should be struck smooth. The floor should be kept covered with damp sand or water for a week. Slabs should be of standard sizes and shapes. Slabs supplied should meet all the required properties and test requirements as stipulated in IS 1124. Kotah stones in skirting shall be laid against a bedding of cement mortar (1:3) 20 mm thick to the full height of skirting, to a true plane, level and plumb. The workmanship shall be similar to flooring. The skirting shall be laid projected beyond the finished plastered surfaces. The continues horizontal grooves at the top of skirting shall be provided if required. The skirting surfaces shall be repolished with hand to satisfaction of the Engineer. The skirting shall be cured for 7 days. The specifications and workmanship for Kotah stone risers shall be the same as per Kotah stone skirting. Top of exposed skirting shall be machine cut and polished. Tiles used at projecting corners shall be suitably leveled to present a neat corner. 7.3.9 Marble Mosaic Flooring Marble mosaic tiles of approved make and quality shall be used for flooring, where directed or specified by the Engineer. The tiles shall not be less than 25 mm thick. The tiles shall be laid in slope or level as directed, in lime mortar bed cushioning (lime and sand in the proportion of 1:2 or cement mortar 1:3) and shall be finally set in cement float of required colour and as directed. The flooring shall then be machine polished to give smooth surface and left clean after polishing.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme 7.3.10 White Glazed Tile Flooring and Dado

167

White glazed tiles including angles, corners, borders and specials shall be of Johnson or B.P.T. 1st quality or any other make and quality approved by the Engineer. They shall be 6 mm thick and 15 cm x 15 cm in size or as approved by the Engineer. The tiles before laying shall be soaked in water for at least 2 hours and shall be set in lime mortar 1:2 or cement mortar 1:3 for floors and dado to walls. Tiles, which are fixed in the floor adjoining the wall, shall be so arranged that the surface of the round edge tiles shall correspond to the skirting or dado. Neat cement grout of honey like consistency shall be spread over the bedding mortar just to cover so much area as can be tiled within half an hour. The edges of the tiles shall be smeared with neat white cement slurry and fixed in this grout one after the other, each tile being well pressed and gently tapped with a wooden mallet till it is properly bedded and in level with the adjoining tiles. There shall be no hollows in bed or joints. The joints shall be kept as close as possible and in straight lines. The joints between the tiles shall not exceed 1.5 mm wide. 7.3.12 Acid and/or Alkali Resistant Tile Flooring and Dado 7.3.12.1. Materials The acid and/or alkali resistant tiles shall have true and straight edges, shall be nonabsorbing, without stains, non-fading, and obtained from approved manufacturers. The tiles shall generally be 40 mm thick. 75 mm thick bricks may be necessary, at walls of deep pit for stability or at floor areas having considerable traffic. Tiles used shall be either 100 x 100 x 12 mm thick or 150 x 150 x 20 mm thick in size. The tenderer shall specify the characteristics of the tiles and shall enclose the manufacturers literature for the same confirming their serviceability for both acids and alkalis. The Contractor shall submit samples of tiles for accepted if it conforms in all respects to the approved samples kept with the Engineer. 7.3.12.2. Laying and Workmanship After the underbed is thoroughly dries, a heavy grade bituminous corrosion resisting protective coating shall be applied on the this dust free surface either by brushing or by other means in accordance with manufacturer's specifications so as to provide an isolating layer between the portland cement concrete and the acid-alkali resistant treatment as well as to provide a proper bonding between the same. This bituminous material shall be resistant to the splashes and fumes of both inorganic acids and alkalis and should form an elastic film not subject to flaking. Prodorlac SPL as marketed by Coromandel Prodorite Pvt. Ltd. or equivalent may be used for this bituminous lining and the number of coats provided as per manufacturer's recommendation. If multiple coat is used, sufficient drying period shall be allowed between completion of one coat and application of the next as recommended by the manufacturer, and depending on the prevalent temperature. On top of the bituminous undercoat specified above a special mastic of 12 mm minimum thickness or as recommended by the manufacturer shall be applied to provide an impervious underlay membrane to the tiling. This special mastic shall consist of a primer and a mortar. Both these shall be thermoplastic compounds of selected fillers and blended bitumen, which are solid at ordinary temperature. The primer be broken up into small pieces and put into ceuldron and heated. During heating care should be taken that the primer does not burn. it is essential to keep it in motion as a preventive measure. When the primer is not enough to flow like a liquid it is to be poured over the undercoat surface and promptly spread to uniform thickness.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

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Care should be taken to avoid moisture entrapment on the surface and to eliminate bubbles. Two layers of primer are normally suitable, but manufacturer's recommendation in this regard shall prevail. The mortar is to be heated as required to make a stiff paste by similarly breaking up into fairly small pieces and melted in the cauldron. When it reaches a butter like consistency, it is to be applied on to the primer applied surface in single or multiple layers so as to form a total thickness of the special mastic membrane of at least 12 mm or as required by the manufacturer's specification. The mortar shall be applied hot either by trowelling or by means of a standard wooden float and thoroughly worked in till it forms an even coating. The covering shall be done piece by piece and care taken to keep the correct temperature, so that a perfect weld is made. The special mastic material may be the product of Coromandel Prodorite Pvt. Ltd. or equivalent. Over this underlay the acid/alkali resistant tiles shall be bedded in special cement mortar and jointed in acid/alkali resistant resin based cement mortar. The bedding mortar shall have a bed thickness not less than 6 mm. The material shall be self-hardening, chemically setting silicate type and of chemical resistant mortar comprising an intimate mixture of a solid filler, a setting agent usually contained in the filler and a liquid binder. The material may be supplied in two components, powder and solution. When the filler powder and the liquid binder are mixed at ordinary temperature, a trowelable mortar shall be formed which should subsequently harden by the chemical reaction between the setting agent and the silicate binder forming an insoluble silica gel. The liquid binder may be neutral solution of sodium silicate and/or potassium silicate and the fillers may be silica, quartz or other material insoluble in common mineral acids. Cement Prodor S.W.K. of Coromandel Prodorite Pvt. Ltd. or equivalent may be used for the special bedding mortar. The jointing the tiles shall be done with a self-hardening cement mortar specially designed to resist both acid and alkaline as well as mixed acid and alkaline conditions. For this purpose a resin-type chemical resistant mortar shall be used comprising an intimate mixture of liquid resinous material and a powder composed of properly selected filler material and usually containing the setting agent. The material may be supplied in two components which when mixed at ordinary temperature shall form a trowelable mortar that subsequently hardens. The liquid resin may be either of a combination of the types like Phenolic Resin, Furane Resin, Epoxy Resin and Polyester Resin. The filler materials, which are usually of a carbonaceous or siliceous nature shall be selected to have resistance particularly to Hydrochloric acid and caustic-soda. The catalyst material may be incorporated in the fillers in such a manner that it becomes effective when mixed with resin. For phenolic and furane resin mortars the resin and the filler may be supplied in two packs. The resin shall have a viscosity that will permit it to be readily mixed with the powder by manual methods. The filler materials shall have properly graded particles that will permit the preparation of a minimum joint thickness of 1.5 mm. 'Furacin' as marketed by Coromandel Prodorite Pvt. Ltd. containing furane resin or equivalent shall be used for this corrosion resisting cement. The mortar is to be prepared and applied strictly in accordance with instructions. If the material is supplied in two separate parts, and inert powder and a resin based syrup, they must be mixed in the proportions given by manufacturer's data table. The jointing shall be done for the full depth of the tile and the joint width shall be 3 mm. The joints shall be finished smooth and flush pointed. Mixing shall be carried out very thoroughly and carefully in a clean enameled dish or bowl. Any lumps in the powder must be broken down by careful mixing. mixing should be carried out by adding powder to the syrup. The mixing shall be so Contractor No. of Corrections Chief Officer

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arranged that the mixed mortar is used up quickly and does not remain in bulk longer than the time specified by the manufacturer. At temperature 200oC or above, the mixing pan and contents should be kept cool by immersion in water. All necessary measures should be taken so that the bulk masses of this resin based mortar, which generates heat in setting, are not allowed to remain under fairly warm conditions which may lead to a flash set. To avoid this, it is essential that the mixed mortar is spread a thin layer on a flat tray and not left in a mass. After jointing the tiles, the flooring should not be placed under service in normal conditions before eight days or as recommended by the manufacturer and depending on atmospheric temperature. During setting and hardening, no water, steam or acid should come in contact with this jointing mortar. If the flooring has to be sloped the same shall be provided in the concrete slab or an additional graded underbed shall be provided if required, with cement sand mortar (1:3) by volume as shown in drawing or as directed by the Engineer. The Contractor shall furnish full details regarding the materials for the different treatments described above pertaining to this flooring work as per manufacturer's specifications, and shall lay underlayer, special mastic, setting mortar etc. and set the tiles properly in full conformation with the manufacturer's instructions. The entire work shall be done in workmanlike manner to the complete satisfaction of the Engineer. Alternative Proposal The tenderer may submit any other proposal of laying the acid and/or alkali resistant tiles with complete details of the treatment and material specifications for bedding, pointing, method of laying and other participants in conformity with technical requirement and serviceability for both acids and alkalis. 7.3.13 Integral Cement Finish on Concrete Floor In all cases where integral cement finish on a concrete floor has been specified, the top layer of concrete shall be screened off to proper level and tamped with tamper having conical projections so that the aggregate shall be forced below the surface. The surface shall be finished with a wooden float and a trowel with pressure. The finish shall be continued till the concrete reaches its initial set. No cement or cement mortar finish shall be provided on the surface. Where specified, a floor hardener as approved by the Engineer shall be supplied and used as recommended by the manufacturer 7.3.14 Measurement for Flooring and Dado. Unit of measurement for flooring and dado shall be sq. m. or part thereof of the superficial area. Actual quantity of flooring work carried out will be measured and paid for after making deductions for openings etc. For skirting, unit of measurement shall be linear meter for the specified width. 7.3.15 Waterproofing Work The Contractor shall give a guarantee for a minimum period of 10 years on stamp paper for all waterproofing against bad or faulty material and construction and shall rectify the work at his own cost during the guarantee period. (a) All surfaces to be waterproofed shall be dry, clean, smooth and free from dust and loose particles. Water proofing treatment shall be as per specifications of approved specialist waterproofing company and shall consist of brickbat coba covered with jointless waterproof plaster finished smooth with trowel in cement mortar with false marking of 300 mm squares. Waterproofing treatment shall be taken up the parapet walls to a height of about 300 mm in shape of round "wattas" or as directed by the Engineer. Contractor No. of Corrections Chief Officer

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Thickness of brickbat coba shall be as specified by the specialised agency. Additional thickness of brickbats shall be provided wherever there is an increased length of travel of rainwater and in such portions of baths, water closets, nahani, etc. as specified and as directed by the Engineer. (b) Where bitumen felt water proofing is adopted, it shall be of a seven layer treatment over a properly sloped screed. The layers of bitumen felt shall conform to IS: 1322. The first layer of bitumen felt shall be bonded to the dry, clean and smooth concrete surface by bitumen bonding compound. The successive layers of bitumen felt shall be bonded together with hot bitumen bonding compound as described in IS: 1346 and IS: 3037. Bitumen felt shall be Shalimar or similar approved, laid with 50 mm side laps and 75 mm end laps staggered. The felt shall be laid continuously over the surface of the roof and shall not be terminated at expansion joints. 7.3.16 Stair Nosing Contract stairs shall have nosing of an approved design, with coloured non-slip inserts and shall be fixed with counter-sunk screws. 7.3.17 Damp Proof Course Unless otherwise specified damp proof course shall be formed from bituminous felt conforming to IS 1322 with a minimum lap at joints of 150 mm. Material for damp proof course shall be subject to the Engineer's approval. 7.3.18 Cement Plaster a) Cement and sand Cement and sand shall conform to the specifications as mentioned in Clauses 3.4. b) Neeru Neeru shall be made of the best description of lime, slaked with fresh water and shifted. The lime shall be reduced to fine powder by grinding it on a stone or in a hand mill, with a thick solution of mussalla to be made or as may be desired by the Engineer. The neeru thus prepared shall be kept moist until used and the quantity to be prepared at one time shall be such that it can be used within eight days in the works. c) Workmanship All stone or brick masonry shall be thoroughly wetted and joints raked out to a depth of at least 20 mm and walls washed before any plastering is done. The surface shall then be rendered with a mortar of specified parts of portland cement and fine sand, to 20 mm thickness and specified roughness. The surface shall then be floated or set with a thin coat of 3 mm thick cement and polished well with a trowel or flat board. The cement mortar shall be used within 30 minutes after it leaves the mixing board or mill. Before any plaster work is started patches of plaster 150 mm x 150 mm shall be put on at every 3 meters apart as gauges so as to ensure an even thickness throughout the work. Cement plaster shall be done in even squares or strips. Care shall be taken to keep the whole surface thoroughly wetted for at least a week. The finishing surface shall be as specified and directed. Neeru finish shall be applied to the prepared and partially set but somewhat plastic surface, with steel trowel to a thickness slightly exceeding 1.5 mm, (1/16") and rubbed down to 1.5 mm (1/16") thickness and polished to a perfectly smooth and even finish working from top to bottom.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

171

The junction between beams and brickwork shall be plastered after fixing the expanded metal wire mesh of 300 mm width. The wire mesh shall be of size 20 mm x 20 mm gauge thickness. No separate payment shall be made for fixing such mesh. 7.3.19 Sand Faced and Plain Faced Cement Plaster The external plaster shall be finished with sand faced cement plaster in two coats. All stone or brick masonry surfaces to be plastered shall be thoroughly wetted for at least 6 hours and the joints raked to a depth of at least 20 mm before plastering. The first coat of cement plaster in 1:3 proportion shall be applied uniformly all over the surface to be plastered to a thickness of 14 mm with a trowel and in exact plumb. This coat shall be allowed to set for not less than half an hour. Indentation shall then be made in the form of waves by raking a wire broom over the surface to form a key for the second coat. Waterproofing compound such as CICO, Impermo etc. shall be added in the 1st coat of cement mortar at the rate as specified by the Engineer or by the manufacturer and as approved by the Engineer. The plastered surfaces shall be cured for seven days and thereafter allowed to dry out for 3 days before taking up the second coat of plaster. The second coat shall be applied in 1:3 proportion using clean sand screened through a mesh of not less than 0.5 mm and not more than 3.00 mm size to a uniform thickness of 6 mm by trowel and flat board in exact plumb. The surface shall then be tapped with a cork piece to give a desirable uniform granular appearance. Care shall be taken for keeping whole surface thoroughly wetted for at least one week. The plain faced cement plaster shall be in cement mortar 1:4 and shall be 20 mm thick. The workmanship shall be similar to that for sand faced plaster, except that waterproofing compound shall not be added. All surfaces applied with plain faced cement plaster shall be finished with neeru as specified. 7.3.20 Cement Pointing 7.3.20.1. General Before pointing work is taken up, the old mortar in the masonry or pitching work shall be raked out of the joints at least to a depth of 20 mm. The dust shall be brushed out of the joints and the walls shall be well wetted with fresh water until the old mortar in the wall is set to the satisfaction of the Engineer. The pointing shall then be made with fine mortar, of cement and fine sand, in the proportions as specified. The joints shall be neatly defined by the jointing, and the same shall be raised or sunk as directed. In no case shall false joints be allowed. The pointing shall be kept wet until the cementing material sets and becomes hard. The whole surface shall be left clean at the completion of the work. 7.3.21 Epoxy Lining The Contractor shall employ specialist firms approved by the Engineer for the supply and laying of epoxy linings, as specified and shown on the drawings. 7.3.22 Acoustic Tiles Where specified, acoustic tiles of a design and manufacture approved by the Engineer shall be bonded to ceilings in accordance with the manufacturer's details. They shall have glass wool backing resign bonded to grade RB2 and be fixed on timber or aluminum scantlings.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme 7.3.23 Suspended Ceilings

172

Suspended ceilings shall consist of plaster board or an approved alternative and shall be hung from the structural ceiling by galvanised mild steel hangers suitably fixed in accordance with IS: 2441. The Contractor's proposed design shall be submitted to the Engineer for approval prior to commencing the work. Where applicable, the finished ceilings shall be plastered to a smooth regular finish free from protuberances, indentations or cracks. Cornices and moulded work shall be run clean and accurately to the sections given. 7.3.24 Soft Board and AC Sheet False Ceiling For suspending the false ceiling, hangers shall be provided from the roof work. The hangers shall generally be 10 mm diameter G.M.S. rods with threads at the lower end and anchored securely in the roof concrete or welded to inserts provided on the underside of slabs, beams etc. In case the roof work is of A.C./G.I. sheeting supported on purlins and trusses, hangers shall be hung from roof steel work. The hangers shall be provided at about 1.2 meters centre to centre in both directions. 75 mm x 50 mm teakwood runners shall be provided along one direction at about 1.2 meters centre and these shall be properly secured to the hangers by means of washers and nuts and also by embedding the ends of runners in masonry work. Perpendicular to the teak wood runners, teak battens of size 50 x 50 mm shall be provided 600 mm centre to centre. The teak wood runners and battens shall be of thoroughly seasoned wood absolutely free from all defects. The rate quoted shall include antitermite treatment and painting of wood work in accordance with relevant specifications. All materials should be approved by Engineer before installation. Perforated soft board of size 600 mm x 600 mm shall be fixed to the battens by means of screws, nails etc. as approved by Engineer. The perforations shall be either uniform or at random as decided by Engineer. Necessary openings shall be provided in the false ceiling work for airconditioning, lighting and other fixtures. Perforated fiber boards, if used, shall have bevelled edges. The Boards shall be flame proof or flame retardent quality. Where specified, Thermocole slabs (TF quality) or fiber glass resin bonded slabs shall be used. Where AC sheets are used, they shall be plain, 5 mm thick and of maximum size 1200 x 1200 mm. The Contractor shall fully co-operate with other agencies entrusted with work of air conditioning and lighting. Openings in false ceilings which are less than 0.2 sq.m. in area shall not be deducted for the purpose of payment. Additional framing required for airconditioning, lighting and other fixtures shall be provided without any extra cost to Owner. It is imperative that false ceiling should be perfectly level and all joints uniform. The workmanship expected is of the highest order. After the work is completed, the false ceiling shall be given 2 coats of distemper wash of approved shade. Rate shall be inclusive of the distemper wash. Removable or hinged type inspection or access trap doors shall be provided at locations specified by Engineer. The Indian Patent Stone flooring shall be measured and paid for on actual area covered on superficial area basis. The unit rate of the work for providing I.P.S. flooring will be one square meter and the rate shall be held to include all the cost of material and labour. The linear dimensions shall be measured nett between plastered surface. The rate for Shahabad/ Tandur/ Kotah Stone Flooring and Skirting shall be per square meter of flooring laid and shall be inclusive of all costs involved including Contractor No. of Corrections Chief Officer

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supplying, setting, pointing, polishing etc. No extra payment shall be made if, the dado is to be made flush with wall surface. The rate of White Glazed Tile Flooring and Dado shall be inclusive of all costs involved including supply of glazed tiles as specified, setting, cutting to any shape, cushioning on mortar, fixing, cleaning and handing over neat and clean. Waterproofing Work-For roofs having slpoes steeper than 1 in 75, waterproofing work shall be measured as per the actual area covered. For all other roofs, it shall be measured as per the plan area of the roof. Measurements for Plain Faced and Sand Faced Cement Plaster shall be the whole plastered surface of walls, after making deductions for openings and for dressing and other portions not plastered. All plastering shall be measured in superficial area basis in square meters unless otherwise described or ordered by the Engineer. The unit rate shall be for one sq. meter of plaster. For the jambs, soffits, sills, etc. of the openings in the above works, deductions and additions shall be made in the measurements as indicated below. (a) No deduction shall be made for ends of joists, beams, posts, etc. and for openings not exceeding 0.5 square meter each. No additions or extra payments shall be made for any reveals, jambs, soffits, sills, etc. of these openings nor for finishing the plaster around the ends of joists, beams, posts, etc. (b) For openings, in masonry work plastered, exceeding 0.5 square meter but not exceeding 3 square meters each, no addition or extra payment shall be made for reveals, jambs, soffits, sills, etc. of these openings. (i) When both faces of walls are plastered with the same type of plaster, item deductions shall be made for one face only, (ii) When the plaster on both faces of such wall differs, deduction shall be made for the opening area from the respective plaster item measured at the frames for doors, windows, etc. on the side where the width of reveal is less than that on the other side, and no deduction being made for the opening for the plaster on the other side. (c) In case of opening exceeding 3 square meters each, deductions for the opening shall be made on each side and the areas of jambs, soffits and sills of the openings shall be measured and paid for. All Cement Pointing work shall be measured and paid for on actual area covered on superficial area basis. The unit of measurement will be square meter and the rates shall be deemed to cover, all relevant works, material, labour, etc. including the cost of dressing and cleaning the joints, pointing, curing etc. complete. Wall tiling shall be measured on the net area covered and shall include the requirements of Clause 7.3.20 and 7.3.21 including all special tiles or stones and for cutting and fitting around doors, reveals, pipes, and other items. Suspended ceilings shall be measured on the net area covered and shall include the requirements of Clause 7.3.23. No extra payment will be made for plastering the suspended ceilings and the rate of tendered for suspended ceilings shall be deemed to be inclusive of plastering. Cornices and moulded work shall be measured on net length covered. The superficial area of soft board false ceiling shall be measured and paid for at the unit rate fewer deductions, if any. Where moulding is specified, shall be as per details shown in drawings and shall be measured in running meters and paid for. Contractor No. of Corrections Chief Officer

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Rate quoted for Aluminum False Ceiling shall be all inclusive and payment shall be made for work done based on measurement of superficial area of false ceiling less deductions for openings, if any. Heavy duty abrasion resistant flooring shall be measured and paid for on actual area covered on superficial area basis. The unit of measurement shall be one square meter and the rate shall be held to include all the cost of material and labour. Thermal insulation for roof/floor -The net superficial area of the insulation shall be measured and paid for. 7.4 7.4.1 Joinery Woodwork in Doors, Windows, Partitions, Louvres, Railings, etc. Wood used for all work shall be the best of the respective class specified, and properly seasoned by at least 6 months air drying, suitable for joiner's work, should be of natural growth, uniform in texture, straight grained, free from sapwood, dead knots, open shakes, boreholes, rot, decay and any all other defects and blemishes. The thickness specified for joiner's wrought timbers, are unless otherwise specified, prior to planing and 3 mm will be allowed from the thickness stated for each wrought faces. All joining shall be wrought on all faces and finished off by hand with sand paper, with slightly rounded arises. The joints shall be pinned with hard wood pins and put together with white lead. Jointing shall be by means of mortice and tennon or dovetailed as approved. Any joiner's work which shall split, fracture, shrink, or show flaws or other defects due to unsoundness , inadequate seasoning or bad workmanship, shall be removed and replaced with sound material at the Contractor's expense. Doors, windows and ventilator frames, transomes and mullions shall be rebated. All dimensions shall be as per drawings. The top framing member of doors and top and bottom framing of windows and ventilators shall project about 150 mm in brickwork. The verticals of door frames shall project about 50 mm below finished floor. Surface coming in contact with brickwork shall be painted with bitumen as directed by the Engineer. Each of the door and window frames shall be provided with 3 Nos. M.S. 225 x 25 x 6 mm flat spilt hold-fasts on each side. These hold fasts shall be embedded in masonry or concrete work. The work shall conform to IS:4021. The doors shall be paneled or solid flush doors as described in the item of work. 7.4.1.1. Single leaf doors : i) 3 Nos. heavy duty railway type butt hinges 150 mm long. ii) Godrej 6 lever mortice lock with one oxidised brass 350 mm long 16mm diameter aldrop and with handles on both sides 1 No. (chromium plated brass). iii) iv) i) ii) iii) iv) Tower bolt 300 mm long. Door stop 1 No. 6 Nos. heavy duty railway type hinges 150 mm long. Aldrop 1 No. Tower bolts 300 long, 2 Nos. Cast handles 4 Nos.

7.4.1.2. Double leaf doors

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Where the single leaf doors are 1200 mm wide the number of hinges used shall be four. Similarly, if the height of the door exceeds 2200 mm, the number of hinges shall be suitably increased. Door closures shall be of heavy duty hydraulic type and shall be separately paid. Paneled doors shall comprise of 250 mm wide bottom rail, 150 mm wide middle rail and all other rails middle, top and vertical 100 mm wide. All rails shall be 40 mm thick. Panels shall be 20 mm thick. Doors will generally have no sills but if a few have to be provided, the Contractor shall do so at no extra cost to Corporate. The type of window shall be as specified. All fixtures fixed to windows shall be oxidised brass fittings. Each shutter shall have one pair of hinges, two tower bolts (one 225 mm long and another 150 mm long), one handle and one hook with eye and pegstay. Ventilators shall have two mild steel hold fasts and hinges, one handle and one hook and eye at each and one small tower bolt in the centre. Where so directed by the Engineer, the doors and windows shall be provided with parliamentary type hinges at no extra cost. The workmanship of all door and window shutters shall conform to the requirements of IS 1003 (Parts 1 & 2 ) and IS 2202 (Parts 1 & 2 ). If required, flush door panels shall be tested as per IS 4020 at no extra cost to the Corporation. Cupboards, almirahs and shelves shall be provided as shown in drawings. The doors could be of either hinged type of sliding type as approved by the Engineer. All dimensions as furnished in the drawings shall be followed. Fixtures and fittings as shown on drawings or as directed by Engineer shall be used. Railings and architrave shall conform to the shape shown on drawings or as approved and fixed by means of screws (counter sunk or otherwise) or bolts. The finish expected is of a very high order and the work shall be all inclusive whether or not all detailed specifications have been spelt out and the work shall be free from blemish . Iron bars or grills shall be provided in the windows or ventilators if expressly specified in drawings or directed by the Engineer. Glass louvered ventilators and windows where specified shall be provided. Glazed windows, louvers, ventilators and doors shall be as specified in Clause 2.8.4 and shall be provided with either clear or pin-headed class and shall be free from all blemishes and shall conform to IS:1761. It should be clearly understood that glass, which does not have uniform refractive index of which is wavy, will be rejected. Woodwork shall not be painted, oiled or otherwise treated before it has been approved by the Engineer. The whole of the woodwork shall first be treated with two coats of anti-termite wood preservative chemicals of an approved make. All the wood shall thereafter be applied with primary coat of paint. The application of primer shall not be done within 24 hours of the application of the second coat of anti-termite treatment. 7.4.2 Measurement All the doors, windows, ventilators, louvers will be measured in square meters. The measurement will be taken to the outside of framework exclusive of horns, projections, etc. The rate quoted shall be all inclusive such as nails, screws, gazing, fixtures, fittings, providing peep holes, locking device, handles, door stops, etc. The Contractor No. of Corrections Chief Officer

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rate shall also be inclusive of polishing/painting with 3 coats of approved paint over primer coat. The rate quoted for doors and windows shall include the cost of supplying and fixing frames as well. The rate for all doors, windows and ventilators shall include for providing and fixing only oxidised brass fittings and fasteners. 7.5 7.5.1 Glazing and Metal Doors and Windows Glass Generally Glass shall conform to the requirements of relevant IS codes and shall free from bubble, smoke wanes, air holes, scratches and other defects and shall be cut to fit the rebates with due allowance for expansion. 7.5.2 Sheet Glass Sheet glass shall be flat, transparent and clear as judged by the unaided eye. It shall be free from cracks. Sheet glass shall be of B quality or ordinary quality and the thickness shall be as specified in the Bill of Quantities. Sheet glass used for glazing in building shall conform to IS 2835. Modulus of rupture of sheet glass shall be 380

3

kg/cm2. Density of sheet glass shall be 2500 Kg/m . 7.5.3 Wired Glass All wired glass shall be 6 mm thick, polished Georgian or equivalent wired glass with both faces ground and polished. The glass shall conform to IS 5437. 7.5.4 Plate Glass Generally where specified windows shall be glazed in polished plate or float glass of glazing glass quality (G.G) of 6 mm or 10 mm thickness. Modulus of rupture of plate glass shall not be less than 190 Kg/cm2. 7.5.5 Glazing Putty for glazing to wood shall be prepared in accordance with IS:1635. Glazing work in buildings shall conform to IS 3548. Compound for glazing to metal is to be an approved special compound manufactured for the purpose. 7.5.7 Aluminum Doors, Windows and Screens All extruded sections used in work of aluminum doors, windows etc. shall be 3 mm thick of "Jindal" or "Hindal make". All sections shall be aluminum anodized. (Thickness of anodizing between 15/- microns to 20/-microns) , in matt or polished finish as directed. Aluminum doors, windows etc. of only approved manufacturers shall be used . The aluminum doors and windows shall conform to IS 1948. Fixing of all aluminum doors and windows shall be carried out through the Agency of Manufacturers as per their specifications. Aluminum doors and windows shall be completely water tight. In case the sections as mentioned in the Drawing are not available, the Contractor shall be allowed to use different sections on approval by the Engineer but the Contractor shall be paid as per tender item and no claim for extra item shall be entertained. The aluminum windows shall have either side projected or top projected shutters as per Drawing to facilitate the cleaning of glasses. In case of side hung windows friction hinges shall be used, with stainless steel pins. Centre hung ventilators shall be hung on two pairs of cup-pivots of aluminum alloy or brass or bronze pivots chromium or cadmium plated. Glass panes shall be free from flaws, speck or bubbles and shall be with properly squared corners and straight edges. Fittings for doors

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(a) Two floor springs of suitable make such as "Everite", "Prabhat" etc. or equivalent having double action spring, unless mentioned otherwise. (b) Each door leaf shall be fitted with two Nos. of suitable size of aluminum anodised handles from extruded tube of 100 mm x 50 mm minimum. (c) One leaf out of two shall be fitted with tower bolt at top or bottom of 230 mm size of chromium plated brass. (d) 6 lever brass lock concealed in section tube and open able from both sides with two keys. Fittings for windows One opener, one handle and 15 cms. long tower bolt of brass, chromium plated. The rate shall include the cost for fabrication, erection on site, anodising, glass beading, neoprene rubber gaskets, fixtures, fastening, scaffolding, staging etc., if required. The mode of measurements shall be the same as for steel windows. 7.5.8 Steel Windows and Doors Steel windows and doors, including folding doors shall be supplied complete with frames and fitted with door furniture where appropriate under items in the Bill of Quantities. Steel is used in fabrication of windows and doors shall have a minimum thickness of 3 mm. Steel frames for glass block windows shall have a thickness of 5 mm. There shall be no distortion in the frames. The whole frame with the exception of lugs and external faces of channels shall be precoated with approved bitumen emulsion or galvanised after manufacture. The rates quoted shall be inclusive of providing three coats off approved paint over 2 coats of approved primer coat (one shop coat and one coat after erection) where not galvanised. Rates quoted shall also include cost of lever lock and erection. Fixing lugs to be provided to guide channel to suit actual site conditions or as directed by the Engineer at no extra cost. 7.5.11 Measurement 7.5.11.1. Glass and Glazing a. No separate payment shall be made for glazing work. b. No separate payment shall be made for clips, bolts and nuts, mastic cement, putty, beads etc. that may be required for fixing the glass. c. No separate payment shall be made for cleaning the glass after erection. d. No separate payment shall be made for cutting the glass panes, to required sizes. Metal windows, doors shall be classified by the groups shown on the drawings and the requirements of Clauses 7.5.8 and 7.5.9 shall be measured on a square meter opening in masonry and shall include for supply, handling shop-coating, installation defect rectification and glazing work. Vehicular doors in accordance with 7.5.9 shall be paid per sq.m. opening in masonry.

Contractor

No. of Corrections

Chief Officer

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Plumbing shall be carried out by a specialist sub-Contractor approved by Corporate and all works shall conform with the requirements of Corporate and the relevant Indian Standards. Building drainage shall conform to IS:1742. Water supply to buildings shall comply with IS:2065. 7.6.2 Applicable Codes The following Indian Standard Codes, unless otherwise specified herein, shall be applicable. In all cases, the latest revision of the codes shall be referred to. IS 1172 sanitation IS 1742 IS 4111 (Parts 1 & 2) IS 3114 IS 4127 IS 5329 buildings IS 2065 7.6.3 Drawings Drawings showing locations of sanitary and water supply fixtures shall be furnished to the Contractor and all drawings so furnished shall form a part of these specifications. The Contractor shall refer these drawings for all information contained thereon which pertains to and is required for his work. Revisions to drawings and any new drawings made to include additional work by the Contractor shall be considered part of this specification and contract. Unless otherwise specified, the plans and specifications are intened to include everything obviously requisite and necessary for the proper and entire completion of the work and accordingly the job shall be carried out to completion as required whether each item is mentioned here or not. Based on the line diagrams/drawings furnished by the Engineer, the Contractor shall prepare detailed working drawings indicating the positions of fittings, valves, joints, nature, type and location of supports, connection to main lines etc. Four prints of each of these detailed drawings shall be submitted to the Engineer for approval and got approved before proceeding with the execution of the works. The Contractor shall obtain permission from all local statutory authorities for all proposed works prior to commencement of execution and necessary fees, etc. shall be borne by him. The Contractor shall, after completion of all works, give as-built drawings incorporating all field changes made for reference and use of Corporate. The final payment due to the Contractor will be effected only after such drawings are finalised. Construction shall not be started until the Contractor has received copies of such drawings upon which the Engineer has endorsed approval. The approval of the Engineer of any of the drawings shall not relieve the Contractor from his responsibility for correctness of Engineering, workmanship, fit of parts, details, materials, errors or omissions of any and all work shown thereon. The Engineer's approval shall constitute the approval of the design, sizes of pipes and layout only. Contractor No. of Corrections Chief Officer Code of basic requirements for water supply, drainage and Code of practice for building drainage Code of practice for ancillary structures in sewerage system Code of practice for laying of cast iron pipes Code of practice for laying of glazed stoneware pipes Code of practice for sanitary pipe work above ground for Code of practice for water supply in buildings

IS 783 Code of practice for laying of concrete pipes

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The approval shall not invalidate any claim Corporate may make for damages on account of faulty construction. No drawing will be accepted for examination by the Engineer unless entirely complete, first checked and approved by the Contractor. The Engineer will return one copy of the Contractor's drawings marked with his approval/comments. The Contractor shall furnish the Engineer two prints and one reproducible of all final drawings for record purposes. All civil works will be measured and paid under respective items of work. Main structural steel framing with holdfasts will be paid under rate quoted for miscellaneous work in general building works. 7.6.7 Cocks and Valves All cocks and valves shall be of types approved by the Engineer and in accordance with IS:6157. Stop valves, which are generally concealed, shall be made of brass or gunmetal. Stop cocks, which are exposed and bib and pillar cocks attached to sanitary fittings shall be brass or gunmetal bodies chromium plated and marked "hot" or "cold" as required. Ball valves shall be brass in accordance with IS:1703. 7.6.8 Water Pipes and Fittings All plumbing works shall be carried out through a Licensed Plumber and the pipes and fittings shall be as per the requirements of the water bye-laws. The Contractor shall get the pipes and fittings work done to the entire satisfaction of the Engineer. The responsibility of getting connection from the water department shall rest with the Contractor. The Contractor shall submit the name of the Licensed Plumber to whom the work is to be entrusted for approval of the Engineer. On completion of the work the Licensed Plumber shall sub mit a Drainage Completion Certificate, certifying that the works carried out by him have been done in accordance with specifications and provisions of and the relevant bye-laws. 7.6.10 Supply of Pipes The pipes used in the works shall be of the best approved quality. All pipes shall be perfectly straight and truly cylindrical, glazed inside and outside, free from cracks and flaws, and perfectly burnt. Those not perfectly straight and truly cylindrical, well and uniformly glazed, free from cracks and flaws etc. shall be rejected. 7.6.11 Formation for Drain Pipes The bottom of every trench shall have a true grade throughout and shall be made in perfect straight lines, shown on the plans, or as directed by the Engineer. In case any loose, soft or bad ground is met with, it shall be excavated to a solid foundation and be filled up to the invert level of the drain sewer with concrete or otherwise as directed by the Engineer. The floor of every drain trench pit shall be formed for receiving the socket of the pipes and a mass of clay shall be placed all around every joint of the drain. In excavating any trench, the materials forming the surface of any road, foot-path, garden or field, shall be kept separate and preserved for re-use at the surface when the trench is filled up. Before any road metalling is re-used it shall be carefully shifted. 7.6.12 Laying of Drain Pipes In laying the drains, care shall be taken that they are laid perfectly true to the grade, inclination and as far as possible, straight from point to point of the manholes, vents Contractor No. of Corrections Chief Officer

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or lamp holes, and that all pipes are carefully and solidly packed underneath so as to guard against subsidence or fracture of the pipes. The drainage line shall be stoneware pipes of approved quality and make. The line shall be laid true to gradient in the underground portion. Where the pipeline is above ground, cast iron pipes shall be used. The pipes, bends and other specials in the superstructure work shall be of the best quality and shall be laid vertical and fixed properly, to the satisfaction of the Engineer. The vent pipes shall be raised to about 200 cm. above the terrace floor level. All pipes in trenches over 4.5 m deep and those in loose grounds, shall be protected and encased with concrete all round as per design. 7.6.13 Jointing of Pipes Stoneware pipes shall be jointed by forcing two strands of tarred gaskets into the joints. The strands shall be sufficiently thick to fit tightly the annular space between the sockets and spigots. The annular space shall then be solidly filled with neat Portland cement, which shall be forced into the socket, so as to fill it and a fillet of cement shall then be worked round the outside of the joint. This fillet shall be kept in position by a band of coarse cloth, which shall be kept moist until the cement has set. Every joint of the stone-ware pipes, which is not concreted, shall be further protected by clay placed in the outer sides of the joint of cement (well tampered and tenacious) so as to completely surround the joint. The joint of cast iron shall be done in the manner described below : Before treating the joint with cement-sand mortar, it shall be cleaned and moistened with water. The joint shall then be filled with a mixture of one part of cement and three parts of clean fine sand, with just sufficient water to have a consistency of semi dry condition. The mortar is forced into the joints and well rammed with caulking tool until the whole space round the spigot and the socket is filled, and the joints shall then be finished off with a splayed fillet sloping at 45 degrees to the sides of the pipe. The shaft of the pipes entering of leaving the manhole shall have a splayed fillet of neat cement laid around the same, extending outside the plastering of the manhole by 75 mm. The cost of such fillet shall be deemed to be included in the rates for pipes laid complete. Care shall be taken after the joints are made to see that the pipes are not moved or shaken before the cement has thoroughly set, and that they are watertight. After the joints have thoroughly set, the Engineer or his Representative may inspect the joints, and if he has any doubt as to their soundness, he may require the Contractor to cut open and clear away the cement of any joint that he may select, and to make good the same at his expense. Normally he may not be required to open more than one joint in 20 meters of pipe laid. If however defects are found on such opening, the Engineer may direct him to open as many joints as he may deem necessary. The joints made on any one day will not as a rule be inspected until the following day so that the cement may have sufficient time to set, well before being covered up. 7.6.14 Refilling of Trenches After the foundations of any buildings or other works have been completed or the sewer or drain pipes have been laid and jointed or the inspection chamber, manholes and vents completed and as soon as the joints have been inspected and passed by the Engineer, the trenches shall be re-filled with the materials taken therefrom. In refilling the trenches, utmost care shall be exercised so as not to disturb, break or damage the jointed pipes. Immediately over and around every pipe the finest selected material shall be put round the pipe or be thrown into the trenches until the Contractor No. of Corrections Chief Officer

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same is completely protected by the finer material filling referred to above. The back filling shall be done in suitable layers and shall be well rammed properly until it is thoroughly consolidated and watered in addition, if considered necessary by the Engineer. Care shall be exercised so that the trenches are filled in solidly with selected material without voids under the pipes and that no damage is done to the pipe during the process of filling and consolidation. 7.6.15 Testing of Joints for Water Tightness The joints of stoneware pipes laid under ground shall be tested for 600 mm head of water over the crown of the highest pipe between two inspection chambers. The lowest end shall be plugged water tight. The water shall then be filled in the inspection chamber at the upper end of the line with 600 mm depth of water over the crown. Any defective joint shall be remade or embedded into M15 cement concrete to make it leakproof. 7.6.16 Manholes Manholes, shall be constructed in shape and sizes as shown on the drawings, or as directed by the Engineer. The depth of manhole is generally more than 1.5 meters and shall be sufficiently spacious to accommodate a man to clean the same. The depth of manhole shall be measured from the top surface to the invert level of the manhole. For the purpose of tender they are divided into two types, viz. (a) ordinary and (b) junction manholes. Ordinary manholes shall be constructed at places of every change of alignment of pipeline. The junction manholes shall be constructed at places where two or more pipelines converge at a point. The manhole, whether rectangular or conical, shall be constructed in brick work in cement mortar (1:2) unless otherwise specified and shall be plastered on both sides in cement mortar (1:2). In case of conical manholes, the walls shall be brought up within 180 mm of the road surface and shall be covered with a heavy duty or ordinary cast iron frame and cover as directed or specified. The floors shall be cast unless otherwise specified, in 1:2:4 cement concrete. Salt glazed or concrete or hume half channel pipes of required size and curve shall be laid and embedded in cement on the concrete base to the same line and gradient as drain pipes, unless otherwise directed. Both sides of the channel pipes shall be benched up in concrete and rendered in cement mortar 19 mm thick and formed to a slope not less than 1 in 12 to the channel. Where a pipe enters and leaves a manhole, bricks on edge must be cut to proper form and laid around the upper half of pipe so as to form an arch. All around the pipe, there shall be 13 mm thick joint of cement mortar between the pipes and the bricks. The ends of all pipes shall be properly built in and neatly finished off with cement mortar. Where the depth of invert exceeds 1 meter below the surface of the ground, galvanised, wrought iron or cast iron steps of approved pattern shall be built in the brick work at every four courses with such additional hand irons as the Engineer may deem necessary for safety. Cast iron frames shall be bedded in cement mortar (1:3) on the brick works with splayed fillet all round and in such position that the top shall be about 13 mm above the original surface of the road. The covers shall then be placed in position and the whole work shall be left neat and dry. Contractor No. of Corrections Chief Officer

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Covers and frames shall be of cast iron, circular or rectangular, or any other required pattern conforming to IS:1726. They shall be coated with Dr. Angus Smith's composition. They shall be air tight heavy pattern only, weighing about 150 Kg to 180 Kg. 7.6.17 Inspection Chambers Rectangular Inspection Chambers shall be constructed wherever the depth of the invert is less than 1:5 meters. They shall be constructed in brick masonry in cement mortar (1:2) (unless otherwise specified), and shall be plastered on both sides in 20 mm thick cement mortar (1:2). It shall be brought up to about 180 mm above the ground level and shall be covered with cast iron frame and cover or as directed by the Engineer. Floor shall be cast in 1:2:4 cement concrete or otherwise as directed, with haunches and channel etc. in 1:2:4 cement concrete. Cast iron steps of approved quality shall be provided as per details and as directed by the Engineer. Covers and frames shall be of cast iron conforming to IS 1726. They shall be coated with Dr. Angus Smith's composition. They shall be airtight heavy pattern only, weighing about 150 kg. to 180 kg. 7.6.18 C.I. Nahani Trap The Contractor shall supply 85 mm diameter nahani traps, bends and pipes with 125 mm diameter CI gratings of the best quality, conforming to IS 3989. The Contractor shall fix the traps in position as directed by the Engineer. The joints shall be sealed in cement mortar (1:1). 7.6.19 Cast Iron or Asbestos or S.W.R. Rain Water Pipes The Contractor shall supply good quality Cast Iron pipes or Asbestos Cement pipes of specified diameters including all fittings etc. In case of Cast Iron pipes, pipes shall be treated with Dr. Angus Smith's solution. The tolerance limits for various diameters for Cast Iron rain water pipes shall be as set out in Table 8.A. Table 8-A Nominal dia Ext.Dia. Tolerance for Ext. dia + 3 mm + 3 mm + 3.5 mm + 3.5 mm Wall Thickness 3 mm 3 mm 3 mm 3 mm Wt. of pipe for 1800 mm length 7.5 Kg 11 Kg 14 Kg 20 Kg 26 Kg

50 mm 75 mm 100 mm 125 mm

53 mm 79 mm 104 mm 130 mm

150 mm 56 mm + 4 mm 4 mm Note:-Tolerance in wall thickness shall be + 1 mm for all diameters.

The tolerance limits for various diameters for Asbestos Cement pipes shall be as set out in Table 8.B.

Contractor

No. of Corrections

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Table 8-B Nominal dia

50 mm 60 mm 80 mm 90 mm 100 mm 125 mm Ext.Dia. 63 mm 73 mm 96 mm 106 mm 116 mm 144 mm Tolerance for Ext. dia + 1.5 mm + 1.5 mm + 1.5 mm + 1.5 mm + 1.5 mm + 2.5 mm Thickness 6.5 mm 6.5 mm 8.0 mm 8.0 mm 8.0 mm 9.5 mm Tolerance Thickness + 1.0 mm + 1.0 mm + 1.0 mm + 1.0 mm + 1.0 mm + 1.5 mm

150 mm 169 mm + 2.5 mm 9.5 mm + 1.5 mm The size of grating shall be slightly bigger than the external diameter of the pipe. The pipe shall be fixed at the places shown in the drawing. The cavity between brick masonry and the pipes etc. shall be made good in cement mortar, neatly, after the fixing of pipe. In case of terraced roof, the cast iron grating shall be fixed at the inlet end of the pipes, properly secured in the wall to receive the rain water. The Cast Iron grating shall be recessed at a slightly lower level than the adjacent terrace floor level. The cast iron pipes shall be fixed with nails driven through the holder battens fixed in the walls with the sockets facing up. Pipes and fittings shall be kept 12 mm from the walls to facilitate cleaning, painting, etc. The joints shall be sealed with a few turns of spun yarn soaked in bitumen or tar, which shall be pressed home with a caulking tool for 1/3rd that depth of joints. More spun yarn shall then be wound round the joint with cement mortar (1:3). At the ground level, they shall be supported on M-10 concrete bricks 300 mm x 300 mm of sufficient height. The Cast Iron pipes shall be painted with one coat of red lead oil paint and two coats of anticorrosive oil paint of approved shade. Pipes, fittings and joints shall be tested for leaks as specified in clause 7.6.23 and defects, if any, shall be rectified. 7.6.20 Cast Iron or Asbestos Cement soil/vent/waste pipes with necessary fixtures and fittings, etc. The Contractor shall supply good quality pipes including all fixtures viz. tees, bends, etc. as required, free from cracks, flaws, etc. In case of Cast Iron pipes, they shall be treated with Dr. Angus Smith's solution. The tolerance limits for various diameters for Cast Iron Soil, Waste and Ventilating pipes shall be as set out in Table 8.C. Table 8-C

Nominal dia Ext.Dia. Tolerance for Ext. dia Wall Thickness Wt. of pipe for 1800 mm length 11.41 Kg

50 mm 75 mm 100 mm 150 mm Contractor

60 mm 85 mm 110 mm 150 mm

+ 3 mm + 3 mm + 3.5 mm + 4 mm No. of Corrections

5 mm 5 mm 5 mm 5 mm

16.52 Kg 21.67 Kg 31.92 Kg Chief Officer

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Care shall be taken to see that in case of soil or waste pipes the sockets shall be at the inlet end. In case of vent pipes, the sockets shall face up. The Cast Iron pipes shall be fixed with nails driven through the holder battens fixed in the walls. Pipes and fittings shall be kept 12 mm from the walls to facilitate cleaning, painting etc. The joints shall be sealed with a few turns of spun yarn, soaked in bitumen or tar, which shall be pressed home with a caulking tool for 1/3 the depth of joints. More spun yarn shall then be wound round the joint with cement mortar (1:1) In case of Asbestos Cement pipes, the pipes shall be fixed by clamps fixed to the holder batten. The Cast Iron pipes shall be painted with one coat of red lead oil paint and two coats of anti corrosive oil paint of approved shade. Pipe fittings and joints shall be tested for leaks as specified in clause 7.6.23 and defects if any, shall be rectified. 7.6.21 Testing of Joints of Drainage Pipes and Fittings The joints of drainage pipes and fittings will be tested by the Contractor without any extra charge to Corporate as per the specifications described below : All soil pipes, waste pipes and vent pipes and all other pipes when above ground shall be tested for gas tightness by smoke test under a pressure of 25 mm of water and maintained for 15 minutes after all trap seals have been filled with water. The smoke shall be produced by burning oily waste or tar paper in smoke machine. Chemical smokes are not satisfactory. 7.6.22 Providing and Fixing Stoneware Gully Traps This item pertains to the provision of stoneware Gully trap outside the building including construction of brick masonry chambers with lid and frame as specified in the Bill of Quantities. Salt glazed stoneware gully trap of the size specified shall be of best quality approved by the Engineer. Stoneware pipes shall conform to IS 651 and shall be of the internal diameter indicated on the drawings or as ordered by the Engineer. The gully trap shall be set in 1:3:6 cement concrete extending 30 cm beyond trap on three sides over which the brick masonry chamber of dimensions as indicated on the drawing or as directed by the Engineer shall be constructed. The building wall will be on the fourth side. Brick masonry shall have internal and external plaster 20 mm thick in cement mortar (1:4). The top lid including its frame shall be fixed in 1:3:6 cement concrete 10 cm thick. The trap in the chamber shall be provided with a grating. 7.6.23 Providing and Fixing Intercepting Sewer Trap This item provides for the provision and construction of an intercepting sewer trap, brick masonry chamber, including salt glazed stoneware interceptor with rodding pipe and cover, concrete foundation, concrete channels, fixing the trap, in cement concrete, etc. complete.

Contractor

No. of Corrections

Chief Officer

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185

The intercepting trap and the half glazed stoneware pipes shall be provided by the Contractor, and shall be of the best quality available in the market. The intercepting trap shall be provided in the position as indicated on the drawing, or as directed by the Engineer. The inside dimensions shall be 90 cm x 90 cm and the depth shall correspond to the depth of the drain. The foundation concrete shall be M15 and shall be laid to a thickness of 25 cm. The intercepting sewer trap shall be fixed into the extended position of the foundation concrete on the main sewer side of the chamber. Brick masonry chamber of one brick thickness shall be constructed in cement mortar (1:5) with inside dimension of 90 cm x 90 cm. During the construction, the rodding pipe of the trap shall be embedded in brick masonry. Channel in M15 cement concrete shall be formed to lead away the sewage. Alternatively half round stoneware pipes can also be provided to form channels. The floor of the chamber shall be sloping towards the channels. The brick masonry chamber shall be plastered on both sides in cement mortar (1:4) 20 mm thick. The cast iron lid and frame shall be fixed in M15 cement concrete, 10 cm thick. 7.6.24 Providing and applying bitumen layer to water closet slab This item provides for applying bitumen layer over the water closet slab for making it water proof. Bitumen shall have a penetration limited to 40 when tested in accordance with IS: 1203. The exposed slab surface shall be thoroughly cleaned of all dirt, dust and loose material. The surface of concrete shall be dry. Bitumen shall then be applied at the

0 0

rate of 2 Kg/sq. meter at a temperature of not less than 121 C (250 F) evenly throughout and allowed to dry before laying brick bat coba etc. 7.6.25 White Glazed Earthenware Water Closet Pan This item pertains to the provision and fixing of Indian type white glazed earthenware water closet Pan conforming to IS 2556 (Part 2) of the specified dimension with cast iron high level flushing cistern and other flushing accessories and necessary pipe connections upto the soil and vent pipes fixed on the outside of wall. The Indian type water closet pan, trap, the cast iron level flushing cistern, 32 mm diameter lead pipe etc. shall be approved quality and make. The Contractor shall obtain the prior approval of the Engineer before fixing the pan and its accessories into place. Brickbat coba shall be laid as specified by the specialised waterproofing agency. The water closet pan and the flushing cistern shall be fixed into the places indicated on the drawings or as directed by the Engineer. The pan shall be placed into position with the trap jointed in cement mortar (1:1) and the connecting pipes duly connected including the lead or galvanized iron pipe from the flushing cistern.

Contractor

No. of Corrections

Chief Officer

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186

Brickbat cement concrete 1:2:4 shall be cast and pressed all around the embedded surface of the pan and fittings and pipes to get solid embedding without any hollows. The whole area for water closet shall be provided with 1:2:4 brickbat cement concrete. The pan shall be fixed at a slightly lower level than the level of the general flooring, which shall slope on all sides towards the pan. If the pan is damaged while handling or fixing, it shall be replaced by the Contractor at his own cost. The flushing cistern shall be fixed on two cast iron or mild steel cantilever brackets fixed in the wall at the height indicated on the drawing or as directed by the Engineer. The lead or galvanized iron flushing pipe shall be bent leaving a straight length of about 30 cm at the top and the lower portion after the bend shall be lowered into a recess left out in the wall and shall be concealed in the plaster. The whole installation shall be tested for leak-proof joints and satisfactory functioning. The cistern, brackets and all the exposed pipes shall be painted with a base coat of red lead oil paint and two coats of approved shade of good oil paint. 7.6.26 White Glazed Earthenware Urinal This item includes providing and fixing flat back urinal as mentioned in the item. It shall be of the best Indian make conforming to IS 2556 (Part 6) and as approved by the Engineer. The urinal shall be securely fixed to the wall with the top of bowl 65 cm from the floor or such distance as may be directed by the Engineer. All the pipe connections shall be made as shown on the drawings or as necessary for the item. 7.6.27 White Glazed, Wash Hand Basin This item pertains to providing and fixing of wash hand basin of the specified size conforming to IS 2556 (Part 4) including all necessary fixtures and pipe connections upto the outside face of the wall as mentioned in the Bill of Quantities. The wash basin shall be of approved make and quality. The basin shall be fixed at the location and level shown on the drawing or as directed by the Engineer, being supported on a pair of rolled steel or cast iron cantilever brackets embedded in the wall or fixed to the wall with wooden cleats and screws. The height of the top of the basin from the floor shall be 75 cm. unless otherwise directed by the Engineer. The brackets shall be securely embedded in or fixed to the wall and the basin fixed on to the brackets. The waste pipe shall be either galvanized iron or lead and shall be provided as required upto a length of one meter. If holes are not left in the wall initially, they shall be cut and the cavity surrounding the drain or water pipes made good after fixing of the pipes. 7.6.28 Septic Tank The sewer line shall be connected to a septic tank of adequate capacity and design. The effluent from this tank shall be lead into a soak pit or disposed off as directed by the Engineer, after further treatment through a filter unit.

Contractor

No. of Corrections

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The septic tank shall be constructed as per details shown in the drawing. The work involved shall be as follows : All the work involved such as excavation in any material to the required depth, refilling the sides of masonry wall etc., masonry work including external and internal plastering in cement mortar (1:4), covering the chamber and tank with R.C.C. slab, and providing openings with R.C.C. precast covers with handles, providing cast iron steps including inlet and outlet chamber with all accessories, fittings, vent pipe, cowl cap etc. as specified and directed. All the items mentioned above for the proper and complete construction of the septic tank shall be paid for as specified under relevant clauses for the respective items of work as mentioned in Part 2 of the Specification. 7.6.29 Soak-Pit The effluent from the septic tank shall be led into a soak pit. The soak pit shall be prepared by excavating a pit of adequate size depending on the soil condition and as directed by the Engineer. The pit shall be lined with brick masonry wall 460 mm thick in cement mortar (1:5) on cement concrete bedding of M10, 600 mm wide and 300 mm thick. The pit shall then be filled with dry rubble with uniform 100 mm size stones for the first 300 mm and with brickbats for the remaining depth. At the ground level 125 mm. thick R.C.C. slab in M15 shall be provided having bearing of 460 mm on all sides. This slab shall be provided with inspection chamber frame of size 60 cm x 45 cm with cast iron cover and frame (frame and cover of weight about 102 kgs) and also 6 numbers of galvanized iron steps fixed in the wall. 7.6.30 Providing, Hoisting and Fixing in Position Water Storage Tank 7.6.30.1. General This item pertains to the provision and installation of the mild steel water storage tank including all necessary fittings. The mild steel tank made out of sheets 3 mm thick, galvanized iron pipes, ball cocks, stop taps, provided by the Contractor shall be approved by the Engineer. Unless other sizes are shown in the drawing galvanized iron pipes shall be (i) 25 mm size for overflow, (ii) 38 mm size for scour, (iii) 50 mm size for inter connection. These pipes shall conform to IS:1239 Overflow pipe shall be provided with a brass mosquito proof coupling and galvanized iron plug for scour pipe. 7.6.30.2. Fabrication and installation The tank shall cater to the capacity indicated in the Bill of Quantities. This capacity shall be the net water available for use and not the gross content. The design of the mild steel tank shall be provided by the Engineer. The number of tanks for the proposed capacity shall be as decided by the Engineer. The supporting RS joists shall be paid for separately.

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Manholes each having 450 mm diameter opening, shall be provided in the top sheet of the tank as required by the Pest Control Officer and shall be provided with hinged covers and locking arrangements. Holes of required diameter shall be provided for fixing scour tap, outlet pipes, connecting pipes, overflow pipes, water supply pipes, etc. The tank shall be painted as directed and erected in the position indicated on the drawing or as directed by the Engineer. Any damage during transport, hoisting etc. shall be made good by the Contractor at his own cost. The position and length of the overflow/scour pipes shall be so as not to damage the floor or the walls. The ball cock shall be fixed at the proper level. All the connections of the overflow pipes, scour pipes, inlet pipes shall be leak proof. The tank shall be coated with a primary coat of red oxide zinc chromate primer on the inside and outside and two coats of special bituminous black paint on the inside and two coats of approved silver paint or synthetic enamel oil paint on the outside. On completion of the work, the tank shall be tested for its performance. Any leakage or defect so detected shall be made good without any cost to the Corporation. 7.6.31 Measurement of Plumbing Measurement of plumbing work shall be by such items as are provided in the Bill of Quantities and these items shall include all work necessary to complete the supply, installation, fixing and testing of the plumbing systems to the approval of the Engineer. Cocks and valves shall be paid for as per number of cocks and valves installed. Stoneware pipes laid below ground shall be measured according to the actual length laid and no allowance will be made for any wastage in cutting the pipes to the exact length required. The unit of measurement will be a meter and the unit rate shall be held to include the cost of pipes, labour and material in excavation in any kind of soil or rock if met with, including refilling the excavated trenches, laying in position, making joints, etc. complete as specified and testing the same. Pipes laid over ground will also be measured and paid for according to the actual lengths laid, and no allowance will be made for any wastage in cutting the pipes to the exact length required. The unit of measurement will be a meter and the unit rate shall be held to include the cost of pipes, all labour and materials in laying in position with all necessary fittings, making joints, as specified above and testing of the same, if required. Manholes and inspection chambers shall be paid for per number of different depths, sizes and diameters. The rate for the manholes and inspection chambers shall include the cost of excavation in any kind of soil or rock if met with, the masonry structure, plastering on both sides, encasement of pipes, branches if any, connection of pipes, foundation concrete, concrete in haunches, floor channel, frame and cover, cast iron or wrought iron steps etc., including refilling the excavated sides with earth etc. complete.

Contractor

No. of Corrections

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189

The payment for Nahani traps shall be on the basis of number of nahani traps fixed, which includes the cost of materials and the labour for fixing the same. Cast iron or asbestos rain water pipes shall be paid for per meter of pipe fixed including supplying, fixing, jointing, painting, testing the pipes etc. complete. Cast iron or asbestos soil/vent/waste pipes shall be paid for per meter of pipe fixed which shall cover cost of all labour, supplying and fixing all materials, fixtures etc. including fixing the same to the walls and painting as specified. Stoneware gully traps shall be paid for on the basis of number of gully traps fixed. The rate shall include the cost of all labour and material for providing stoneware gully trap, constructing a chamber including plastering, fixing of lid and frame and grating inside the chamber, etc. Intercepting sewer traps shall be paid for per number of intercepting traps provided. The foundation concrete, brick masonry, plaster, cast iron lid and cover, haunch concrete etc. will be paid for as per the appropriate items of the schedule. The item rate for Bitumen layer to water closet slab includes cost of bitumen and labour charges for cleaning, application of bitumen, etc. The rate, will be per square meter of area to which the bitumen is applied including the verticals of beams, etc. White glazed earthenware water closet pans shall be paid for per number of such water closet pans fixed. Septic tanks shall be paid for per number of septic tanks installed and the rate shall be held to include provision of the materials required and all the work involved in constructing the septic tank as set out in clause 7.6.28. White glazed earthenware urinal shall be paid for per number of urinals fixed with all necessary fittings. White glazed wash hand basin shall be paid for per number of such basins fixed. Soak pit shall be measured and paid for per number of soak pits and the rate shall include the cost of excavation in any material to the required depth, refilling, construction of brick masonry walls with bed concrete, filling with rubble and brickbats, providing R.C.C. slab with frame and cover of inspection chamber including steel for the R.C.C. slab. Mild steel water storage tanks shall be paid for on the basis of the net capacity in litres. The rate quoted shall include providing transport, hoisting and fixing in position the mild steel tank. Provision of all necessary pipes, ball cocks, stop taps, mosquito proof coupling, manhole covers, etc., painting and testing shall be deemed to be included in the rate quoted. 7.71 7.7.1 Distempering, White/Colour Washing and Painting Distempering The surface to be treated shall be thoroughly cleaned of all dirt and loose particles etc. Inequalities and holes shall be filled with gypsum which should be allowed to set hard before distemper is applied.

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Distemper shall be of well known brands of approved make. It shall be applied by a broad stiff brush in two coats over a coat of primer. The first and second coat shall be applied only after the primer coat has thoroughly dried. The first coat shall be of a lighter tint. The shade of the distemper shall be got approved by the Engineer. Water bound and oil bound distemper shall conform to the requirements of IS:427 and 428 respectively. 7.7.2 7.7.3 7.7.4 Asian oil bound distemper acrylic from inside two coats in addition to primer. Cement painting in two coats from outside in addition to primer coat. Painting Generally All paints and preserves shall be of approved make and their application shall conform to the manufacturer's instructions. Where more than on undercoat is specified it shall be applied in coats of distinctive tints. Unless the manufacturer's instructions state otherwise 48 hours drying time shall elapse between successive applications of any primer and 24 hours between applications of all subsequent coats. The surface of bituminous paints shall be left at least 3 days before further handling. No paints in any coat shall be applied until the Engineer's Representative is satisfied that the surface is clean and dry, and that any previous coat is satisfactory and has hardened adequately. When a surface has been approved, it must be painted immediately. Paintwork shall be rubbed down with glass paper between coats. No paint shall be applied to a surface, which is damp, dirty or otherwise inadequately prepared. Final painting shall not be commenced until substantial completion of the Contract unless otherwise ordered. 7.7.5 Painting of Concrete and Brickwork Where specified to be painted, concrete shall be rubbed smooth and any cracks, blister holes and other imperfections cut out, filled and made good. The concrete and brick work shall be dried to the satisfaction of the Engineer before painting is commenced and drying time of at least 28 days shall be allowed after laying brickwork or stripping formwork from concrete. The surface shall be brushed to remove any efflorescence and then painted with the following : (a) (b) for interior brickwork and concrete, apply two coats of plastic emulsion paint over a coat of primer. for exterior brickwork and concrete, apply two coats of cement based paint over a coat of primer with a water repellent coat of siloconate solution of approved make. Paint to be used for the various items of work should be approved make and colour. It is imperative that the Contractor should obtain Engineer's permission in regard to the make and colour of paint that he proposes to use for the various items of work. The painting work shall be carried out as directed by the Engineer, keeping, however, in view the recommendations of the manufacturer.

Contractor

No. of Corrections

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Where painting with plastic emulsion is specified, all uneven surfaces shall be made up by use of putty of appropriate quality, after the surface has been thoroughly cleaned of all dust, dirt and sand papered. One primer coat and two coats of emulsion paint shall be applied. Workmanship shall conform to the requirements of IS 2395 (Parts 1 & 2). 7.7.6 Ironwork and Ungalvanised Steel work Structural steelwork shall be shot blasted to a "White metal" finish, and grease and oil removed prior to painting. Priming shall immediately follow blast cleaning and no cleaned surface shall be left unprimed for more than four hours. Only primers that chemically inhibit corrosion shall be used. Where the iron or steelwork is not in contact with raw or treated water the primer shall be red lead complying with IS 57. Where there is a possibility that the steel or ironwork may come in contact with water the priming treatment shall be non toxic, zinc chromate or equivalent. Where it is anticipated that further welding will be required, an approved welding primer shall be applied to the areas to be welded and reprimed with the main primer when welding has been completed. Primer coats shall not be less than 0.05 mm each. After erection all damaged areas shall be made good, and reprimed where the original coat has scraped or chipped off. If rust has spread under the primer the affected surface shall be cleaned down to bare metal to the satisfaction of the Engineer and then re-primed. Repainting shall be carried out as soon as possible after erection. If it is to be exposed to weather or condensation it shall receive two further coats of primer. Metalwork in intermittent or permanent contact with raw or treated water shall have two finishing coats of an approved coal tar pitch epoxy paint such as "Comastic" or "Epilux 5" by Berger Paints, or equivalent. The total coating shall be a minimum of 0.125 mm thick. After priming, iron and steelwork to have a decorative finish shall be painted as follows: (a) (b) interior work shall be given one coat of micaceous iron oxide paint, then one approved undercoat plus one coat of gloss paint. exterior work shall be as for interior work except that two coats of micaceous iron oxide shall be applied.

7.7.7 Galvanised Steelwork Newly galvanised steelwork shall be primed with an etch primer such as calcium plumbate. Steelwork that has been galvanised for a long period so that the surface has oxidised adequately to allow adhesion of undercoats, need not have an initial coat of etch primer. However, this decision shall lie with the Engineer. After priming, galvanised steelwork in constant or intermittent contact with raw or treated water shall be given two coats of an approved coal tar pitch epoxy paint such as "Epilux 5" by Berger Paints, or equivalent. The total coating shall have a minimum thickness of 0.125 mm. Protective coats for galvanised steelwork not in contact with water shall be : (a) (b) one coat of an approved micaceous iron oxide paint for interior galvanised steelwork. two coats of an approved micaceous iron oxide paint for external galvanised steelwork. The F432 line from I.C.I. Paints or similar approved would be suitable.

Galvanised steelwork not in contact with water shall be finished with at least one coat of gloss paint on top of an approved undercoat. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme Bituminous Surfaces

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Metalwork items that have been given a shop treatment of bituminous paint shall be painted with two coats of an approved anti-bleed paint before applying a coat of decorative finishing paint 7.7.9 Aluminum Surfaces Aluminum surfaces shall be worked cleaned, dried and thoroughly degreased before painting, by an appropriate solvent (such as one consisting of equal parts white spirit and light solvent naphtha). Flame cleaning shall not be permitted. The clean degreased surface shall be treated to ensure paint adhesion either by mechanical roughening, chemical etching, or etch primers or wash primers applied in strict conformity with the manufacturer's instructions or by other treatment approved by the Engineer. The pretreated surface shall receive a priming coat with an inhibiting pigment containing not less than 20% by weight of fine chromate or other approved chromate in suitable water-resisting vehicle. The priming coat shall not contain any copper or mercury compounds and it shall also be free from graphite and carbonaceous materials and shall preferably not contain any lead. A recommended priming coat consists of a tung-oil phenolic-resin which is pigmented with equal parts of zinc tetroxy chromate and red iron oxide. Unless otherwise specified, aluminum surfaces in contact with concrete, or resting on pads on concrete, shall be painted with two coats bituminous paint, and the concrete surfaces also shall receive two coats bituminous paint. 7.7.10 Wood Work Woodwork for painting shall be carefully rubbed down, treated with preservative and knotted, stopped and primed in the shop. Care shall be taken to ensure that priming is thoroughly brushed into every part of the surface and in particular at end grains, joints and notches where two coats are to be applied. Primers for wood shall be of a standard equivalent to, or better than "Aluminum Wood primer Sealer A519-3697" by I.C.I. Paints. After the woodwork has been fitted and all defects in the surfaces have been made good and reprimed, one coat of approved undercoat shall be applied to internal surfaces and two coats to external surfaces. An undercoat of quality equal to or better than "Dulux Undercoat A522 line" shall be used. Timber work shall be decoratively finished with one coat of finishing paint of standard equal to, or better than "Dulux Gloss Finish A365 line". Plaster work shall be rubbed down smooth and any cracks, blisters or other imperfections cut out and made good. The plaster work shall be completely dry before painting is commenced and any efflorescence on the surface shall be removed by dry brushing. Plaster work shall be sealed with an approved alkali resistant sealer such as "Plaster Sealer A572-PJ-0170" from I.C.I. Paints. After lightly rubbing down the sealer the surfaces shall be painted with three coats of emulsion paint of quality equal to or better than "Pentalite Emulsion Paint A383 line" from I.C.I. paints. 7.7.11 Galvanising Steelwork Galvanising shall be carried out in accordance with IS : 6159 and 2629. All rough edges and burrs shall be neatly filed off, all holes required are to be drilled, and all

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fabrication shall be completed before the work is galvanised. No galvanised metal shall be painted until the Engineer has inspected the coating. 7.7.12 Step Irons The Contractor shall supply and fix galvanised melleable iron step irons of the type shown in the drawings. They shall have a 110 mm tail. They shall be built walls truly level and in vertical lines as shown on the drawings or directed by the Engineer. 7.7.13 Access Ladders Access ladders shall be of mild steel and galvanised and painted as specified in Clause . Stringers shall be 60 mm x 12 mm flat spaced 375 mm apart. Rungs shall be 25 mm diameter at 250 mm centres turned to 20 mm diameter each and rivetted to stringers. Ladders shall be fixed at the top and the bottom and at intervals not exceeding 2 m by brackets of 50 mm x 10 mm flat, of such length that the rungs are not less than 200 mm from the wall, secured by galvanised ragbolts of an approved type. Brackets shall be fixed to the ladders by one 16 mm diameter bolt through each stringer. Ladders may also be fixed at the bottom by bending the stringers and bolting to the floor. 7.7.14 Handrails Handrails shall be provided on open sides of platforms, stairways and around all openings as shown on drawings. Handrails shall be of standard weight galvanised steel pipe of flush welded construction, ground smooth, using 32 mm nominal bore light class pipe provided with double rail, top rail about 1 meter above platform level and pipe posts spaced not more than two meters apart. Angle handrail posts shall be provided only if specifically called for in the Engineer's drawings. Smooth uniform curves and bends shall be provided at stair returns and also wherever required / specified. Posts connected to curb plates shall have a neat closure at the bottom and a 6 mm thick plate neatly welded to posts for attachments to curb plate. All necessary fittings including inner dowels at splices, brackets, bolts, bends, flanges and chains, where required shall be furnished by the Contractor. Open ends of all the pipe posts shall be plugged and welded. A minimum radius of 3 times the pipe diameter shall be provided at all points of direction changes in the handrail. The rate quoted for handrails shall be per running meter of completed hand railing including posts, fittings, etc. and shall also include galvanising and painting of the same. It shall be clearly understood that individual lengths of runners, posts, etc. will not be measured for purposes of payment. 7.7.15 Chequered Plates Chequered plates used shall be 6 mm thick or as indicated on drawings and shall be capable of carrying a minimum live load of 750 kg / sq. meter unless otherwise specified on design drawings. Chequered plates shall be fixed by 8 mm diameter candmium plated mild steel screws with counter sunk heads at a maximum spacing of 400 mm. Members supporting the chequered plates shall have matching holes tapped in them. The chequered plate pattern shall be approved by the Engineer. Chequered plates may also be required to be welded to the structural steel framing. The decision in this regard will be given by the Engineer. 7.7.17 Measurement of Painting The cost of any shop treatment and priming of surfaces shall be included for in the supply of the item concerned. Contractor No. of Corrections Chief Officer

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The requirements of Clauses 7.7 shall be measured on the basis of area of surface required to be painted, white/colour washed or distempered. The area of surface painted at Site shall be measured once only for the number of coats specified herein. Measurement shall be net with no allowance for boltheads, rivet heads or other protuberances. The Contractor shall include in his rates for painting pipework all coats of treating brackets and supports and in his rates for walls and ceilings, all costs for painting electrical conduit switch boxes and other small items needing different treatment to the surface on which they are fixed. All costs of making good damaged surfaces shall be included in the rates. Except where otherwise stated, rates entered in the Bill of Quantities shall allow for the supply of the paint.

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GENERAL SPECIFICATIONS

GS 1 Sand and Metal Sand and coarse aggregate (metal) shall be stored separately on site on hard ground so as to keep them free from foreign materials such as soils, clay, glass etc. In case of machined crushed metal separate depot shall be prepared for different sizes of metal and suitable proportion to form dense mix as directed by the M.C shall be taken from these different sizes of metal. GS 2 Form Work 2.1 The wooden shuttering planks shall be not less than 40 mm thick or such other thickness as may be allowed by the Engineer in charge for a particular job. The entire form work, whether of steel, plywood or wooden planks, shall be very strongly proposed and braced with sufficiently strong vertical and horizontal members and the entire supporting structure shall be of sufficiently horizontal members and the entire supporting structure shall be sufficiently strong to take up the load of concrete and all stresses it may be subjected to, without any deflection. The Contractor shall be wholly and fully responsible for any defects in the entire form work and its supporting structure. The form work shall be very smooth and entirely free from any dust particles direct and its inner surface shall be oiled for the easy facility of form removal and shall be watertight.

2.2

GS 3 Reinforcement 3.1 The Contractor has to procure it from open Market at his cost. The bars shall be scrapped thoroughly for removing any scales, rust, etc. before use in work. Bars that may be found defective in any way shall not be allowed to be used. The reinforcement is to be fabricated and placed in position as per the M.C. design to be intimated to the Contractor during execution from time to time. The hooks, laps, anchors, cover, etc. shall be as directed by the M.C. The Contractor has to place in position the reinforcement as directed and to secure it by binding wire to be provided at Contractors cost. Any additional reinforcement provided by contractor in addition to M.C.'s design and direction shall not be measured and paid for. 3.2 To ensure that the minimum cover require for slabs, beams, etc. is provided. Separators of precast or cast in situ CC block with wires embedded shall be used and shall be tied to the reinforcement with wires. Between 2 or more layers of reinforcement, separators, of 200 mm or 25 mm size bars as directed shall be used duly tied. The separators of M.S. bar piece shall not be admissible for payment. The GI binding wire shall not be admissible for payment. When Contractor has to bring steel then it shall be only tested one and Contractor shall produce the manufacturers rolling mills test certificate without which it shall not be accepted. Further the Contractor shall arrange to get tested any samples from steel brought at site in a laboratory at his cost, and result should be submitted to M.C. Defective steel shall be rejected.

3.3

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Tender Document for Bhokar Water Supply Scheme GS 4 Mixing 4.1

196

Good clean water shall only be used for mixing. Arrangements for bringing such water shall be done by the Contractor at his cost. The amount of water to be used shall be as directed by the Engineer-in-charge. on the bases of correct water cement ration. The water measuring apparatus shall be provided by the Contractor at his cost. For R.C.C. reservoirs and for other works which in the opinion of the Engineer in charge are important the concrete shall be only machine mixed. The mixing shall be continued for at least 8 minutes after all materials and water are placed in the drum which shall revolve for 14 to 18 revolutions or as specified by the manufacturers. The mixer for this purpose shall be brought by Contractor at his cost and the M.C. does not take any responsibility for supply of M.C.'s mixer which could be conveniently spared to the contractor, that will be issued to him on hire or contractor's request, as per MJP's rules in force from time to time. If as a result of break down of mixer during concreting, hand mixing has to be resorted to temporarily. Only such work which is considered absolute essential by the Engineer in charge shall be allowed to be done by hand mixing and the entire operation of hand mixing and precaution thereof shall be taken as will be directed by the Engineer-in-charge. For hand mixture for sufficient time till it is of uniform colour. The required quantity of aggregate shall then be added and the mixture again turned over for at least ...... times. The required quantity of water shall then be added gradually through rose pieces attached to the can until process of turning is in progress and till is of uniform consistency where such hard mixing is allowed as a result of area requirement and no extra payment for this excess cement shall be admissible. For works other than mentioned in above para, hand mixing will be allowed and in such cases, cement to be used shall be as per standard requirement only. Normally the standard cement consumption will be as under : for one cum of concrete 1:2:4 (M-150) 6.27 bags 1:1.1/2:3 (M-200) 7.9 bags 1:3:6 (M-100) 4.42 bags

4.2

4.3 4.4

For any other mix the cement consumption shall be as decided by the Engineer in charge. The consumption as mentioned above shall be for the gross RCC column actually cast. The cement for finishing , rendering cement, wash, etc. shall be in addition to above. GS 5 Concrete Laying 5.1 The forms shall first be lightly moistened before laying concrete. The concrete shall be placed in position within 20 minutes after adding water to the mix and shall be slowly deposited in its place and not thrown or dumped from a height shall be placed in uniform layers. For vertical walls or water retaining structure, water stoppers shall be provided. For columns the concrete shall be laid in maximum 1.2 M height at a time. For vertical walls of reservoir it shall be laid in maximum 0.6 M height only at a time.

5.2

Contractor

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Tender Document for Bhokar Water Supply Scheme GS 6 Tamping, Ramming and Consolidating 6.1

197

For all RCC Reservoirs and other works which are considered by the Engineer in charge to be important mechanical vibrators shall invariably be used by the Contractor at his cost. The Contractor shall provide at least 2 vibrators in good working condition, so as to have one as a stand-by and to prevent interruption in work. The concrete being laid shall be vigorously vibrated laying and also loaded by bars where vibrator cannot reach so that dense and complete filling is assured. The Contractor shall make his own arrangements for procuring vibrators at his cost and the M.C. does not guarantee that they will be supplied on hire. For all other works consolidation and tamping shall be manual labour by rodding vigorously by M.S. bars, throughout for a sufficient time and in such manner as directed by the Engineer-in-charge. Adequate number of labourers shall be set apart specifically for tamping and ramming with relievers. The efficiency of tamping and consolidation shall be judged by absence of any air pockets and absence of honey combing any defective consolidation and tamping shall be entirely on Contractor's risk and costing will have to be entirely pulled down if so directed and redone properly entirely at the cost of the Contractor.

6.2

6.3

GS 7 Curing 7.1 All RCC work will be watered and kept constantly wet for 23 days after initial set casting by means of wet gunny bags and ponding as directed by the Engineerin-charge. This operation shall start immediately after initial set of the concrete. Should the Contractor fail to water the concrete - continuously, it will be done immediately at Contractor's cost. Removal of Form It shall be generally as under, subject to the written approval and modification by the Engineer-in-charge. Column and Beam Sides Vertical Walls Bottom of Slab and Domes Bottom of Beams Bottom of Beams of Span 4.5 M and above Bottom of Placing CC GS 8 Inspection The work of each category of operation i.e. completion of form work placing reinforcement, concreting, removal of form, etc. must be got inspected by the Junior Engineer before commencing and succeeding operation in case of RCC elevated reservoir and major RCC jobs. In all cases, however, before the concrete is laid it must be got inspected and approved by the Deputy Engineer to concreting shall be Contractor No. of Corrections Chief Officer 3 Days 6 Days 10 Days 14 Days 21 Days 3 Days

7.2

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commenced with approval of the Deputy Engineer. In case of RCC reservoir and other major works concreting must be done in presence of Deputy Engineer himself. In other case, it shall be done in presence of junior Engineer. In case of failure to comply with above specifications, the work is liable to be pulled down if directed for any work which is done contrary to specification and no payment thereof shall be admissible. GS 9 Finish and Quality of Concrete 9.1 The RCC work cast shall be of dense mix, homogenous without any honey combing true in size alignment and shape. Any defective work shall not be entitled for full tendered rates for payment and if the defects are major no measurements and payment are admissible and Contractor shall have to pull down such defective work and redo at his cost. The decision of the Engineer in charge regarding such defective work and the decision, viz. pulling it down or reducing rates as may be necessary shall be final and binding on the contractor. All RCC work shall be finished as directed by the Engineer in charge. It should be clearly understood that the finishing is not meant to cover the casting defects but only to give a smooth appearance. In case of RCC reservoirs and other major RCC works Contractor shall not commence finishing unless and until Engineer-in-charge has inspected the casting of concrete after removal of form and has satisfied about its quality failing which it shall be regarded that casting was defective and action deemed fit as per clause (11) 1 above will be taken since finishing has to commence immediately after removal of forms. The forms removal in RCC reservoirs and other major work shall be done in presence of Deputy Engineer. 28 days test : 1:2:4 150 Kg/cm2 1:1.1/2:3 200 Kg/cm2

9.2

Cube casting acceptance of concrete will be as specified in IS 456 - 1964 and relevant ISS. Unacceptable quality concrete shall be demolished and redone without any extra cost by the contractor. The Engineer in charge at his discretion consider substandard work at a suitable reduced rate, provided such weak concrete is restricted to such members and in such quantities, which in the opinion of the Engineer in charge will not endanger the safety of the structures. Engineer in charge's decision in such cases shall be final and binding on the contractor. 9.3 Surfaces not in contact with form work and not subject to any plaster shall be finished by a float to present a smooth and uniform appearance. Surfaces which are in contract of form work but for which no plastering is provided as per plan and estimate shall also be finished smooth, and sand faced as directed. Surfaces for which plastering is to be done, as per separate provision of plastering plans and estimates, shall immediately on removal of forms, be roughened for bond by a pointed tamping tool. In case, whether would be specified in the tender item or not the finish shall be such as to match with the rest of the structure to present a harmonious appearance. It shall consist of 3 coats of cement, rendering, plastering float finished faced, etc. as per the requirement at site and as directed by the Engineer in charge and Contractor shall have to do it at his own cost. Failure to No. of Corrections Chief Officer

9.4

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do proper finishing as directed shall result in payment at reduced rates only to the Contractor and the decision of the Engineer in charge in this respect shall be final and binding on the Contractor. GS 10 Testing 10.1 All structure meant to hold water shall be rested for water tightness test at Contractor's cost, by filling them to their desired level. The water tightness test shall be considered satisfactory when the fall in water level after the container is filled to the FSL is not more than 5 mm/25 hours and there is no sweating from outside or bottom whatsoever. 10.2 Contractor has to make his own arrangements for water for testing at his cost and these arrangements shall be such that immediately after initial setting of plaster, the containers are filled with water. After the satisfactory water tightness test the container shall be kept constantly filled with water at Contractor's cost till the completion of work. 10.3 Till satisfactory water tightness test is given by the Contractor, at his cost, to the satisfaction of the M.C., only 90% tendered rates shall be admissible for payment for RCC concrete items. 10.4 In case of RCC elevated reservoirs and other major RCC works from batches or concrete mix actually being laid, testing cubes shall be cast periodically as directed by the M.J.P, in presence of the Deputy Engineer-in-charge and these cubes shall be got tested after they have attained their full strength, from a suitable testing laboratory. The M.C.'s representative shall arrange for taking test cubes, sending them to laboratory and obtaining test results, at full cost of Contractor. The charges of this viz. moulds, labour for casting, materials, conveyance charges to and from the laboratory including TA of staff members and laboratory test charges, etc. are included in the tender rates and they shall be recovered from Contractor's bills. The ultimate compressive stress as revealed from these tests shall not be less than 28 days test 1:2:4 150 Kg/cm2 1:1.1/2:3 200 kg/cm2

Cube casting acceptance of concrete will be as specified in IS 456-1964 and relevant ISS. Unacceptable quality concrete shall be demolished and redone without any extra cost by the Contractor. The Engineer in charge at his discretion consider substandard work at a suitable reduced rate, provided such weak concrete is restricted to such members and in such quantities, which in the opinion of the Engineer in charge will not endanger the safety of the structure. Engineer in charge's decision in such cases shall be final and binding on the Contractor. GS 11 Measurements 11.1 The Measurements shall be the unit as mentioned in the Schedule `B' and break- up schedule. 11.2 Mode of measurements shall be :a) Columns : Height from top of footing to bottom of beams shall be measured as columns. No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme b) c) d) Braces for columns shall be measured as net between column faces.

200

For straight beams, duly ribs between column top and slab bottom surface shall be measured to beams and rest in slabs. For ring beams the full section of beams from bottom to top shall be measured in beams and quantities laying outside the full beam section in beams. Slant walls, slabs, etc. as the case may be shall be measured in the respective slant wall vertical wall, flat slab, etc. as the case may be. Vertical walls shall be measured for net quantity outside columns, beams, slabs. No deduction shall be made for reinforcement in RCC work.

e) f)

11.3 The measurement under RCC works for net dimensions cast as directed without any allowance for rendering, finishing, etc. GS 12 UCR Masonry, GSRs In case of UCR masonry reservoir, relevant specifications for ESR and other items shall be followed. the work shall be carried out as per type design. GS 13 Specification for Masonry viz. UCR/CR, Brick Masonry Khandki Facing, etc. 13.1 The masonry shall be either UCR/CR Khandki facing, BB Masonry, etc. as specified in the respective tender items. 13.2 For stone masonry either UCR/CR or Khandki facing, with 1:4 proportion cement mortar, which has to retain, the percentage of mortar shall be between 40% to 45% of the gross built-up masonry and in no case less than 40%. The cement to be used in masonry shall be on the basis of this percentage. If the masonry is constructed with less percentage of the mortar than specified above and if in the opinion of Engineer in charge it is not suitable retain water pressure, it shall have to be dismantled and redone at Contractor's cost with correct percentage of mortar. 13.3 For all other masonries viz. UCR/CR/BB, etc. the percentage of mortar shall be as per P.W.D. Hand Book Specifications and cement to be used shall be based on these percentage. 13.4 For CR Masonry, khandki facing masonry etc all courses shall be of equal height, to be specified by the Engineer-in-charge and only one row of khandkies shall be allowed in one course. 13.5 Tender rates of masonry item, unless otherwise mentioned specifically in the tender items, shall include scaffolding, watering, curing and cement pointing in CM 1:2 to the exposed faces, where necessary and as directed. 13.6 For masonaries meant for retaining structures, the Contractor shall give a satisfactory water tightness test at his cost to the satisfaction of M.C. Till such a satisfactory water tightness test is given, only part rates (90%), as directed by the Engineer in charge shall be admissible for payment and the decision for such part regarding reduced rates, shall be final and binding on the Contractor. It shall be Contractor's responsibility to give the water tightness test and he may use standard waterproofing compounds at his cost in the mortar. 13.7 In all other items viz. materials like sand, stones, joints, headers, khandkies, etc. the PWD Hand Book Specifications (latest edition) and specifications given in standard specification Book (Red Book) shall apply.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

201

13.8 The wall of masonry should be truly vertical on both faces or should be truly as specified grade. 13.9 The height of masonry should not be raised at more than 1 M per day. GS 14 Doors, Windows CCTW Doors, Windows, Cupboards, etc. 14.1 Sizes shown on drawing are clear opening in masonry and not the shutter's size. these sizes shown on drawings are, therefore, inclusive of required frame sizes and doors, windows, etc. and shall be manufactured, accordingly. If sizes bigger than shown in drawing are manufactured, as instructed specifically in writing they shall be measured and paid for accordingly. 14.2 The work shall be executed as per the size of frame thickness of shutter type viz. plain planked panelled, glazed, etc. and fixture, etc. as described in tender item. Iron bars for windows ventilators are to be provided if specifically mentioned in the tender item at Contractor's cost. Specifications. in PW standard specifications shall be applicable. 14.3 The design shutters and quality of wood shall be got approved from the Engineer-in-charge before manufacture. The CCTW to be used for wood work shall be uniform in substance straight, free from large deed knots, flows flanks. The work shall be done as per specification of P.W.D. hand books latest edition. The joints shall be perfect. The work be done as per specification Book (Red Book) published by B&C Department. 14.4 Parts of wood embedded in masonry shall be painted with the tar. The frames of doors, windows, ventilators, etc. shall have proper holdfasts embedded in masonry. 14.5 Whenever iron bar is to be provided as per tender item the rate thereof is included in tender item. The pointing shall be done as prescribed in tender item. No painting, however, shall be permitted till the wood work is approved by the Engineer-in-charge. 14.6 Any substandard work not conforming to the specifications shall be paid at reduced rates only and also liable to the outright rejected and Engineer in charge's decision in such cases shall be final and binding on the Contractor. 14.7 The mode of measurement shall be on area units as mentioned in Schedule `B'. GS 14 A Steel doors, windows and ventilators 14 A.1 General The specification lays down the requirements of providing the steel doors, windows and ventilators shall confirm to I.S. 1038 - 1975 its latest revision. 14 A.2 Materials Rolled Steel Sections : They shall be manufactured from steel conforming to I.S. 1977-1962 specifications for structural steel. They shall be free from rolling defects and shall be suitable for punching and welding. Coupling Sections for Non-modular Opening : They shall be manufactured from mild steel plate 1.6 mm in thickness conforming to the dimensions as given in figure 84 or I.S. 1038 - 1975 as specified in the Item

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 1. Glass Panels

202

Glass panels shall weigh at least 7.5 kg/sqm. and shall be free from flaws, specks and bubbles. All glass panels shall have properly squared corners and straight edges. The size of glass panels shall be as specified in the item. Workmanship The doors windows, and ventilators shall be fixed in true line and level, to the entire satisfaction of the Engineer-in-charge. The damaged works shall be made good to the level of original works. Screws Screws threads of machine screws used in manufacture of steel doors, windows and ventilators shall conform to the requirements of I.S. 7362-1962. 14 A.3 Mode of measurement and payment The item shall include a) b) c) d) Providing and fixing of steel frames and shutters to line and level. Fixing of required fixtures and fastenings of approved quality. Glazing or paneling with specified materials such as glass or steel sheets etc. in workman like manner. Painting the steel sections and portion of the doors windows and ventilators with three coats of synthetic enamel paint of approved quality and shade. The item will be measured and paid on square meter basis. GS 15 Plastering 15.1 12 mm , 20 mm and 25 mm cement either plain or waterproof. The plastering items shall be executed in thickness and cement mortar of proportions as detailed in respective tender items. Similarly, the plastering shall be either ordinary or waterproof as specified in tender item. 15.2 In case of waterproof plaster, standard and approved waterproofing compounding shall be mixed in cement mortar in required percentage as directed and then the plaster is applied. Unless and until the water tightness test is given by the Contractor to the satisfaction of the M.C., only part rates shall be paid. 15.3 The finishing shall be either smooth or rough cast as may be directed by the M.C. unless otherwise specifically mentioned in the tender item. 15.4 Neeru finish wherever directed by the M.C. shall be done from inside at no extra cost. 15.5 Specification given for this item in Standard Specifications Book (Red Book) published by B&C Department shall be followed 15.6 Curing and watering shall be done as directed and plaster shall be in alignment and level. Any substandard work is liable to be rejected and shall have to be redone at Contractor's cost. Sand to be used shall be of approved quality only. 15.7 Cost of all scaffolding is including in the tender rate. GS 16 Flooring - IPS Flooring 1.1/2" thick cement concrete 1:2:4 shall e provided for IPS flooring. The size of metal shall not be more than 1/2" and it shall be properly graded. A thin coat of very fine Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

203

plaster shall be provided on top to give it a smooth finish. The marking of false grooves to surfaces as directed includes the cost of labour. GS 17 Shahabad Stone Flooring 17.1 Stone shall be specified in tender item. The Shahabad stones shall be square with suitable dimensions and of approved quality only. All stones shall be of the same size. They shall be either rough Shahabad or polished Shahabad as mentioned in tender item. If there is no such mention, they shall be rough shahabad only. These shall be set in 1:2:4 CC and joints properly finished in CM 1:1 pointing. The CC bedding below 10 cm thickness (M-100) is included in the item. 17.2 All other specifications of P.W.D. Hand Book latest edition and specifications given in Standard Specification Book (Red Book) published by B and C Department shall apply to the above flooring items. GS 18 Painting 18.1 The work shall be carried out as per the description of the tender item and as directed by Engineer-in-charge. It shall be whitewashing, distempering and / or snowcem painting. Shade and make shall be as directed by the M.C. and for decorative purpose, M.C. may ask for different shades to be provided for different components or different parts of the same component which the Contractor shall have to do within his tendered rate only at no extra cost to the M.C. Cost of priming coat as directed, scaffolding, etc. is included in the tender item. The work shall be executed as per the specifications of P.W.D. Hand Book latest edition and specification for painting in Standard Specification Book (Red Book) published by B and C Department. GS 19 Providing and Fixing M.S. Ladder Ladder shall be manufactured as per the details provided in the tender item. All the materials and labour required for executing the item are to be provided by the Contractor at his cost. The Ladder shall be properly fixed at site as directed and the bottom and top shall be properly embedded in 1:2:4 CC block as directed at Contractor's cost. In order to have stiffness to the ladder, cross supports or stiffeners at suitable intervals as directed, shall be provided of suitable M.S. flats duly embedded in walls or welded to the ladder. The specifications for this item as given in the Standard Specification Book (Red Book) published by B And C Department shall be followed. GS 20 GI Hand Railing The item shall be executed as specified in the tender item and as shown on drawing. The vertical supports shall be properly fixed at base either in masonry or concrete by nuts and bolts duly embedded in the form, right anchorage holes in the vertical support to pass GI piping in it or welding to fix the GI pipes to support together with MS cleats, etc. are included in this item. The GI piping shall be provided along with required specials, fixtures, fastenings, etc. and GI collars or welded as per necessity. The diameter of GI piping, number of rows, size and type to vertical posts together with its center to center distance height, etc. shall be as specified in the tender item in absence thereof as per the M.C.'s type design in force. The rate shall also include 2 coats of approved shade oil paint. Cost of all the materials which shall be procured by the Contractor, labour involved for executing this item is including in tender item. The measurements and the payment shall be on the basis of lengths in running metres occupied by the completed railing assembly in plan. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme GS 21 Providing, Fixing RSJ and Other Structural Steel Works

204

21.1 This item covers fixing MS/RS girders, MS angle, channel, flats base plates, gusset plates, clear, bracket, etc. and other accessories as per requirement and as directed and fabricating the assembly by cutting, drilling holes, etc. and erecting and fixing item at site with necessary rivetted or welded joints, fixtures with nuts and bolts, etc. Wherever necessary as directed. Structural steel works materials shall be procured by the Contractor from open market at his cost. The item includes 3 coats of oil paint of shade as directed to all structural work. 21.2 All above operations including cost of material and labour thereof are included in the tender item. The measurement and payment shall be on the weight basis in the unit as mentioned in Schedule `B', actually erected at site as directed shall be admissible for payment. RSJ channels, angles, flats, gusset plates, brackets, base cleats, packing pieces actually used as directed shall be admissible for payment but not the rivets, nuts and bolts, etc. The rivetted or welded joints or fixing with nuts are included in the tendered rates. The specification for this item given in Standard Specification (Red Book) published by B&C Department will be followed. GS 22 Murum filling, Bedding etc. 22.1 When tender item provides that murum available from excavation is to be used free of cost, whatever murum that is available and suitable from excavated stuff shall be used by the contractor shall be used by the contractor free of cost. 22.2 The murum filling or bedding is to be done in 15 cm to 20 cm thick layers, watered and duly consolidated by hand rammers as directed. GS 23 Rubble Filling - Providing and Packing Rubble Filling, etc. 23.1 The rubble shall be properly hand packed with murum blindage in 20 cm thick layers as directed. Unless otherwise specifically mentioned in the tender item of the cost of rubble is included in this item, and if rubble is available from excavation, the same shall be used by the contractor after getting approved the quality of rubble selected from the excavated stuff by the Engineer-in-charge. This rubble is considered to be issued free of cost for use on the work only. 23.2 This shall be as per specification of P.W.D. (Hand Book) and as directed by Engineer-in-charge. Only trap stone shall be used other than the specification for this item in Standard Specification Book. GS 24 Maintaining Water Supply Scheme for Three Months 24.1 On completion of scheme, the Contractor should commission the scheme to its rated capacity, including cost of all labour items, attending execution defects noticed, including cost of material and labour for above period till the time the concerned Village Panchayat takes over the scheme whichever is earlier. The period may extend upto six months if Village Panchayat does not take over the scheme. 24.2 The Contractor should employ necessary staff such as operator, valveman. It should be the responsibility of the Contractor to see the regular supply is maintained which should be disinfected by TCL and the Village Panchayat is made aware of day-to-day maintenance. The running charges exclude the cost of TCL and cost of electrical bills. The defects noticed during this period, arising out of defective workmanship should be attended by the Contractor, without any extra cost.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

205

24.3 The Contractor should maintain necessary log book of pumping and chemical dose etc. up-to-date. If the Village Panchayat accepts the scheme earlier than 6 months, the joint inspection of the committee members shall be arranged, as decided by the Engineer in charge, and regular handling over note shall be signed by the concerned authorities. The responsibility of the Contractor shall cease only after signing of such. GS 25 M.S. Rose pieces The rose pieces shall be fabricated out of 10 mm thick M.S. plates. The straight diameter shall be 1+ times the diameter specified in the schedule `B'. The holes to be drilled in strainer portion shall be of 12 mm diameter at 27 cm center to center and shall be staggered. The inside & outside surfaces of the rose piece shall be applied with three coats of anticorrosive oil paint. The item includes cost of all materials & labour required for the work. and this item will be executed as directed by the Engineer-in-charge. The mode of payment shall be on weight basis. GS 26 Construction of Pump house on Jack well & sump. a) when V.T. pumps are to be installed, the height of pump house & corbel top shall be as under i) Sr. No. H.P. of pumps single floor Height between pumps floor to corbel top 5.0 m 5.5 m 5.5 m 5.5 m Height between corbel top to corbel top to soffit of roof slab 1.50m 1.50m 2.00m 2.50m Total height of P.H. from pump floor to soffit of roof slab 5.5 m 6.5 m 7.0 m 7.5 m 8.0 m

1 2 3 4 5

upto 50 H.P. 51 to 150 H.P. 151 to 300 H.P. 301 to 500 H.P. 501 & above ii)

Double Floor Two floors shall be constructed in the pump house shen delivery pipe dia. exceeds 350 mm. The height of pump house shall be as under:

Pump floor to panel floor Panel floor to corbel rop corbel top to soffit of roof slab b) Sr. No.

-

2.25 to 2.5 m 5.00 m 2 m to 2.50 m

Whereas centrifugal & submersible pump sets are to be installed, the height of pump house shall be decided as under Height between pumps floor to corbel top Height between corbel top to corbel top to soffit of roof slab 4.0 m 1.5 to 2.00m 2 to 2.50 m

H.P. of pumps

1 2 3

upto 50 HP 150 to 300 HP 301 & above

3.50 m 4.0 m

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Silt pocket of 1.5 to 2 m shall be provided in the jack wall GS 27 Approach bridge The width of approach bridge to pump house shall be provided as under a) upto 100 HP pumps - 2.5 m (excluding space required for rising main) b) for 101 HP & above pumps - 3.50 m (excluding space required for rising main)

206

If the raw water rising main is of P.V.C., the same should be provided of C.I./D.I. of suitable dia & class on the bridge portion. GS 28 The beams supporting pumps shall be designed with considerations of dynamic load of pumping machinery as under: a) upto 100 HP pumps b) above 100 HP pumps i) ii) iii) Bowl assembly / pumps Motor Discharge head frame, sole plate columns assembly etc (including weight of water in column assembly) Total dynamic Load = = Dead load x 1 (i) + (ii) + (iii) - In consultation of Deputy Engineer (Mech) - In consultation of EE (Mech) = = Dead load x 3 Dead load x 3

Dynamic load shall be computed as under

GS 29 Compaction of subgrade of road This item shall be executed as per specification No. RD -35 of red hand book. The rolling for sub-grades shall be done 3 times i. e. after laying of soling & murum over it, after laying of 60 mm size over size metal & murum over it, and after laying of 40 mm size metal & murum over it. For every time rolling operation, payment on sq. m basis is payable.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme DETAILS OF RESPECTIVE I.S.S. AND APPROVED MAKES FOR MATERIAL TO BE USED FOR EXECUTION OF WATER SUPPLY SCHEMES LATEST VERSION OF ISS SHALL BE REFERRED Material ISS No. Approved make

Cement Tor Steel MS Round Bar CI Pipes 26(a) 1786 (Fe415) 432 (Part I & II) / 1982 1536/1989 Approved manufacturers Approved manufacturers Approved manufacturers Firms on Rate Contract of D.G.S. & D S.S.I. units registered with Government of Maharashtra and holding valid BIS license. Manufacturers holding valid BIS license

207

No. 1. 2. 3. 4.

5.

AC Pipes and CID Joints GI Pipes

1592/1989 8794/1978 For pipes 554/1975 For thread 1239/1990 IS 4985/1988

6.

7.

PVC Pipes and PVC Specials

SSI units registered with Govt. of Maharashtra, and holding valid BIS license Makes approved by M.C. Makes approved by M.C.

8.

Sluice Valves 50 to 300 mm dia. Above 300 mm dia.

780/1984 2906/1984 GNK Catalogue Firms approved by M.C. under letter no. MWSSB/1091/33/Store/ 5284 dated 17.7.1992 1538/1960 5531/1969

9.

Air Valves

Makes approved M.C.

10.

CI Specials for CI pipes CI Specials for AC pipe Tyton rubber rings Reflux Valves

Manufacturers approved by M.C. Manufacturers approved by M.C. Approved manufacturers Approved manufacturers

11. 12.

5382-1985 12820-1989 IS-5312 (Part I) 1984 13282/1992

13.

Jiffy Mech. Joints

Manufacturers approved by M.C.

Notes : 1. In case of cement and steel, Contractor shall submit manufacturer's test certificate. However, samples of the materials supplied by the Contractor will be tested by the M.C. from Govt. Engineering/Recognized Institutes at contractors cost. 2. All types of pipes i.e. CI/DI/PVC/AC/PSC/MS/GI, etc. shall be tested by EIL, SGS or RITES before dispatches from Manufacturer's places at Contractor's cost. 3. The Contractor shall purchase A.C./PVC pipes, C.I.D. joints at RC rates from any RC holder SSI unit of his choice through MSSIDC only.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme REFERENCE OF TECHNICAL SPECIFICATIONS Sr. Short Description of No. Tender Items 1. Excavation in all sorts of material Plain Cement Concrete

208

Specifications reference from book of Standard Specifications of Govt. of Maharashtra (Red Book) Sp. No. B-1 on Page No. 24 to 28, Spn. IDS-1

2.

Sp. No. B-6 on Page No. 33 to 38 of Volume I and Bd-EP No. 287 to 291 of Volume II Spn. GS -1 to GS - 11 Sp. No. B-9, Page No. 55 to 60 of Volume I and BH and Page of Volume II Spn. GS-12 Sp. No. Bd, A.P. No. 262 to 265 of Volume VI, IDS-6, GS-22 Stresses as per IS-4561976 and Sp. No. B-10, Spn. GS-3

3.

Masonry Work (Stone Masonry) Murum Bedding

4.

5.

M.S. Reinforcement Grade II in Tor Steel (Fe415) CC 1:2:4 proportion of 1:1.1/2:3 Proportion for RCC work to 309 and ISA 456-1976. Spn. GS - 1 to GS-11 B.B. Masonry Work Spn. GS-13 Dewatering Cement Plasters Whitewash and Colour Washing Oil Bound Distemper, etc. T.W. Doors and Windows

6.

Page No. 62 to 65 of Vol. I, IS 3370 Part I and Part II, Sp. No. Bd -F- P No. 297

7.

Sp. No. 88 (b), Page No. 42, Volume I,

8. 9. 10.

Sp. No. BR-4 Page No. 103 to 104. Sp. No. B-11, Page No. 60 to 66, Spn. GS-15 Sp. No. BD-P-1, Page No. 411 to 412, Spn. GS-18

11. 12.

Sp. No. BD-P- ii P.S.P. No. 431, 414, Spn. GS-18 As per Sp. No. B and C7, Page No. 418 and Sp. BD-1-4 Page No. 479, Spn. GS-14 Sp. No. Bd-C-6, Page No. 277 Spn. GS-21 Sp. No. Bd-N-1, Page No. 379 Spn. GS-16

13. 14.

Structural Steel Rough Shahabad Stone Flooring Lowering, Laying and Jointing of all types of pipes Road Surface Boxes

15.

As per Departmental Specifications, IDS-7, IDS-8, IDS-9 As per type design and Department Specifications Spn. IDS-16

16.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Sr. Short Description of No. Tender Items 17. B. B. Masonry Chamber

209

Specifications reference from book of Standard Specifications of Govt. of Maharashtra (Red Book) As per type design and Department Specifications Spn. IDS -11 As per type design and Departmental Specifications Spn. IDS-10 As per type design and Departmental Specifications Spn. IDS - 13 As directed by the Engineer-in-charge, Spn. IDS-2A Spn. IDS-17 As per Departmental Drawing and Designs & Specifications As per ISS and IS rules Spn. IDS-17 Sp. No. Bd-V-19, Page No. 559 Spn. GS-20 Sp. No. BR-51 (a), Page No. 136 and 139 Spn. GS-20 Spn. IDS-2

18.

Fixing of Valves Air Valves, etc. Constructing Standpost

19.

20.

Refilling

21. 22.

Storage Reservoirs Fixing of Inlet, Outlet, Overflow and Washout Lightning Conductor M.S. Ladder G.I. Pipe Hand Railing with RCC bars Providing, lowering, laying slotted pipe gallery Providing and fixing weep holes Dapuri type steps Providing and fixing CI MH frame and cover Plastering IPS flooring Rubble Filling Maintaining of Scheme Providing earth work for embankment Supplying 15 & 23 cum soling

23. 24. 25.

26.

27. 28. 29.

Spn. IDS - 4 Spn. IDS-5 Spn. IDS-15

30 31. 32. 33. 34.

Spn. GS-15 Spn. GS-16 Spn. GS-23 Spn. GS-24 Sp. No. Rd - 13 page 194

35. 36. 37.

Sp. No. Rd-19 Page 197

Supplying 60 mm over size metal Sp. No. Rd- 20 page 200 Supplying 40 mm size metal Sp. No. Rd - 22 page 201

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Sr. Short Description of No. Tender Items 38. Supplying soft murum 39. 40. 41. 42. Laying 15 to 23 cm rubble soling Spreading soft murum Spreading 40 to 60 mm metal Compacting subgrade/soft murum 60 mm oversize metal 40mm metal layers. Providing & fixing guard stone in C.C. M-8

210

Specifications reference from book of Standard Specifications of Govt. of Maharashtra (Red Book) Sp. No. Rd-24 page 203 Sp. No. Rd- 27 page 204 Sp. No. Rd-28 Page 205 Sp. No. Rd-29 Page 205 Sp. No. Rd-35 page 209

43.

Sp. No. Rd - 70 Page 244

Note : Specifications mentioned above are for reference only. Other relevant specifications shall be referred.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme PUMPING MACHINERY

211

The basic data regarding the scheme and important points in respect of Department's specified requirements are given below. The tenderer has to quote suitable pump to match these requirements. Any deviation and alteration to these specified requirement will not be considered and tender will be rejected. BASIC DATA VERTICAL TURBINE PUMPING MACHINARY SUB WORK NO.8 : RAW WATER PUMPING MACHINERY 1) 2) 3) 4) 5) 6) 7) Bottom level of jack well. Strainer level required. Highest water level in the jack well. Pump base floor level. Hump point on the rising main if any. Discharge point level. DETAILS OF RISING MAIN Inner diameter (up to hump point) CONTRACT LIMIT 142.82 300 mm dia. 100.00 86.55 87.00 R.L. R.L. R.L. R.L. R.L. R.L. R.L. Pipe Material D. I. K-9

Minimum suction level encountered. 87.55

Length of rising main 4430 m Common header pipe upto duck foot bend out side pump house and it's connection to rising main. SPECIFICATION AND REQUIREMENT OF DEPARTMENT VERTICAL TURBINE PUMP WATER LUBRICATED TYPE 1 No. 1 No. 87 cum/hr 70 m 1475 RPM (Not less than) 150 mm dia. FLANGED TYPE (Not less than) 36.15 mm Dia (Not less than) 36.15 mm Dia (Not less than) 13.00 m mm Dia

1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12)

Type of pump required. Pumps in operation. Stand by pump. Duty discharge of each pump. Duty head required. Speed. Column pipe size required. Type of column pipe. (IN PIECES OF 1.5 Mts) Impeller shaft size. Line shaft size. Shaft enclosing tube size (If applicable) Total suspension length of column assembly including bowl assembly & strainer Pump's operating range. Pump's shut off head

(Exclusive of losses in column pipe & discharge head)

13) 14)

77 m to 53 m (Not less than) 82 m

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 15) 16) 17) 18) 19) Pump's bowl efficiency. Number of stages. Delivery valve size required. Common header pipe size . DETAILS OF DRIVE (Not less than) 75% (Not more than) 7 Nos. (Not less than) 150 mm Dia (Not less than) 200 mm Dia VERTICAL HOLLOW SHAFT

212

Squirrel cage induction motor, conforming to IS 325, having continuous rating, suitable for operation on 415 Volts ±10%, 3 Phase, 50 Hz A.C. Supply, with "F" class insulation and temperature rise limited to class "B" insulation. The motor should be having synchronous speed of 1500 RPM. Screen protected drip proof type. Motor kW rating should not be less than 30 kW 20) 21) 22) Sluice valve and NRV size. Pump's base frame. Sole plate. (Not less than) 150 mm Dia Suitably fabricated from ISMB at Manufacturer's work

25 mm thick and fabricated at Manufacturer's work. MATERIAL OF CONSTRUCTION FOR PUMP M.S. FABRICATED / C.I. BRONZE AS PER IS-318 GR. II STAINLESS STEEL AISI 410 S.S.410 ERW HEAVY DUTY FLANGED TYPE 6 MM THICK S.S. 410 BRONZE AS PER IS-318 GR.II BRONZE AS PER IS-318 GR.II CARBON STEEL AISI 410 / 416 AS PER IS-5120 / 1988 S.S. 410. THORDON TYPE MATERIAL HAVING GROOVES FOR WATER LUBRICATION

A) B) C) D) E) F) G) H) I) J) K) L)

CASING, BOWLS & BELL MOUTH C.I. IS 210 F.C. 200 DISCHARGE HEAD IMPELLER IMPELLER SHAFT LINE SHAFT COLUMN PIPE SHAFT COUPLING WEARING RINGS SUCTION & DISCHARGE CASE BEARING NUT BOLTS GASKET SEAL AND PACKING FASTENER (NUT BOLTS & WASHERS) FOR BOWL ASSEMBLY & COLUMN PIPES LINE SHAFT BEARING

M)

TENDERER MUST SUBMIT HIS OFFER ALONG WITH SPECIFICATION SHEET DULY FILLED CONSIDERING ABOVE REQUIREMENT.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme BASIC DATA VERTICAL TURBINE PUMPING MACHINARY SUB WORK NO.11 : PURE WATER PUMPING MACHINERY 1) 2) 3) 4) 5) 6) 7) Bottom level of jack well. Strainer level required. Highest water level in the jack well. Pump base floor level. Hump point on the rising main if any. Discharge point level. DETAILS OF RISING MAIN Inner diameter (up to hump point) CONTRACT LIMIT 142.82 300 mm dia. Length of rising main 4430 m 100.00 86.55 87.00 R.L. R.L. R.L. R.L. R.L. R.L. R.L. Pipe Material D. I. K-9

213

Minimum suction level encountered. 87.55

Common header pipe upto duck foot bend out side pump house and it's connection to rising main. VERTICAL TURBINE PUMP WATER LUBRICATED TYPE 1 No. 1 No. 87 cum/hr 70 m 1475 RPM (Not less than) 150 mm dia. FLANGED TYPE (Not less than) 36.15 mm Dia (Not less than) 36.15 mm Dia (Not less than) 13.00 m mm Dia

SPECIFICATION AND REQUIREMENT OF DEPARTMENT 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 13) Type of pump required. Pumps in operation. Stand by pump. Duty discharge of each pump. Duty head required. Speed. Column pipe size required. Type of column pipe. (IN PIECES OF 1.5 Mts) Impeller shaft size. Line shaft size. Shaft enclosing tube size (If applicable) Total suspension length of column assembly including bowl assembly & strainer Pump's operating range. Pump's shut off head Pump's bowl efficiency.

(Exclusive of losses in column pipe & discharge head)

13) 14) 15)

77 m to 53 m (Not less than) 82 m (Not less than) 75%

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 16) 17) 18) 19) Number of stages. Delivery valve size required. Common header pipe size . DETAILS OF DRIVE (Not more than) 7 Nos. (Not less than) 150 mm Dia (Not less than) 200 mm Dia VERTICAL HOLLOW SHAFT

214

Squirrel cage induction motor, conforming to IS 325, having continuous rating, suitable for operation on 415 Volts ±10%, 3 Phase, 50 Hz A.C. Supply, with "F" class insulation and temperature rise limited to class "B" insulation. The motor should be having synchronous speed of 1500 RPM. Screen protected drip proof type. Motor kW rating should not be less than 30 kW 20) 21) 22) Sluice valve and NRV size. Pump's base frame. Sole plate. (Not less than) 150 mm Dia Suitably fabricated from ISMB at Manufacturer's work 25 mm thick and fabricated at Manufacturer's work. MATERIAL OF CONSTRUCTION FOR PUMP A) B) C) D) E) F) G) H) I) J) K) N) CASING, BOWLS & BELL MOUTH C.I. IS 210 F.C. 200 DISCHARGE HEAD IMPELLER IMPELLER SHAFT LINE SHAFT COLUMN PIPE SHAFT COUPLING WEARING RINGS SUCTION & DISCHARGE CASE BEARING NUT BOLTS GASKET SEAL AND PACKING FASTENER (NUT BOLTS & WASHERS) FOR BOWL ASSEMBLY & COLUMN PIPES O) LINE SHAFT BEARING THORDON TYPE MATERIAL HAVING GROOVES FOR WATER LUBRICATION BRONZE AS PER IS-318 GR.II CARBON STEEL AISI 410 / 416 AS PER IS-5120 / 1988 S.S. 410. M.S. FABRICATED / C.I. BRONZE AS PER IS-318 GR. II STAINLESS STEEL AISI 410 S.S.410 ERW HEAVY DUTY FLANGED TYPE 6 MM THICK S.S. 410 BRONZE AS PER IS-318 GR.II

TENDERER MUST SUBMIT HIS OFFER ALONG WITH SPECIFICATION SHEET DULY FILLED CONSIDERING ABOVE REQUIREMENT.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme GENERAL CONDITIONS OF CONTRACT AND DEFINITIONS (A) DEFINMONS 1.0

215

DEFINITIONS : The terms and words used in the contract are defined as follows. The terms shall have the meanings described which shall be applicable to both the singular or plural thereof. OWNER/PURCHASER : The term owner/purchaser shall mean the Bhokar Municipal Council Bhokar. ENGINEER IN CHARGE : The term Engineer shall mean the person or firm appointed by the owner to undertake the duties and powers assigned to the Engineer by the owner and by these specifications acting directly or through authorized representatives. The term Engineer is referred to 'throughout the contract documents as if singular in number and masculine in gender and means the Engineer, or his authorized representative including the Engineer employees. The contractor will be notified in writing the name of the Engineer. ENGINEER'S REPRESENTATIVE : Means any resident Engineer or assistant to the Engineer appointed by the Owner or the Engineer to perform the duties set forth in clause 3 thereof by the Engineer. CONTRACTOR'S EQUIPMENT : The contractor's equipment means appliances or things of whatsoever nature required in or about the execution, completion, commissions and maintenance of the works but does not include plant intended to form of forming part of permanent work. TENDERER.VENDER : Any person or association of persons, firm corporation or organisation submitting a Tender for the works. TENDER : The offer or proposal of the Tenderer submitted in the prescribed form setting for the prices of the work to be performed and setting for the his acceptance of the terms and obligations of the conditions of the contract & specification except in so far as the variations requested by the Tenderer at the time of tender. CONTRACTOR : The contractor is the person or partnership of persons, firm or corporation or Organization identified as such in the contract Agreement and is referred to throughout the contract Documents as if singular in number and masculine gender. The term contractor means the contractor or his authorized representative and permitted assigns of such individual or firm or company. CONTRACTOR DOCUMENTS : The contract documents consist of the contract Agreement, the notices, instructions, the contractor's Tender, The Tender Security, the notice of Award, the notice to proceed, the Conditions of the contract, the Bond the Drawings, the specifications and all Agenda. SPECIFICATIONS : The specifications cover the general terms, conditions and requirements of the contract and the materials supplied therefore, and the workmanship from the contractor. The specifications and the bill of quantities form part of the contract and are supplementary to the General conditions of Contract Wherever the term specifications is used apart from a specified standard specification or plan prepared for a particular item, as instructions of the contractor in executing that item of the work.

1.1 1.2

1.3

1.3

1.5 1.6

1.7

1.8

1.9

CONTRACT AGREEMENT: The contract documents for the contract agreement. The Contract Agreement represents the entire and integrated agreement between the parties hereto and supersedes all prior negotiations, representation, or agreements either written or oral.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 1.11

216

STANDARDS : I.S. Refers to Indian Standards issued by the Indian Standards Institution. All materials and workmanship which form part of this project shall conform to the relevant up to date amended IS or in its absence any other standard, as the Engineer may approve or direct. INSTRUCTIONS FOR GUIDANCE OF CONTRACTOR The tenderer will be liable to be rejected outright if while submitting the tender. The tenderer proposes any alternation in the work specified in the tender or in the time allowed for carrying out the work or any other conditions Any of the pages of the tender are removed and or replaced. All corrections and additions of pasted slips are not initialed by the tenderer. Any erasures are made by him in the tender. The tenderer or in the case of firm or company, the person having power of attorney does not sign or page 2 of B-1 tender form in the spaced provided for the purpose and signature is not attested by the witnesses. MODE OF PAYMENT : The break up of payment admissible for pumping machinery and other mechanical and electrical items shall be as under :

(B) 1. i) ii) iii) iv) v)

2.

i) ii) iii) 3.

80% against receipt of materials at site and proper storing. 10% after installation of all equipment in position complete. 10% on testing and commissioning and satisfactory trial run for 2 weeks. QUALITY OF MATERIALS: All electrical, mechanical and other equipment will be of approved make, best quality and ISI mark only. These should be got approved before erection from the Chief Officer.

4.

POWER OF ATTORNEY: In case the tenderer is a firm or a company they should in their forwarding letter mention the names of partners and of the persons who hold power of Attorney authorizing him to conduct transactions on behalf of the firm or company and should produce a certified copy of the power of Attorney and partnership deed along with the tender.

5. 6.

The general conditions for supply and erection of equipment should be adhered to as detailed in Section 4 included in the document. The contractor shall provide at his cost a temporary office with area of covered 200 sqft. with necessary furniture for use of Government Officer directed by the Engineerin-charge. The shed and furniture on completion of work is however the property of the contractor and shall be removed by him at the close of work. ACQUAINTANCE WITH SITE & WORK CONDITIONS ETC.: The contractor shall study the site and general conditions in respect of approaches, labour, water supply, climate, quarries and the data included in the tender papers, get it verified from the actual inspection of site etc., before submitting the tender. In case of doubt about, any item or date included in the tender or otherwise it shall be got clarified in pre-conference. Once the tender is accepted it shall be concluded that the contractor has verified and made himself conversant with all the details required for completing the work as per tender conditions and specifications.

7.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 8. CHANGE IN SITE ALIGNMENT OR ORIENTATION:

217

No compensation shall be paid on account of change in site, alignment or orientation of proposed work. 9. CONTRACTOR TO MAKE HIS OWN ARRANGEMENT FOR APPROACH ROADS FOR CONVEYANCE OF MATERIAL ETC.: The contractor shall make his own arrangement for obtaining the materials of construction required from quarries and see for himself if there are any approaches or not for conveyances of materials labour etc. to site of work and no extra claims shall be entertained due to non availability of such roads approaches etc. for conveyance of materials equipment's etc. 10. IMPORT LICENCE & PROCUREMENT OF IMPORTED MATERIALS: The contractor shall quote for the indigenous equipment only as for as possible for the work contracted to be executed. Foreign exchanges and import license if any required shall have to be arranged for by the contractor independently. The department shall not take any responsibility in this regard. A certificate stating the necessity of the particular material for the work entrusted to the contractor would only be issued by the Department if required by contractor in writing. Delay in getting any materials will not be entertained for extension of time limit. 11. WATER FOR CONSTRUCTION AND TESTING ETC.: The contractor shall make his own arrangement at his cost to get water for construction and hydraulic testing of the structure and pipeline. Department shall issue only recommendatory letter in this respect if requested by the contractor in writing. The M.C. however, if possible and without any obligation on its part may give water at prevailing commercial rate. However water for testing and commissioning of pumping machinery will be made available free of cost. 12. MACHINERY REQUIRED: All machinery required for construction purpose such as mixers, vibrators, trucks etc. shall be arranged by the contractor. Department shall not take any responsibility for providing such machinery even on rental basis. For all concerning works mixers and vibrators must be used. No concerning shall be permitted unless centering and reinforcement are approved by the Engineer-in-charge. 13. ELECTRIC POWER SUPPLY: Electric power supply required by the contractor for the purpose of execution of work and erection of pumping machinery and equipment shall have to be arranged by himself at his cost and department shall not take any responsibility in this respect. However A.C. Electric power supply at 415 volts with permissible variation, 3 phase, 50 Hz at the site for the purpose of trial run of the pumping machinery will be arranged free of cost by the Department. The contractor shall communicate the total electrical load required during successful operation of the pumping machinery. 14. USE OF SITE: The contractor shall be permitted free of charge for bonafide purpose of execution of contracted work, the use of ­ A) B) The site required for construction of work. The available approach or roads.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme C)

218

The available and required land for labour camp and store for stacking his materials, layout of which shall be got approved from the Engineer-in-charge. The extent of land required shall be decided by the Engineer-in-charge at his sole discretion. Land used at A, B & C above shall be handed over back in good condition to the Department excepting the areas where structure under contract is constructed, within 15 days of completion of work or the notice given by the Engineer-in-charge. If adequate land is not available With the Department, the contractor shall make his own arrangements to get the private land on hire at his own cost for his labour camp and stacking of materials, stores etc.

15.

INDENT OF MATERIAL TO BE SUPPLIED BY THE DEPARTMENT: Within 90 days from the date of work order contractor shall submit in triplicate phasewise requirement of materials which the department is supposed to supply as per Schedule-A.

16.

SUPERVISORY STAFF: The contractor shall have a well qualified experienced Resident Engineer who will be versed with design and installation aspect of heavy duty electrical pumping machinery, to be in day to day charge of the work and he shall be authorized to receive instructions from the Engineer-in-charge or the Dy.Engr ./S.D.O. in charge of the work. Instructions and order given to the Resident Engineer shall be deemed to have been given to the contractor. For this purpose the contractor shall communicate to the Department, Name, Qualifications and experience of such Engineer to be appointed for execution of the work.

17.

TENDER TO BE STRICTLY ACCORDING TO TENDER CONDITIONS AND SPECIFICATIONS : It should be clearly noted that the tenderer has to strictly comply with the conditions and specifications laid down in the tender and no variations or deviations are permissible.

18.

TRIAL PITS: Contractor shall ascertain the strata at the proposed sites of work before submission of the tender. No extra claims for change in type of strata during actual execution shall be entertained.

19.

PROGRAMME OF EXECUTION OF WORK: The contractor shall furnish in duplicate to the Engineer-in-charge within one month from the date of issue of work order, a programme indicating progress of work to be achieved for completion within tendered time limit. The progress schedule shall be in the form of bar charts, statement forms, periodical out turn of quantities. Should the programme be found defective in any respect or impracticable the same shall be modified as required. Should the actual progress of work lag behind at any stage, revised programme by accelerating the progress to be achieved shall be drawn up keeping the target of completing the scheme unaltered.

20.

DEWATERING: Dewatering if any required to be done during any stage of work shall have to be done by the contractor without claiming any extra cost.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 21. WORK ORDER BOOK :

219

A bound half sheet size work order book shall be provided by the contractor and handed over to the Department, for maintaining at the work site. This shall be a permanent record. The contractor or his Resident Engineer shall sign below the orders recorded by the Engineer-in-charge in token of having received them. He may take out a copy thereof if necessary. He will not record any remark in the order book but may take up the matter recorded therein. He shall carry out the orders promptly and report compliance. 22. FOUNDATIONS CONDITIONS AND PRESCRIBEDBEARINGCAPACITIES The structures shall be founded on hard, firm and unyielding strata. The foundation strata shall be passed by the Engineer-in-charge without which the foundations shall not be laid. The bearing capacity to adopt for the foundation strata shall be appropriate for the strata passed by the Engineer-in-charge, and the super loads as per I.S. provisions. 23. DRAWINGS AND DESIGN SUBMITTED WITH THE TENDER: Acceptance to the tender shall not mean approval to Design or Drawing, enclosed by the tenderer while submitting his offer. All the tendered drawings will be treated as tentative Deficiencies if any found from functional, technical and departmental obligatory requirements points of view shall have to be rectified and made good in detailed working drawings as pointed out by the Department without any extra claim. 24. i) DETAILED HYDRAULIC DESIGN, MACHINERY CALCULATIONS, FLOW DIAGRAM, LAYOUT PLAN AND DETAILED WORKING DRAWINGS : The contractor shall submit detailed working drawings showing plan, elevation section etc. for each unit, detailed calculations for pumping machinery and equipment such as pumps, motors, capacitors, transformer etc. in triplicate to The Chief Officer and simultaneously one set to the Engineer in charge. The design of the various components of work shall be based on prevailing relevant I.S.I. standards and standard recognized reference book and shall be as per standard Engineering code of practice and shall be such as to meet functional technical. structural, aesthetic requirements. Any modifications, alterations in design calculations and detailed drawings to be carried cut as a result of compliance of scrutiny remarks of the competent authority shall be carried out and submitted a fresh by the contractor if called upon to above all concerned authorities in the manner indicated in (i) above without claiming any extra cost. The actual execution of work shall be started by the contractor only after receipt of approval to the above detailed design calculations, and detailed drawings, from the competent authority. Normally a period of 30 days would be required for scrutiny of and getting approval of the Engineer-in-charge to the design and detailed drawings from the date of receipt from the contractor by all concerned. The contractor shall be fully response for the delay that would be caused in scrutiny for giving approval to the design and drawings due to their being incomplete, shabby and haphazard manner without illustrative dimensioned sketches in the design and drawing; non-submission of reference books called for. No extra time limit shall be granted on account of legitimate time required in carrying out the scrutiny as mentioned above by the department and due to improper designs and drawings submitted by the contractor.

ii)

ii)

iv)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 25. DESIGNER'S ACCEPTANCE

220

Contractor shall furnish if services are availed, the names of their designer and consultants along with their qualifications, addresses and written consent letters from them for accepting this work. 26. RESPONSIBILITY OF CONTRACTOR FOR DESIGN DRAWING AND WORK: Even though the design and drawings are approved by the competent authority of the Department the contractor shall be fully responsible for the technical and arithmetical correctness and soundness of the design and drawings and for the safety of the works executed on the basis of such approved design and drawings and to the damages and failures etc. of the works so constructed whether due to bad workmanship or faulty designs and shall on no account claim any compensation and repairs of reconstruction to such damages or failure of the works. It shall have to be done by the contractor entirely at his cost. 27. DESCRIPTION AND OMISSION: The tender drawings and specifications shall be considered as explanatory of each other and together shall form the technical requirements and stipulations of tender documents. Detailed drawings shall have preference over small sketch drawings. Similarly detailed specifications shall have preference over general specification. Should any discrepancy arise as to the meaning, intent or interpretation of any specification or drawing the decision of the Engineer-in-charge shall be final and binding on the contractor. 28. INSPECTION AND TESTING: All equipment irrespective whether specified or not, shall be tested at manufacturers works or laboratory and test certificates for all equipment shall be furnished. Test shall be witnessed by the Engineer and/or inspection from third party appointed by the M.J.P. as and where specified. The items e.g. pipe works which are fabricated at site shall be tested for the pressures or such tests specified IS/tender specification. Cost for all such tests including all incidental expenses shall be borne by contractor and cost for all such tests shall be deemed to nave been included in tendered rates. However where the tests are to be carried out in presence of Engineer, only tour expenses of the inspecting officers shall be borne by Department. Inspection fee to third party shall be paid directly by the contractor. 29. ELECTRICAL INSTALLATIONS: All electrical installations shall be carried out as per the provisions of Indian Electricity Act. Indian Electricity Rules, instructions and requirements of statutory authorities i.e. Electrical Inspector and Maharashtra State Electricity Board, Necessary test reports, shall be given by the contractor. The layout of H.T. substations and other electrical installations in indicative only. It will be the responsibility of contractor to design the layout as per applicable rules, regulations, instructions and requirements of IE Rules, IE Acts and statutory authorities. The contractor shall be responsible to get approval of the electrical inspector and work shall be executed as approved by the electrical inspector. All expenses including inspection fee shall be borne by the contractor. 30. FORCE MAJEUR: The contractor shall not be held responsible for delay or failure to perform the contract, only in case of force major conditions listed below : i) Acts of the God, acts of Public enemy, acts of Government fires, flood, epidemics, quarantine restrictions. the the the the

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ii)

221

Lockouts and strikes in factories manufacturing the pumps, motors, transformer and breakers. Except the force major conditions stipulated above no other condition shall be considered as Force major conditions. In the event of force major condition stipulated above suitable extension only will be granted. The contractor, however, will not be entitled for any other compensation including price variation due to such extension.

31.

DISPOSAL OF SURPLUS EXCAVATED STUFF: All surplus excavates stuff when would remain at site after refilling and consolidation and bringing the surface to original condition, shall be used by the contractor for filling up low laying areas or pits within the fenced premises or disposed off suitably as directed, without any extra.

32.

HOUSING AND FOOD GRAIN FOR LABOUR: The contractor shall be fully responsible for making arrangements entirely at his cost housing all laboratory employed by him and make necessary satisfactory arrangements for the same as may be required under the rules and laws of the Central Government, State Government and Local body. All the rules regarding workmen's compensation etc. shall be binding on the contractor without any claim on the Department So also food grains for the labour shall be arranged by the contractor where it is not available in the open market.

33.

ACCIDENTS ON THE WORK The contractor shall be fully responsible for any accident that may occur to the labour on his work on duty and report the same to the Engineer-in-charge and concerned Govt. labour dept. authority shall pay all necessary compensation as per rules, failing which it would be paid by the department from the amount payable to him.

34.

RATE INCLUSIVE OF ALL TAXES, DUTIES ETC. All the taxes and duties levied by the state and Central Govt. and by the local body at prevailing rates applicable on the date of receipt of tender shall be fully borne by the contractor and shall not be reimbursed to him on any account. The tendered rates shall be inclusive of all taxes, duties and ceases and shall also be inclusive of the tax leviable as sales tax on works contract under the provision of Maharashtra sale tax on transfer of property in good involved in the execution of works contracts Acts 1985 (Maharashtra Act of XIX of 1985) and turn over tax. Maharashtra Act No. XXXVI of 1989.

35.

NON REFUND OF OCTROI DUTY In respect of provision made in clause No. 35 of B-1 tender form, it is made clear that octroi duty paid to the local body on materials brought against this tendered work shall not be refunded so also no octroi exemption certificate shall be issued by the Department.

36.

NON INTEREST ON DUES No interest shall be payable by the Dept. on the amounts due to contractors pending final settlement of the claims.

37.

INCOME TAX As per rule Income tax on gross value of each bill shall be deducted towards income tax and a certificate to that extent shall be issued by the Engineer-in-charge.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 38. PERFORMANCE TEST

222

The performance test shall be conducted immediately after trial run and commissioning period as specified else where in this tender, Certificate shall be recorded by the officer not below the rank of Dy. Engineer, (Mech.) 39. GUARANTEE PERIOD AND FINAL CERTIFICATE Guarantee period shall be of twelve calendar months from the date of issue of final certificate by the Engineer-in-charge. Final certificate shall be issued only after all works are completed in accordance with the contract agreement,-commissioned and have passed field performance test and subject to provision in B-1 form, site is cleared and Twelve week period for trial and commissioning over. Final certificate will be issued once only for entire works and not for completion of part work. Guarantee covers all replacement of defective items free of charges. During the guarantee period any failure or defect attributable to manufacture, design shall be expeditiously attended by the contractor free of charge to the Engineer's satisfaction. If such attendance is unduly delayed, the Engineer-in-charge shall rectify the failure/defect at the risk and cost of the contract. Any provision regarding period in B-1 form in contravention of 12 months guarantee period shall be null and void. 40. RECORD DRAWINGS DESIGNS After satisfactory completion of the work in all respect the contractor shall submit five sets of designs and completion record drawings of each and every works as actually constructed with all dimensions and levels with the stamp "Record Drawings" along with the specifications, operating manual and instructions etc. before finalization of the final bill without claiming any extra cost, failing which the final bill shall not be paid. 41. REFUND OF SECURITY DEPOSIT The security deposit lodged by the contractor shall be refunded after expiry of guarantee period or payment of final bill whichever is later. Any provision in B-1 form which is in contravention of above stipulation shall be null and void.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

223

GENERAL SPECIFICATION FOR SUPPLY AND ERECTION

1. GENERAL This part covers conditions pursuant to the contract and will from an integral part of contract. The following provisions shall supplement the general conditions detailed specifications and requirements. 2. LIMITS OF CONTRACT Equipment furnished shall be complete in every respect with all mountings, fittings, fixtures and standard accessories normally provided with such equipment and or needed for erection, completion and safe operation of the equipment as required by applicable codes though they may not have been specifically detailed in the technical specifications, unless included in the list of exclusions. All similar standard components / parts of similar standard equipment provided shall be interchangeable with one another. 3. ENGINEERING DATA The contractor shall furnish complete engineering data of each set of equipment such as name of manufacturer, the type of model of each principal item of equipment proposed to be furnished and erected in the annexes Standard catalogs pages and other documents of the tenderer may be used in the tender to provide additional information and data as deemed necessary by the tenderer. The review of these data by the Engineer will cover only general conformance of the data to the specifications and document, interfaces with the equipment provided under the specifications. External connections and of the dimensions which might affect plant layout. This review by the engineer may not indicate a through review of all dimensions, quantities and details of the equipment, materials. any device or items indicated or the accuracy of the information submitted. This review and / or approval by the engineer shall not be constructed by the contractor, as limiting any of his responsibility and liabilities for mistakes and deviations from the requirements, specified under these specifications and documents. All engineering data submitted by the contractor after final process including review and approval by the engineer shall form part of the contract document and the entire works covered under these specifications shall be performed in strict conformity, unless otherwise expressly requested by the engineer in writing. 4. DRAWINGS Each drawing submitted by the contractor shall be clearly marked with the name of the owner, the nit designation, the specification number and the names of the project. If standard catalog pages are submitted the applicable items shall be indicated their. All titles, noting, marking and writings on the drawings shall be in English. All the dimension should be in metric units. All manufacturing and fabrication work in connection with the equipment prior to the approval of the drawing shall be at the contractor's risk. The contractor may make any change in the design which are necessary to make equipment conform to the provisions and intent of the contract and such changes will again be subjected to the approval by the engineer. Approval of contractors drawings or work by the engineer shall not relieve the contractor of any responsibilities and liabilities under the contract. Drawings shall include all installation and detailed piping drawings wherever applicable. All piping 100 millimeter and larger shall be routed in detail and smaller pipe shall be shown schematically or by isometric drawings. All drawings shall be fully corrected to agree with actual as built construction.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 5. DESIGN IMPROVEMENTS

224

The engineer or the contractor may propose changes in the specification of the equipment of quality there of and if the parties agree upon any such changes the specification shall be modified accordingly. If any such agreed upon change ins such that it affects the prices and schedule of completion, the parties shall agree in writing as to the extent of any changes in the price and of schedule of completion before the contractor proceeds with the changes following such agreements the provision there of shall be deemed to have been amended accordingly. 6. CONTRACTOR'S MATERIALS BROUGHT ON TO SITE The contractor shall bring to site all equipment, components, parts, materials, including construction equipment, tools and tackles for the purpose of the Works under intimation to the engineer. All such good shall form the time of their being brought, vest with in the owner. but may not on any account be removed or taken away by the contractor or his sub-contractors without the written permission of the engineer. The contractor shall nevertheless by solely liable and responsible for any loss or destruction thereof and damage there to. The owner shall have a lien on such goods for any sum or sums which may at any time to be due or owing to him by the contractor, under, in respect of or by reasons of the contract, After giving a fifteen (15) days notice in writing of his intention to do so, the owner shall be at liberty to sell and dispose of any such goods in such a manner as be shall think fit including public auction or private treaty and to apply the proceeds in or towards the satisfaction of such sum or sums due as aforesaid. After the completion of the works, the contractor shall remove from the site under the direction of the engineer the material such as construction equipment, erection tools and tackles scaffolding, etc. with !he writ-ten permission of the engineer. If the contractor fails to remove such materials, within fifteen (15) days of issue o notice by the engineer to do so, then the engineer shall have the liberty to dispose of such materials and credit the proceeds thereof to the account of the contractor. 7. MAINTENANCE TOOLS AND TACKLES The contractor shall supply with the equipment one complete set of all special tools and tackles for the erection, assembly, disassembly and maintenance of the equipment. However, those tools and tackles shall be separately packed and brought on to site. The tenderer shall indicate all the above items in the annexure. 8. CONTRACTOR'S CO-OPERATION WITH THE OWNER In cases where the performance of the erection work by the contractor affects the operation of the system facilities of the owner. such erection work of the contractor shall be schedule to be performed only in the manner stipulated by the engineer and the same shall be acceptable at all times to the contractor The engineer may impose such restrictions on the facilities provided to the contractor such as electricity, water, etc. as he may think fit in the interest of the owner and the contractor shall strictly adhere to such restrictions and co-operate with the engineer. It will be the responsibility of the contractor to provided all necessary temporary instrumentation and other measuring devises required during start up and operation of the equipment system which are erected by him. The contractor shall also be responsible for flushing and initial filling of the oil and lubricants required for the equipment furnished and erected by him, so as to make such equipment ready for operation the contractor shall be responsible for supplying such flushing oil and other lubricants unless otherwise specified elsewhere in these documents and specifications.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 9. QUALITY ASSURANCE PROGRAMME

225

The equipment and service under scope of this contract whether manufactured or performed within the contractor's works or at his sub-contractor's premises or at the owner's site or at any other place of work are in accordance with the specifications, the contractors shall adopt suitable quality assurance programme to control ch activities at all points, necessary. such programme shall be outlined by the contractor and shall be finally accepted by the engineer after discusson before the award of contract, and such agreed programme shall form part of the contract. 10. UNFAVORABLE WORKING CONDITIONS The contractor shall confine all his field operation to those works which can be performed without subjecting the equipment and materials to adverse effects, during inclement weather conditions, like monsoon storms etc. and during other unfavorable construction condition. No field activities shall be performed by the contractor under conditions which might adversely affect the quality and efficiency thereof, unless special precautions or measures are taken by the contractor in a proper and satisfactory manner in the performance of such works and with the concurrence of the engineer. Such unfavorable construction conditions will in no way relieve the contractor of his responsibility to perform the works as per the schedule. 11. PAINTING All exposed metal parts of the equipment including piping, structures, railings etc. wherever applicable, after installation unless otherwise surface protected, shall be first painted with at least one coat of suitable primer which matches the shop primer paint used, after thoroughly cleaning all such parts of all dirt, rust, scales, greases, oils and other foreign materials by wire brushing scraping or sand blasting, and the same being inspected and approved by the engineer of painting. Afterwards, the above parts shall be finished with two coats of allied resin machinery enamel paints. The quality of the finish paint shall be as per the standards of I.S.I. or equivalent and to be of the color as approved by the engineer. 12. FIRST FILL OF CONSUMABLES, OILS AND LUBRICANTS All the first fill of consumables such as oils, lubricants and essential chemicals etc. which will be required to put the equipment covered under the scope of the specifications, in to successful trial operation, shall be furnished by the contractor unless specifically excluded under the exclusions in these specifications and documents. 13. CHECK OUT OF CONTROL SYSTEMS After completion of wiring, cabling furnished under separate specifications and laid and terminated by the owner, the contractor shall check out the operation of all control systems for the equipment furnished and installed under these specifications and documents. 14. EQUIPMENT PERFORMANCE GUARANTEE The performance guarantee for the equipment under the scope of the contract are detailed separately in the technical specifications. These guarantee hall supplement the general performance guarantee provisions covered under general terms and conditions. 15. PERCOMMISSIONING TRIALS - TESTS On completion of erection of the equipment and before start-up, each item of the equipment shall be thoroughly cleaned and then inspected jointly by the engineer Contractor No. of Corrections Chief Officer 15.1. START UP

Tender Document for Bhokar Water Supply Scheme

226

and the contractor for correctness and completeness installation and acceptability for start up, leading 0 initial pre-commissioning test at site. The list of pre-commissioning test to be performed shall be as mutually agreed and included in the contractor's quality assurance programme. The contractors commissioning start up engineers, specifically identified as far as possible shall be responsible for carrying out all the pre-commissioning test. On completion of inspection, checking and after the commissioning test are satisfactorily over, the contractor's, the complete equipment shall be placed on initial operation during which period the complete equipment shall be operated integral with sub-system and supporting equipment's as a complete plants. 15.2 TRIAL OPERATION The plant shall then be on trial operation during which period all necessary adjustments shall be made while operating, over the full load ranging the plant to be made ready for performance and guarantee test. The duration of trail operation of the complete equipment shall be three months out of which at least seventy two (72) hours shall be continuous operation on full load or any other duration may be agreed to, between the engineer and the contractor The trial operation shall be considered successful, provided that each item of the equipment can operate continuously at the specific operating characteristics, for the period of trial operation. For the period of trial operation, the time of operation with any load shall be counted. Minor interruptions not exceeding four (4) hours at a time, caused during the continuous operation shall not affect the total duration of trial operation. However, if in the opinion of the engineer, the interruption is long, the trial operation shall be prolonged for the period of interruption. A trial operation report comprising of observations and recordings of various Parameters to be measured in respect of the above trial operation shall be prepared by the contractor. This report, besides recording the details of the various observations during trial run shall also include the dates of start and finish of the al operation and shall be signed by the representative of both the parties. The report shall have sheets, recording all the details of interruptions occurred, adjustments made and any minor repairs done during the trial operation. Based on e observation, necessary modifications repairs to the plant shall be carried out by contractor to the full satisfaction of the engineer to enable the latter to accord permission to carry out performance and guarantee test on the plan. However for defects which do not endanger the safe operation of the equipment shall be considered as reasons for withholding the aforesaid permission. The commissioning and operation period generally will be 8 continuous weeks, unless otherwise specifically specified. During the commissioning and operation period, the contractor shall depute his personnel full time to operate, maintain and repair the equipment the personnel so deputed shall maintain log books and other records as directed by the engineer. During this period, the owner shall make only electricity available to the contractor, all other consumable materials (lubricants and other requirements) shall be provided by the contractor at his cost. During commissions period the owner's personnel who shall continuously work with contractor personnel, shall be adequately trained by the contractor's personnel to the full responsibility of operating maintaining, repairing etc. the equipment and plant.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 16. ELECTRICAL SAFETY REGULATIONS

227

In no circumstance will the contractor interfere with fuses and electrical equipment belonging to owner or other contractors. Before the contractor connects any electrical appliances to any plug or socket belonging to the other contractor or owner, he shall :a. b. c. Satisfy the engineer that the appliance is in good working condition. Inform the engineer of the maximum current rating, voltage and phases of the appliances. Obtain permission of the engineer detailing the sockets to which the appliances may be connected. The appliance is in good condition and is fitted with a suitable plug. The appliance is fitted with suitable cable having two earth conductors, one of which shall be an earthed metal sheath surrounding the cores.

The engineer will not grant permission to connect until he is satisfied that : a. b.

No electric cable in use by the contractor / owner will be disturbed without prior permission. No weight of any description will be imposed on any such cable and no ladder or similar equipment will rest against or be attached to it. No work will be carried out on any live equipment. The equipment must be made safe by the engineer and permit work issued before any work is carried out. The contractor shall employ the necessary number of qualified, full time electricians to maintain his temporary electrical installation.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Sub work No.8 & 11 : Providing ,erecting, testing commissioning Vertical Turbine Pumpsets and allied equipment etc. on jack well (Raw & Pure Water Pumping machinery) DETAILED SPECIFICATIONS

228

The scope of work includes providing approved make pump and allied equipment for the scheme as per requirement of the Department. The essential design features and detailed specification of each and every item is as under ITEM NO 1 : VERTICAL TURBINE PUMP ESSENTIAL DESIGN FEATURES. Vertical Turbine Pump offered shall satisfy the following basic design features. · · It shall have a rising head characteristic. The impeller adjustment shall be such that the impellers run free in any installed condition in spite of the extension of line shaft , caused by hydraulic down thrust, and weight of shafting and impellers. It shall be designed for non-overloading of prime mover. It shall be designed to run with closed sluice valve condition without overloading the prime mover. GENERAL SPECIFICATION The contractor shall submit his quotation in the standard prescribed form and performance data required by the Department as enclosed separately. The pump shall have stable characteristic performance over the entire head range mentioned. The pump shall be designed for the BEST EFFICIENCY at duty point. The total head mentioned is inclusive of all losses in the entire length of pipeline starting from discharge flange and velocity head required at discharge point. The losses in the column pipe and discharge head etc shall be assessed by the tenderer and included in the design head of the bowl. The offer of lower efficiency pump than that required by the Department will not be considered. Similarly no efficiency loading will be considered for higher efficiency. The material of construction for pump should be as specified by the Department. The dimensions of column pipe, impeller shaft, line shaft, should not be less than that mentioned by the Department as specified requirement. The complete pump set including pump, column pipe, line shaft, discharge case should be supplied of an approved make only. The complete pump set should be offered for inspection at the time of third party inspection in manufacturer's works prior to dispatch. SUCTION BELL MOUTH AND SUCTION STRAINER. Suitable size C.I. bell mouth and suction strainer shall be supplied by the contractor with each pump, strainer should have net area of opening equal to at least three times the suction pipe area. BOWL ASSEMBLY. The casting of bowl shall be free from blowholes, and other defects. The pump bowl/bowls shall be flanged with machine matching faces. The bowls shall be capable of withstanding a hydrostatic pressure equal to twice the pressure at rated capacity or 1.5 times the shut off head which ever is greater. Contractor No. of Corrections Chief Officer

· ·

Tender Document for Bhokar Water Supply Scheme

229

The bowls may be equipped with replaceable seal rings on suction side of enclosed impeller. Water passage shall be smooth and the bowls may contain bush to serve as bearings for the impeller shaft. The bowl assembly shall bear manufacturer's name plate giving details as per IS1710. IMPELLERS. The impeller may be of enclosed or semi-enclosed type and shall be properly dynamically balanced on balancing equipment. The test results of the same should be offered for inspection during factory test. The impellers shall be properly machined with water passage hand finished. Enclosed impellers or bowls shall be equipped with seal rings on their hubs, seal rings shall be provided either with impeller or in the bowl. IMPELLER SHAFT. The impeller shaft shall be of STAINLESS STEEL having surface finish of 0.75 micron Ra Max at fixing sizes. The design of shaft shall also take into consideration the critical speed of the shaft, which shall be removed, from the actual working speed by at least 10% on either side. The impeller shaft shall be guided by bearings provided in each bowl or above and below the impeller shaft assembly. Extra long bearings shall be provided for suction and discharge bowls. The butting faces of the shaft shall be machined square to the axis and the shaft ends shall be chamfered on the edges. COLUMN PIPES. The column pipe shall be manufactured from tubes conforming to IS-1978/1971, heavy series. The standard length of column pipes shall be 1.5 Mt. and its jointing shall be flanged type. The thickness of column pipe shall be 6 mm. For calculating the setting lengths the required levels are given in the detailed statement, accordingly the column pipe and line shaft shall be installed. The setting dimensions shall be got approved before supply. Make up piece if required for pump shall be provided to have exacted setting length. LINE SHAFTS AND COUPLINGS. The line shaft shall be solid circular section prepared from S.S.410 of required length. The shaft surface finish, tolerance limit, and critical speed criteria for design should be as per impeller shaft. The line shaft shall be furnished with inter changeable sections. To ensure correct alignment of the shaft they shall be straight within 0.125 mm for 3 Mt. length. Maximum permissible error in the axial alignment of thread axis and shaft axis is 0.05mm in 150mm. Steel coupling shall be designed with minimum right hand threads depending on the direction of rotation of the pump to tighten during the pump in operation. LINE SHAFT AND LINE SHAFT BEARINGS. (For water lubricated pump) The line shaft section shall be provided with a non corrosive-wearing surface particularly at the location of each guide bearing. The line shaft bearing shall be designed to be lubricated by the water being pumped and shall be placed in bearing holders held in position at the joint of the column. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme DISCHARGE HEAD.

230

Discharge head shall be fabricated from CI. / MS it shall be incorporated full diameter elbow mounting flange for motor with suitable tapping for pressure gauge. The discharge head shall be of robust construction and shall be designed to support entire static and dynamic load of pump assembly, water column and motor. The discharge head shall have an arrow indicating direction of rotation of pump. The discharge head shall bear a nameplate with following information. Name of Manufacturer Serial Number. Type / Size. Speed. Discharge. Head. Pump Input. Maximum Input. Cu.Mt /Hr. Meters. kW. kW.

The discharge head may have a stuffing box with a renewable bushing. The location shall be easily accessible. The lantern ring and gland follower shall be split type. It shall incorporate suitable arrangement to collect gland leakage and lead to sump with suitable piping. The discharge head should have suitable size valve arrangement for air release. A tube tension plate may be installed on the discharge head to tighten up the shaft tube for the purpose of aligning the shaft for oil lubricated pump. FACTORY INSPECTION AND TEST. The pump shall be inspected and tested by third party approved by M.J.P. in presence of Departments representative. The scope of inspection included hydrostatic test of bowl assembly, column assembly, discharge head, performance test, strip inspection, reviewing material test certificate, impeller balancing test certificates etc. The testing shall be done as per stipulation in IS- 9137 Code for acceptance test for Class-C pump. It is contractor's responsibility to organize this inspection and shall bear all expenses inclusive of inspection fees etc. ERECTION. The pump is to be erected as per general layout drawing shown. The pump is to be erected on provided RCC beam /ISMB as directed by engineer. Suitable size ISMB base frame is to be provided and rigidly bolted to main beams. MS sole plate shall be provided under the discharge head of minimum 32 mm thickness with arrangement for precise vertical and horizontal alignment. The main frame shall be leveled and firmly bolted to RCC beam and shall have ground top. The sole plate shall be matched to this ground top by blue matching process to have at least 60% contact area. TOOLS. The contractor should supply all special tools required for erection of pump with each pump. One common pre-lubricated tank of 100 liters capacity Sintex type shall be provided and fixed at suitable height with required stand 15 mm G.I. `B' class pipe connection from this tank shall be provided to each pump for pre-lubrication. At suitable location isolating valves shall be provided on common pipeline near to pump discharge head.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ITEM NO. 2 : C.I.D.F. SLUICE VALVE

231

The specification under this section covers the design, performance, manufacture and construction features, delivery, erection and testing etc. of sluice valve. All jointing material for erection of valves is to be provided by contractor with no extra cost The valve shall be double flanged water works pattern inside screw with non-rising spindle. The valve shall have suitable size hand wheel with arrow marked for OPEN and CLOSE. The valve shall be conforming to specifications as per IS 780 or IS 2906 as applicable according to size of valve. The valve should be without bypass arrangement. The material of construction shall be as under. Body and Flap... Spindle... Cast Iron. Stainless steel / Bronze

Necessary cement concrete support block for supporting the valves shall be provided as per direction of Engineer-in-charge. The valves shall be painted with two coats of best quality anticorrosive black paint after erection work The valve size and its PN Rating should be as mentioned below. Valve Size PN Rating Total Quantity TESTING. The valve shall be subjected to test at manufacturer's works for seat and body test at the pressure stipulated in IS for respected PN Rating, Manufacturer's test certificate shall be submitted along with supply ITEM NO. 3 : C.I.D.F REFLUX VALVE The specification under this section cover the design, performance and construction features, delivery, erection and testing etc comp. Providing erecting C.I.D.F. REFLUX VALVE, single door, water works quality conforming to IS- 5312, with gunmetal seat and jointing to pipe work including all hardware and packing The non-return valve without bypass arrangement shall be provided as per description given below. The valve shall be free action quick opening, non-slam closer and low heat loss characteristics and single door type. Necessary supports of cement concrete block for supporting the valve shall be provided as per direction of Engineer-in-charge. Valves shall be painted with two coats of best quality anticorrosive black paint after erection work The valve size and its PN Rating should be as mentioned below. Valve Size PN Rating Total Quantity TESTING. The valves shall be tested at manufacturer's works for seat and body test pressure as given in IS for respective PN-Rating. 150 mm Dia PN ­ 1 Rating 3 Nos. 300 mm dia. PN ­ 1 Rating 1 No. 150 mm dia. PN ­ 1 Rating 3 Nos.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ITEM NO. 4 : KINETIC AIR VALVE

232

The contractor shall have to provide and erect in position as per direction of Engineer-in-charge Kinetic Double Orifice Air Valve with as isolation sluice valve mounted in horizontal position operated with wheel gear. The specials required for erection of Kinetic Air Valve should be supplied by the contractor. Valve should be painted with two coats of best quality anticorrosive black paint after erection work. The valve size and it's PN rating required. Valve size PN Rating Total quantity 80 mm Dia PN ­ 1 Rating 1 No.

ITEM NO. 5 : M.S.D.F. PIPE & SPECIALS The contractor should prepare layout drawing of pumping machinery as per actual site condition. The pumping machinery layout drawing with detail dimensions of suction piping, delivery piping, common manifold piping up to contract limit should be got approved from Department before starting the work. The contractor has to supply M.S.D.F. pipes and specials such as, Taper, 90 degree bends, duck-foot bend , Radial tee, distance pieces of various length, blank flanges etc. as per approved drawing. M.S.D.F. specials shall be of mild steel conforming to IS and fabricated to transit flow without disturbing streamlined condition, to gradual and smooth change of direction and or velocity, as the case may be and to offer neat and aesthetic appearance. The thickness of pipe shell and flange should be got approved from Dept. prior to fabrication. . The flanges should be drilled as per IS1538/1967 Part 4-1976. All jointing material such as rubber packing, nut bolts, washers, white lead etc required for jointing pipes and the contractor shall provide specials. Necessary cement concrete block should be provided for pipe support. The necessary hydraulic testing of pipe and special's joints for structural rigidity and water tightness with all conditions of pumping shall be given. The quantity mentioned in the tender is tentative and may vary as per site condition. Weighment of pipes and specials will be the entire responsibility of the contractor before erection. The weight of M.S. pipes and specials should not be less than that mentioned in respective IS, however no extra payment will be made for excess weight. The flanges should be drilled as per IS- 1538/1967 Part 4-1976. All jointing material such as rubber packing, nut bolts, washers, white lead etc required for jointing pipes and specials shall be provided by the contractor. The complete piping work including valves etc. should be painted with two coats of anticorrosive paint after complete erection and testing work. The pipe shall be fabricated from 6 mm thick M.S. plate and flanges shall be 15 mm thick. Payment will be made as per actual weight basis. For calculating the weight for payment on rate per Kg. basis, following parameters will be applicable. · · · Contractor Weight of pipe and special shall be based on finished/ fabricated component wastage will not be paid for. Thickness shall be average thickness of pipe supplied. No deduction for bolt holes in flange will be made. No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme · · Nut bolts will not be considered for weight calculation. Specific weight for MS. pipes and specials assumed as 7850 Kg/CuMt.

233

ITEM NO. 7 : FLANGED JOINTS The item includes cost of all jointing material nut-bolts, rubber joints, white paste etc, labour for fixing flanges to pipes pieces. ITEM NO. 8 : PRESSURE GAUGES Providing and fixing 150 mm dia Borden pressure gauge with in line siphon tube and pulsation dampener, one number for each pump and one number on common header, is included in this item. Contractor should provide suitable tapped holes at appropriate places for fixing these pressure gauges, The pressure gauges should be of approved make only. ITEM NO. 9 MOTOR The scope of the work includes providing approved make, vertical hollow shaft squirrel cage induction motor, conforming to IS 325 ­1970,suitable to operate on 415 Volts +/- 10%, 3 Phase, 50 Hz, AC supply. The synchronous speed of the motor should be 1500 RPM. The insulation grade of the motor should be `B'. The motor should be screen protected and drip proof type.. Motor should have suitable terminal box to accommodate incoming cable from starter. Motor shall be suitable to operate on +/- 10% voltage variation, and +/-5% frequency variation, and +/-10% voltage and frequency variation. Thrust bearing shall be suitable and of adequate capacity to carry the weight of all rotating parts and the hydraulic down thrust. Non reversing ratchet or similar mechanism should be provided to the motor to prevent reverse rotation. Continuous maximum rating of the motor shall be at least 20% above the maximum power absorbed by the pump under any operating point within stipulated head range of the pump, or at least 10% above the power required at shut off, which ever is higher. However the motor should not be less than that mentioned in schedule `B'. All technical details, leaflets for the motor offered should be given along with tender only. Manufacturer's test certificate shall be furnished along the supply of motor. ITEM NO. 10 : MOTOR STARTER AUTO TRANSFORMER STARTER WITH AIR BREAK CONTACTOR (LOCALY FABRICATED) The scope of work includes, designing, providing and giving test and trial of locally manufactured fully automatic auto transformer starter with approved make power contactors. Fully automatic auto transformer starter shall be housed in totally enclosed sheet metal clad, vermin and dust proof cubical box, suitable for floor / plinth mounted for indoor operation. The panel shall be fabricated from MS sheet SWG 14, with hinged door at front. Limit switch shall be provided to trip the motor in the event of opening of door. The panel framework shall have ICMC-100 base channels. The size of the cubical box shall be sufficient for ease in maintenance work and proper ventilation. However the size of the cubical should not be less than 1.5 X0.9 X 0.5 Mt. At least two number of ventilating louvers shall be provided on side walls, at top to exit the hot air, and one number louver at bottom to allow fresh air inlet. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

234

The panel shall be painted with one coat of primer and two coats of enamel paint of approved shade. Bus bar, copper strips, copper leads shall be designed for twice the full load current. The potential wiring shall be carried out in 1.5 Sq.mm copper cable, and CT. circuitry wiring shall be carried in 2.5 Sq.mm copper cable. The Auto transformer starter shall incorporate following equipment. Triple pole AC3 rating power contactor with required number of NO & NC- 1 No. · · · · · · · · · · · · · · · · Main Contactor (110 Amp Rating) Auxiliary Contactor (40 Amp rating) 1 No. 2 Nos.

Oil immersed, copper wound Auto-transformer with tapings, 50%, 65%, 80% with first fill of best quality transformer oil. 1 No. CT operated bimetallic over load relay. ON & OFF Pneumatic timer (0.05 to 30 Sec) ON delay pneumatic timer (0.05 to 30 Sec) ON OFF Push buttons. HRC control fuses. Suitable rating Ammeter with metering CTS & Selector switch. Thermostat. For oil temperature Door limit switch. (1 NO +1 NC) Current sensing Single phasing presenter with CTS No volt release Indicating lamps, Motor ON, OFF, TRIP (Protection CTs 10P3 / 10 VA) 1 No. 1 No. 1 No. 1 No. 1 No. 3 Nos. 1 No. 1 No. 1 No. 2 Nos. 2 Nos.

ITEM NO. 11 : L.T. PANEL The panel board shall be cubical type with minimum size of 1.5 m x 1.75 m x 0.5 m and shall be made up of 16 SWG MS sheet. It shall have MS channel base of 75 x 40 x 4.4 mm and angle support to all sides of 35 x 35 x5 mm. It shall be suitable for indoor operation, floor mounted and industrial type, dust and vermin proof and shall be given one coat of red oxide and two coats of gray enamel paint. It shall receive power and distribute as per requirement to related equipment with proper protection, metering system and indication as per I.E. rule. The general requirement of the system is represented in the single line diagram attached. The panel shall consist of following equipment L.T. Panel shall be skeleton / Box type for indoor operation, floor mounted type to receive power and distribute as per requirement to related equipment with proper protection, metering system and indication as per I.E. rule The panel shall be given one coat of red oxide and two coats of gray enamel paint. The general requirement of the system is represented in the single line diagram attached. And the panel shall consist of following equipment. 1 ALUMINIUM BUS BAR SUTABLE FOR 300 AMP As per required size, length & qty. Chief Officer

Contractor

No. of Corrections

Tender Document for Bhokar Water Supply Scheme CAPACITY 2 3 4 A) B) C) D) 5 6 7 A) BUS BAR INSULATOR CHANGE OVER SWITCH POLE 125 Amp MOULDED CASE CIRCUIT BREAKER 3 POLE 300 Amp (35 KA) with Shunt release coil and front operating mechanism ( As incommer ) 225 Amp (16 KA) with under voltage coil and front operating mechanism ( for pump ) 100 Amp (10 KA) with Shunt release coil and front operating mechanism for Capacitor 2 + spare 1 = 3 Nos. 40 Amp (10 KA) 2 POLE ( for lighting ) SELF LOCKING ARRANGEMENT SET OF PILOT LAMP AMMETER (A) 144 X 144 mm (0 to 200/300 Amp.) for Common 1 & for individual Pump VOLTMETER 144 x 144 mm 8 SELECTOR SWITCHAR A) B) 9 10 11 12 12 14 15 16 17 For Ammeter For Voltmeter 4 1 2 2 1 Nos. No. Nos. No No 1 No. 4 Nos. 3 Nos. 1 1 Nos. SET 3 Nos. 1 No. As per requirement 2 Nos.

235

12 Nos.

CURRENT TRANSFORMER 300/5 for Ammeters KEY ACTUATOR RUBBER MATTING 6mm thick 22 kV grade CAUTION BOARD NAME BOARD (separately given) INTERNAL PANEL WIRING L.T. CAPACITOR Metalised Polypropylene type 20 KVAR * 2 BANK DIGITAL WATCH HOUR METER (for each pump) + common

12 Nos. 4 Sq MT

As per requirement 40 KVAR 1 3 No. Nos.

The panel board shall be completely factory wired ready for connecting the equipment. All internal wiring of the panel is to be carried out by PVC insulated PVC sheathed copper cable of adequate capacity. Incoming and out going cable entries shall be enclosed in metal clad dust and vermin proof enclosure and suitable size cable glands shall be provided for cable entries from bottom. Rubber matting 10 mm thick total 4 Sq. Mt. and caution board 1 No. should be provided with the panel. The drawing of the panel shall be got approved before actual manufacturing and the panel board shall be tested at manufacturer work in presence of third party and departments representatives.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme MOULDED CASE CIRCUIT BREAKER

236

MCCB ­ Front operated, triple pole suitable for 440V, 50Hz AC supply with termal overload release. The rating (capacity) and rupturing capacity is as stated above for incoming and outgoing MCCB. ON-OFF indication shall be provided for all MCCB and push button tripping arrangement for incomer MCCB Bus Bar of 300 A capacity for full length of panel board with RYB phase and neutral and mounted on insulation of appropriate capacity. The bus bar shall be painted with standard coloured code or PVC insulated with colour code. The MCCB shall be draw out type four pole 300 Amp capacity 440 Volt / 3 Phase / 50 Hz. with neutral link, overload trips having overload mechanically ON -OFF position. It shall have adequate rupturing capacity the incoming and outgoing connections should be of copper insulated strips. INDICATING LAMPS. The indicating lamp shall be of filament bulb type, oil and dust proof and suitably coloured. The connection should be done with copper wire with suitable slip fuse links. VOLTMETER AND AMMETER These meters shall be of accuracy class 1 as per IS 1248, meter sizes should not be less than 144 x 144mm square and flush type. The meter range shall be 125% higher than maximum expected reading. These meters should be provided with suitable selector switch rotary type so as to facilitate the reading of three phases. CAPACITOR. The capacitor shall be designed to withstand electro dynamic and thermal stresses caused by transient over current during switching. It shall be of metalised poly propylene conforming to IS / 2834 . EARTHING. A 25 X 3 MM GI flat running the length of control panel shall be provided. Metal frame and control switchboard shall have separate and distinct earth connections. NAME BOARD The name board shall be made up of 18 SWG GI sheet and of size 1.0 x 1.5 m. It shall be suitable for wall mounting provided with suitable size teakwood bottom at back side. It shall be painted with two coats of anticorrosive and oil paint and details such as Makes, Models, Sr. No. Manufacturing year etc. shall be given on the name board as per direction. AUTO TRANSFORMER Fully automatic auto transformer shall be 3 Phase, oil cooled type, suitable for motor starting duty, core type, copper wound of high grade silicon lamination with `B' class insulation. The auto-transformer shall be suitable for operation on 45-degree ambient temperature with tapping at 60%, 70% and 80%and have 95% regulation when fully loaded. The lowest tapping at auto-transformer shall be in compliance with driven equipment torque requirement. It shall be suitable for 6 operation per hour, all six starts being uniformly distributed over an hour with equal period in between. The auto-transformer shall conform IS 1822. The auto transformer starter shall be wired up as per condition for connection to avoid open circuit transition providing for a smooth change over from tap to line voltage. The main contactor shall be of suitable rating.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

237

Adequately rated thermal overload relays operated through suitable CT shall be provided. The CT operated base mounted single-phase presenter shall be provided. The starter shall be complete with necessary adjustable timer, auxiliary contactor other accessories, wiring, etc to make a composite unit. The master timer set shall be provided to cut off supply to auto transformer in case of the change over timer fails to operate. POWER CONTACTOR The contactors in starter shall have 3 main poles with a minimum of 2 Nos. + 2 NCs, auxiliary contacts, with one spare NO and NC .The contact shall be made of anti weld Silver Cadmium oxide and contact system shall be designed with minimum bounce to ensure long contact life. The contactor shall be sufficiently rated for severity operating condition for use in motor circuit. The coil shall be molded in hard resign suitable for continuos operation. The contactor shall be suitable for making and breaking at o.35 power factor and stalled current of associated motor which shall be assumed and times full load current of corresponding motor. All contactors employed shall conform IS 2959 SINGLE PHASING PREVENTOR. The single-phase preventor in the starter shall be provided for each panel and it shall be current operated negative sequence with necessary CTs. The indicating lamp shall be of filament bulb type of 160-Volt rating with series of resistance for different voltage. The timer shall have 2 Nos + 2 NCs auxiliary contacts. The timer shall be capable of the thermal effect of switching and have very close accuracy. The timer shall be capable for operating on 240 Volts AC supply in the voltage range of 80% to 110% and frequency range 95% to 105%. FACTORY INSPECTION AND TEST. The Auto Transformer Starter, shall be inspected and tested by third party approved by M.J.P. in presence of Departments representative. The scope of inspection includes :· · · · · · Review of raw material test certificate and quality control procedure. High voltage test. Insulation resistance test. Full load test of auto-transformer winding. Die-electric strength of oil.

Fault simulation for testing protection relays except short circuit and earth fault. Supplying and erecting PVC armored cable 1100 Volt grade, and of approved make, as per following type, having solid/stranded aluminum core with 6 mm thick 25 mm width MS spacer with GI saddles screwed with continuous 14 SWG GI earth wire/ 6 Sq.mm. aluminum earth wire complete erected on wall with 25 X 3 mm MS clamps. From M.S.E.D C. Ltd. Supply point to pump house 3½ core From Panel to starter and starter to motor 3 core 95 Sq.mm 50 Sq.mm

ITEM NO.11 : CABLE

Cable shall be laid in trenches in ground outside pump house and in duct while passing through wall. Very cable shall nearly run vertically or horizontally or parallel to the adjacent wall/ beam or column. The cable shall be terminated in mechanical Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

238

gland, which shall be suitable to provide adequate support by locking on armored and additional earth continuity. Suitable compression type lugs shall be used for cable termination. Cable routing drawing, trench drawing should be got approved from the Department prior to cable laying. The point of Entry and Exit of the cable from pump house shall be sealed from outside with an approved asbestos compound which shall be followed by a weak mortar. Cable routing and laying shall be such that sharp bends are avoided. Loop and extra length shall be provided in each cable run and located suitably. Single core cable should be laid in trefoil formation. Cables running parallel should be spaced 150 mm clear distance. Radius of cable bend should not be less than 20 D, where D is overall diameter of cable. Cable route marker and metallic tags bearing cable reference should be provided as per instructions of Engineer-In-Charge. ITEM NO. 12 : EARTHING The item includes providing, earthing to H.T. / L.T. electrical equipment in pump house / sub station. The earthing system shall be carried out in accordance with the layout drawing got approved from the Department and The Electrical Inspector. The earthing shall be designed with galvanized cast iron earth plate of size 60 x 60 Cm. 6 mm thick, with 40 mm dia. GI pipe buried in specifically prepared earth pit, up to 1.5 Mt below ground level. The earth pit should be refilled with 40 kg charcoal and salt and a separate19 mm Dai GI pipe with funnel wire mesh for watering should be provided. Necessary length of double GI earth wire No 6 SWG bolted with lug to the plate and covered in 12 mm dia. GI pipe, 2.5 Mt long. 6 SWG earth wire should be used for minor LT load however for higher HP installation GI strip should be used. Minimum number of earth electrodes required is as mentioned in schedule `B'. Or should be provided as per Electrical Inspector's approval without any extra cost. The earth electrodes shall be buried in specifically prepared earth pit and refilled with layers of charcoal / coal and salt. Cement concrete or brick masonry chamber with CI covers should be provided to each electrode. The size of chamber should not be less than 30 x 30 Cm x 25 Cm deep. (Clear opening) as per paragraph 7.3 of IS 3043. All electrical equipment shall be double earthed with suitable size GI / Aluminum earth lead as per IE rule and IS 3043 / 1966. All earth electrodes shall be inter connected by GI strip of suitable size through a common circular ring. The earth resistance should not exceed the limit prescribed in IS / IE rule. ITEM NO. 13 : STRIP FOR EARTHING Providing, erecting, commissioning and testing G. I. Strip of 32x6 mm size used for earthing with necessary clamps etc. in an approved manner. ITEM NO. 14 : LIFTING ARRANGEMENT CHAIN PULLEY BLOCK ­ 3 T. capacity, Trolley 3 MT capacity Triple spur gear type with 6 m lift complete with load chain and hand chain suitable for above lift, tested to 50% overload as per IS 3832 and carrying ISI mark, with manufacturer's test certificate. ITEM NO.15 : TOOLS Providing best quality tools for maintenance of pumping machinery as per list given below. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 D.E. Fix Spanner 6-mm to 32-mm of 12 pieces D.E.Bi-hexagonal Ring Spanner 6-mm to 32-mm of 12 pieces Ball pane hammer 800 Grams with wooden handle Insulated Combination cutting pliers 200 KDPE coated Adjustable wrench Chrome vanadium 250 mm long -30 mm 450-mm long 60-mm Pipe wrench stilton carbon steel Screw Driver Engineering pattern 6-mm x 300-mm Screw Driver Engineering pattern 8-mm x 200-mm Screw Driver Engineering pattern 5-mm x 300-mm Electrical line tester with green neon bulb 3.6 mm x 60 mm Hacksaw Frame 300-mm with heavy duty blade Tool Box of MS sheet 18 SWG 50-cm x 30-cm x 30-cm Cold chisel chrome vanadium hex. 19 / 14 x 200 mm Bearing puller three legs 200 mm Hand op. crimping tool 6 - 185 mm² lugs with set of dies Insulation tester megger 1000V 1000 OHMS Tong tester 0-10-30-100-1000 A, 300 - 600V H.T. SUB STATION WORK 1 Set 1 Set 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No. 1 No.

239

This item includes providing following accessories in the sub station. The existing transformer, poles etc. will be in use. The transformer in this agreement will be used as a standby. The necessary drawing for additional modification / alteration of sub station equipment shall be submitted and got approved by Electrical Inspector. R.S.J. POLE R.S.J. 175 X 90-mm size, pole 10 Mt long (With base plate, C.C. foundation and plinth.) 4 Nos LIGHTNING ARRESTOR (Thyrite type) Set. GANG OPERATED A.B. SWITCH. (200 Amp) 3 No. 2

Tilting type with operating handle & drop pipe, switch with operating handle and drop pipe etc complete. OUT DOOR TYPE DROP OUT FUSE UNIT. 2 Set.

The required 100 X 50 ICMC channel iron cross arm of suitable length, porcelain type disc insulators, pin insulators, anticlimbing devices to all vertical poles, MS Clamps, 7 X 10 SWG stay wire, ancillary material hardware should be supplied and erected by the contractor .

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

240

All HT overhead connections shall be made by 6 SWG solid copper conductor with extra thick alkathene covering pipe. The MS structure should be painted with one coat of red lead and two coats of silver paint Following material should be supplied by the contractor while carrying out the sub station work. a) Operating rod for D.O. fuse at 6 Mt. Height. b) M.S.Fabricated stand for 4 Nos buckets. c) Round bottom buckets (13lt capacity) duly painted By two coats of red paint. d) Printed instruction chart duly framed. e) Pair of hand gloves. f) Standard first aid box with all required standard contents. g) Standard size danger board duly fixed. h) Fire extinguisher 5 Kg capacity. g) Earthing strip i) Disc insulator 11 kV j) Pin insulator 11 kV k) Cross arms 100 x 50 mm l) Metal spreading in sub station area FENCING AND CIVIL WORK FOR SUB STATION As per approved layout drawing of substation, contractor has to develop the plot for sub station to accommodate required pole structure and transformer plinth with adequate margin all around. However the sub station area should not be less than 60 sq. Mt. The sub station area should be leveled and compacted properly. Providing and spreading stone metal 25mm size of 100mm layer above the compacted substation area is to be completed after completion of earthing work. Sub station plot shall be raised 200mm above the GL. by earth filling. Proper size C.C. Foundation block for transformer as per approved drawing is to be constructed by the contractor. The cost of C.C. foundation required is included in the estimate cost of sub station civil work. All electrical equipment shall be double earthed with suitable size GI. earth lead as per I.E. Rule and IS 3043/66. All earth electrodes shall be interconnected by GI. strip of suitable size through a common circular ring. The sub station area should be provided with proper fencing by M.S. fabricated section having size 2.45 m X 1.2 m. width, made up of 50 X 50 X 6 mm angle duly erected in C.C. foundation and section of frame fitted with flat iron 25 X 6 mm and chain link jali 50 X50 mm size of 2.36mm dia hard wire. The work of providing, erecting 50 X 50 X 6 mm angle corner support 6 Nos. is included in this item. The fencing wall with 60 cm height (20 cm below existing GL and 40 cm above ) shall be constructed in 1:2:4 C.C. with R.C.C. raft below. 4 Nos. 1 Nos. 2 Pair. 1 Nos. 4 Nos. 2 Nos. 100kg 9 Nos. 9 Nos. 21 Nos. 2 Nos. 1 Nos.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

241

The double leafed hinged door 2 Nos., each of 1.5 m in width and 1.85 m height, shall be fabricated using 25mm dia "B" class GI. Pipe and 45 X 45 X 5 mm cross support and chain link jali shall be fixed as mentioned above with flat iron covering all around. The channel iron with size 100 X 50 mm 2.5 m length for side support of gate duly erected in C.C. foundation gate should be provided with head latches and locking arrangement. The C.C. foundation for gate support and fencing pole is included in this item and same will not be paid extra. Complete fencing work including gate should be painted with one coat of red oxide and two coats of aluminum paint. ITEM NO.16 : TEST AND TRIAL This item includes testing of complete installation including charges of required operating staff, supervision, sundry material and lubricants required. The Department will make only Electricity and water available for test and trial free of cost. Each pump shall be tested for 15 days continuously for 16 hours per day as per availability of power supply. Total test period will be 90 days for common equipment. The testing includes all field tests, the contractor shall maintain a logbook for this test period and counter signature should be taken from Department's representative attending the test. During test period any defect observed the contractor free of cost should rectify it. Guarantee period of 12 months will be treated after satisfactory test and trial completed. The Department may issue final certificate after satisfactory test and trial. Security deposit lodged by the contractor shall be released after expiry of guarantee period or payment of final bill whichever is later.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

242

LIST OF APPROVED MAKES (ELECT. / MECH.)

I) I) PUMP Submersible Pumps For 100 mm(4") pumps with Polpropylene Impellers

a)

Pluga Shakti Amrut Waterman Agasti Falcon b)

For 150 mm(6") pumps with Bronze Impellers only

Vadodara (Upto 31-12-08) Ichalkaranji (31-3-1 11) Visnagar(Gujrat) (31-3-1 11) Ahmedabad [31-3-1 11 Mira (31-3-11) Rajkot (upto 5 HP only) (31-3-11) No limit Manufactured at

Name of Pump

Category "A"

Agasti Waterman Amrit Shakti Unnati (U-Neel) Pluga MBH Lubi

Category "B"

Mira, Thane (31-3-11) Ahmedabad (31-3-11) Visnagar (Gujrat) (31-3-11) Ichalkaranji (31-3-11) Ahmedabad (31-3-11) Vadodara (31-12-08) Ahmedabad (31-12-08) Ahmedabad (31-12-11)

HP 30, Q-1000 LPM, head 100 m

Falcon Jyoti Unnati Sabar Varuna (La-Gajjar)

Category "C"

Rajkot (upto 31-3-11) Vadodara Ahmedabad (Unnati Brand 31-3-11) Ahmadabad (upto 31-3-11) Ahmadabad (upto 31-3-11)

HP-15,Q-500 LPM, Head-80 m

Konai Ellen Deccan Texmo Taro

Ahemadabad (upto 31-3-11) Coimbator (upto 31/12/08) Coimbator (upto 31-3-11) Coimbator (upto 31/12/08) Colmbator (Texmo) upto (31-12-08)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

243

Category "D"

HP-7.5 HP, 250 LPM 65 m)

Anco Globe Mahendra upto SB Pump upto Aroma *Arihant Pump Saguna c)

Pumps (Upto 50 HP)

Palghar Mumbai (upto 31/12/08) Ahmadabad[ (upto 31/3/11) Coimbator (upto 31/3/11) Jabalpur (upto 31/3/08) Ahmedabad upto (31-3-11) Coimbator (upto 31/12/08)

MBH II a) Monoblock Pumps Centrifugal Monoblock Pump

Ahmadabad (upto 31/7/08)

Kirloskar, Jyoti, Crompton Greaves. Texmo (upto 31/12/08) Aquatex (upto 31/12/08), MBH (Upto 50HP (31.12.08)

b)

Submersible Monoblock Horizontal Waterman, Shakti, Aqua tex upto 3l.12.08, MBH (Upto 31.12.2008), Darling. Submersible Monoblock Vertical Submersible for dewatering

Centrifugal Pumps

c) d)

III)

Other makes as Approved at local level Aguatex upto 31.12.08 Modi MBH upto 31/12/08

a) b)

IV)

No Limit Up to 300 H.P

Vertical Turbine Pumps

Kirloskar, Jyoti,WPIL, M + P, Flowmore. All above

a) No Limit b) Up to 600 HP c) Up to 300 HP

V) SEWAGE PUMPS

Jyoti, M+P, FBM, Kirloskar, WPIL All above All above

a)

Submersible I) No Limit ii) upto 250 HP iii) Upto 100 HP iv) Upto 50 HP v) Upto 30 HP Kishor, Aqua, KSB All above All above Pullen MBH (upto Dec-08) All above & Jyoti Darling,(Indore) Modi (Thane) upto 31/05/08

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

244

b)

Dry Well Installation No limit Upto 100 HP Vert. Non clog Kirloskar, Jyoti, M+P, Kishor Flowmore (upto - 31/12/08) Vlowmore (upto 25 HP) (31/12/08)

VI

Vaccum Pumps

a) b)

2 a)

5 HP and above Below 5 HP

Valves Sluice valve

Kirloskar Kirloskar &, makes approved at Local level.

i) ii) iii) iv)

b)

600 mm and above 400mm dia to 600 mm dia 200mm dia to 400 mm dia. 50 to 200 mm dia.

Reflux valve

Kirloskar, IVI, IVC All above Durga (31/3/11), Gavane Patil upto 31-3-11 Mayur, Patson All above. All above

i) ii) iii) iv)

600mm dia and above. 400 mmdia to 600 mm dia 200mm dia to 400 mm dia 50 to 200 mm dia Kinetic Air Valves

Kirloskar, IVI, IVC All above, Durga (31/3/11), Mayur, Patson, Gavane Patil (31-3-11) All above All above IVI, IVC, Hawa, Mayur, Durga Kirloskar &, makes approved at local level Kirloskar IVI, IVC, Hawa, Mayur, Durga Limtorque

d) ii)

e) f) 3)

Foot Valve up to 80 mm dia Above 80 mm dia

Butterfly Valves Actuators Pipes

a)

G.I.Pipes and special C.I. Pipe and special

Zenith, Tata, GST, Suryaprakash, Jindal. Reputed makes approved at a local level. Gedore, Jhalani, Taparia Feibig, Udau. H-Guru

4)

Tools

5) 6) a) b)

Pressure/Vacuum Gauges Lifting equipments Chain pulley block monorail with travelling trolley HOT, Cranes

Elephant, W. H. Brady (5 T only) Harculas, Anupam & Smaco

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme EOT, Cranes 7 A) 1 2 3 B)

8 Motors L.T. Motors

245 W.H. Brady 5 to, Anupam & Smaco, Herculas

Horizontal Motors Vertical solid shaft motors Vertical hollow shaft motors H.T. Motors

Starters

Kirloskar, Jyoti, Compton, Alstom, NGEF, Siemens, BHEL Kirloskar, Jyoti, Compton, Alstom, NGEF, Siemens, BHEL Kirloskar, Jyoti Kirloskar, Jyoti, Compton, Alstom, NGEF, BHEL

D.O.L. Star Delta c) d) Auto transformer starter with air brake with contactor Power contactor for ATS Upto 800 Amps Upto 600 Amps Upto 400 Amps e) Soft Start Starters

L.&.T, Siemens, SEIL, Kirloskar, MEI, Chandan, Minilec L&T] Siemens, SEIL, Bhartiya India Ltd., Minilec, Kirloskar Locally fabricated as per M.J.P.'s specifications

SEIL, L&,T. Siemens All above &, BCH,Andrew Yule Havell's. Killburn, C &, S, Andrew Yule, Havell's Instronix, Electrotech System (Sangli) upto 200HP Jayshree (PUne) Innovative (Pune), Jaguar (Miraj), Crompton Greaves (Nashik)

9

Switches & Fuse

a) b) c) d) e)

Rotary iron Clad Metal Clad Fuses Switch. Change over switch on load, off load HRC Fuses

Kay(ee, L&,T, Siemens, Chandan, Thaakur Standard Stanley, Ashok, KEW, Crompton, Chandan, JSL, Standard CPI, L&,T, Elecon, Ashok, Standard, Crompton Chandan L&,T, Crompton, Control & Switch Gear, Indoasian upto 31-7-08 Havell's, Standard-1250 A, Indoasian upto 31-7-08, JSL, Control & switch L&,T, Alstom, Siemens,Standard 630A, ,Indoasian.(31-7-08), Control & switchgear

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

246

10 11

Oil Circuit Breakers MouIded Case Circuit Breake:

a)

No Limit

L&T, ABB, SEIL, Jyoti, Alstom, Andrew Yule, Havell's, Control & SwitchGear, Standard Electrical (upto 800 Amp) (31.3.11) Schneidar, JSL All above &. AEG-NGEF, Indoasi, BCH

Upto 630 AMP

12) Air Circuit Breaker

a) b) c)

13

No Limit. Upto 1000 Amp Upto 630 Amp

Vacuum Circuit Breaker

L&T, Siemens, , Control & switch gear Schneider, Jyoti, JSL All above and ABB, SGIL As above

22 Kv / 33 Kv b)

14 15 16 17

Crompton, MEI, Bhel, Siemens, Alstom, Jyoti All above & Andrew Yule, Jyoti, Megawin

11 Kv

Vacuum Contactors ELCB Water Level Guard & Single Phasing Preventor Protection Relay

Minilec Reputed makes to be decided at Local level.

i) ii) iii) iv)

18

Motor protection relay for HT motors ABB, English Electric. Minilec Motor protection relay for LT motors Reputed makes to be approved by M.J.P. at local level, Softhard (31/12/08) Over current and earth fault relay high Speed tripping Static relay

Transformers

ABB, BCH,Minilec Ashida Minilec

i) ii)

No limit Upto 3000 Kva Upto 1600 Kva

Kirloskar, Bharat Bijlee, Crompton NGEF, Alstom. BHEL, All above All above & Pactil, EMCO, All abov e& Vivekanand Bangalore[31-31 1] All above and Sonali, transformers & Rectifiers (India) Pvt. Ltd., Statelec India (31-3-11) AE, DIP, IMP, MECO., Rishabh, Ecercon, Nippon

iv) v)

Upto 750 Kva Upto 315 Kva

19

Ammeters/Voltmeters

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

247

20

Capacitors

i)

L.T.Capacitor 25 Kvar and Above

Madhav Savin, Navi Mumbai. Upto 31/7/08

ii) iii)

21

L.T.Capacitor 25 Kvar H.T.Capacitors

Sub-station equipment

All above and as approved by MSEB. Savin capacitors, Navi Mumbai upto 31.12.08. Prabodhan, Madhav

i) ii) iii) iv) 22 i)

Outdoor CT/ PT A.B.Switch (GOD)/Isolators D.O.Fuse Unit/Horn Gap Fuse Unit Lightening arrestor Cables PVC Submersible/Copper Conductor) Cable 1.1 kV armored and unarmored cable

Transdelta, Madhav, AE Pactil, Kiran, Southern-Switchgear, Atlas, Universal-switcligear. Pactil, Kiran, Southern-Switchgear Atlas, Universal-switchgear. Elpro

Finolex, Perfect, Tropodur, Finolex, Asian, Gloster,lncab, Universal, Polycab, Primecab, Vardhaman, Primecab upto 550 single core/multi Core).Vardhaman 1.5 core upto 630 Mm &, multicore upto 400 sq. mm.

ii)

iii)

1.1 kV XLPE cable

iv) v) 23

24

3.3 kV/6.6 kV/ 1 1 kV/ 22 kV/ 33 kV Tropodur, Asian, Gloster, universal XLPE cable Bharat Cab, Primecab Control Cable

Automatic Control Unit for Submersible Pump Voltage Stabilizers

Tropodur, Finolex, Asian, Gloster, Incab, Universal, Polycab, Marco (HMT brand) Bamo, Minilec(upto 31-12-08). Vidyut Control (upto 150HP)

I) ii) iii) iv) v)

25

Upto 800 kVA Upto 300 kVA Upto 150 kVA Upto 50 kVA Upto 12.5 kVA

Air Blowers

Automatic Electric Ltd. (Mumbai) AE 11 above &, Statlec 131-3-1 1] All above API (Indore) upto 30.12.08 All above & Protovolt (31.3.11) Kulkami blowers, Usha (31-3-11)

26

Worm. Helical Gear

Boxes & Geared Motors

Shanti Gears, Coimbatore, CPEC Mumbai Essenpro No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme 27

Sunrise to Sunset time limit switches for Street Light

248 Bamo (Pune) Electro-tech (31/12/08)Vidyut Control [31.12.08]as per MJ.P.'s Specification and approved equipment's only Huphen Elctrotech upto 750 K-VAR (31/12/08) (HT up to 3.3 Kv) Nippen

28

29

H.T. & L.T.Panel

Cubical metering with CT/PT

30 31 32

P.F. Correction Panel LT/HT Multimeter/Meggar Tongtester EEC approved Water Meters Original company A]Actaric Ltd-Europe. B]Water Tech.s.r.l.Italy. C) 'B' Metcr s.r.l.Italy D] Elster metering Ltd-UK. E) Miriol messtechnic Gernany F]Contor Zenner-Romania.

Registered authoris Dealer A)Actaric Ind.Mumbai. B)Chetas controll system Pvt Ltd-P'une. C) Acord Marketing &. Services,Mumbai. D) HI-Tech System & Services LtdKolkutta. E) Keyces ind.Ltd-Mumbai. F] Progressive Thermal controlls LtdFaridabad.

[All above valid upto 31-10-2009 for [All above valid upto 31-10-2009 for 15 mm to 80mm size only) 100 mm to 80mm size only.] G) Sappel SA H) Baylan -Turkey. I) Elster, U.K. J) Arad Ltd Isreal [G to H -valid upto 31-3-081 WTP Process Equipment G) Rajasthan Ind.&, scintific Corporation jaipur. H) Capstan meter (I) ltd,Delhi. I] J.V.Gokal &, Co,Mumbal. J] Technochem agencies (India) pvt ltd. [G to H valid upto 31-3-08] H.N. Bhatt Pvt.Ltd., Pune (31-3-11)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

249

SCHEDULE OF THIRD PARTY INSPECTION OF ELECTRICAL / MECHANICAL EQUIPMENT USED IN WATER SUPPLY SCHEME S.No Equipment Limits Scope of inspection 1 a) Submersible 20 HP & i) Review of Raw Materials test certificates Pumps. Above & quality control procedures. ii) Hydrostatic test iii) Performance Test. iv) Strip inspection for one random pump after performance test to check Rubbing if any Wearing ring clearance High voltage test Insulation test (before and after performance test) Dynamic balancing of impeller. b) Vertical Turbine 30 HP & I) Review of Raw Materials test certificates & Pumps. Oil / Water Above quality control procedures. lubricated. ii) Hydrostatic test on bowl assembly, discharge head, hydrostatic test on 20% quantity of shaft enclosing tubes and column pipes. iii) Performance Test. iv) Strip inspection for one random pump after performance test to check Rubbing if any Wearing ring clearance Dynamic balancing of impeller. c) Centrifugal Pump 50 HP & I) Review of Raw Materials test certificates & coupled. Above quality control procedures. ii) Hydrostatic test on casing. iii) Performance Test. iv) Strip inspection after performance test for one random pump to check Rubbing if any Wearing ring clearance Dynamic balancing of impeller. c) Centrifugal 15 HP & I) Review of Raw Materials test certificates & monoblock Pump Above quality control procedures. ii) Performance Test. 2 Electric Motor 100 H.P i) Review of Raw Materials test certificates & Above quality control procedures. ii)Routine test for all. iii) Type test for one no random motor for 300 HP and above including vibration & noise level STARTERS 3 a) Auto transformer ALL I) Review of Raw Materials test certificates & starters quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. iv) Full load test of Auto transformer winding. v) Die Electric strength of oil. vi) Fault simulation for testing protecting relays except short circuit and earth fault. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme b) Soft /Gentle starters ALL

250 I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. vi) Fault simulation for testing protecting relays except short circuit and earth fault. i) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. iv) Routine test. v) Checking phase and earth clearance of bus- bars. vi) Checking wiring diagram and contact circuit and operating of panel. vii) Fault simulation for testing protecting relays except short circuit and earth fault. I) Review of Raw Materials test certificates & quality control procedures. ii) Routine test for all. iii) Temperature rise for one number up to and including 3000 kVA and all transformers above 3000 kVA. iv) Type test excluding impulse test for random one transformer above 1000 kVA and up to 3000 kVA v) Type test including impulse test for transformer of 3000 kVA and above. i) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. Power frequency test. iv) Routine test. v) Checking phase and earth clearance of bus- bars. vi) Checking components and wiring diagram and control circuit and operation of panel. Fault simulation. vii) Review of type test certificate of breaker I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage and insulation test. iii) Checking wiring diagram. iv) Relay operation test for over current, earth fault by D.C. injection. High voltage test. vii)Reviewing test certificate of relays. I) Review of Raw Materials test certificates & quality control procedures. ii) Operation test for indication of lamp of bearing ,windings and oil

4

L.T. Panel and L.T.Breaker Isolating load break switch Panel

Connecte d load of 100 HP & Above

5

Transformer Transformer.

315 KVA & Above

6

H.T.Panel /H.T.breaker/ Vacuum contractors.

7

Relay & Metering Panel

All

8

Scanner Panel

All

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

251 iii) Hooter test with respective setting of alarm and tripping circuit. v) H.V and I.R. test. vi) Checking wiring diagram and control circuit. I) Review of Raw Materials test certificates & quality control procedures. ii) Checking components. vi) Checking wiring diagram and control circuit. v) H.V and I.R. test. I) Review of Raw Materials test certificates & quality control procedures. ii) Routine test. iii) Overload test. iv) High voltage test. v) Insulation Resistance Test. I) Review of Raw Materials test certificates & quality control procedures. ii) Routine test. iii) Overload test. iv) High voltage test. v) Insulation Resistance Test. I) Review of Raw Materials test certificates & quality control procedures. ii) Operation test. iii) Deflection test. iv) Load test. I) Review of Raw Materials test certificates & quality control procedures. ii) Body and seat test. iii) Test with operation of actuator and reduction gear box fully assembled with valve opening and closing (in case actuators are provided) with synchronizing. iv) Checking wear travel for sluice valve only. i) Review of Raw Materials test certificates & quality control procedures. ii) Body and seat test.

9

D.C. Battery and Battery charger and distribution panel.

All

10

Cables LT

300Sqmm & above & if length is 300 mtr or above 95 Sqmm & above & if length is 300 mtr or above

11

Cable H.T.

12

CRANE E.O.T.Crane / Monorail.

3 MT and above

13

Sluice Valve / Butterfly Valve

350mm and above

14

Non return valve.

15

Air valve

350 mm and above with by pass fitted if specified. 150 mm and above

16

Valve actuator

All

I) Review of Raw Materials test certificates & quality control procedures. ii) Body and seat test. iii) Operation test for functioning of small orifice and large orifice. I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. iv) Routine test and operation test. Chief Officer

Contractor

No. of Corrections

Tender Document for Bhokar Water Supply Scheme v) Operation test with limit switches. vi) Checking components diagram circuit. 17

Capacitors Capacitors

252

50 KVAR bank or above

18

Multi programmable automatic control unit/ Motor protection relay

All

I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation resistance test. iv) Routine test. I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation Resistance Test. iv) Fault simulation v) Operation test. vi) Checking wiring. I) Review of Raw Materials test certificates & quality control procedures. ii) High voltage test. iii) Insulation resistance test. iv) Routine test. v) Ratio test. vi) Temperature rise test. I) Review of Raw Materials test certificates & quality control procedures. ii) Hydrostatic test. iii) Radiographic test for welding(for Air vessel). I) Review of Raw Materials test certificates & quality control procedures. ii) Hydrostatic pressure test. iii) Calibration test. i) Review of Raw Materials test certificates & quality control procedures. ii) operation test for all equipment.

19

Voltage Stabilizer. Voltage Stabilizer.

Above 25 above

20

Water hammer control devices.

All

21

Water meters /Flow meters

150 mm dia above

22

Wireless communication equipment.

All

It must be carefully noted by the contractor that it is the responsibility of the contractor to organize the third party inspection (by approved agency of M.C.) and the contractor has to bear all expenses including inspection charges. The contractor should furnish the details of specifications / test etc. to the inspection agency and the inspection agency shall furnish the copy of inspection report to the Department and copy to the contractor.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Name of Work:- Designing, Providing Constructing and Commissioning Conventional Water Treatment Plant of 7.00 MLD capacity. GENERAL CONDITIONS GC-1 Procurement of Materials and Payment of Taxes

253

Unless and otherwise specifically provided for in the Schedule 'A' of material attached to the tender, all materials required, of the approved type, for completion of the work as per specifications, shall be procured by the contracting firm. The rate quoted for the items shall be inclusive of all costs of materials and labour and it shall also cover all taxes viz. sales tax, and local taxes such as octroi etc., that are payable by the firm under the law of land. Any increase in taxes or duties will not be paid or reimbursed to the contractor by the Dept. GC-2 Import License and Procurement of Imported Materials The Contractor may, however, offer the materials and goods which are readily available in the market or which can be made available in the course of execution, but the manufacture of assembly or spares is not done indigenously. GC-3 Acquaintance with Site Conditions and Work Conditions etc. The contracting firm shall study the site and general conditions in respect of approaches, labour, water supply, climate, quarries and the data included in the tender papers and get it verified from the actual inspection of site etc. before submitting the tender. In case of any doubt about any item or data included in the tender or otherwise, it shall be got clarified by applying in writing to the Chief Officer, Bhokar Municipal Council, 3 days in advance before the date of pretender conference. Once the tender is submitted, it shall be concluded that the firm has verified and made itself conversant with all the details required for completing the work as per tender conditions and specifications. GC-4 Change in Site Alignment or Orientation No compensation shall be paid on account of change in site, alignment or orientation of the proposed work, within the work site marked on plan attached to the tender. GC-5 Temporary Office Contractor shall provide at his cost a temporary office having area 20 Sqm with adequate office furniture at site of work exclusive for use of departmental officers, and keys of this office will remain with the Engineer -in-charge. GC-6 Water Supply for Construction and Hydraulic Testing The MC has no water supply arrangement at site. The Contractor has to make his own arrangement for getting the water supply from available source by paying necessary charges and ensuring reasonably good quality of water for work. Similarly power supply required by the Contractor for execution shall be arranged by himself at his cost. GC-7 Supervisory Staff The Contractor shall have a well-qualified Public Health Engineer and Sanitary Chemist on his establishment. He shall also engage an experienced qualified Resident who is well-versed with design aspect of R.C.C. work, to be in touch with day-to-day progress of the work and he should be authorized to receive instructions from the Engineer-in-Charge or the Sub Divisional Officer-in-Charge from time to time and shall act on them promptly. The Contractor shall, during working hours, maintain supervisors of sufficient training and experience to supervise the various items and operations of the work. Orders and directions given to such supervise or other staff of the contractor shall be deemed to have been given to the Contractor. Contractor No. of Corrections Chief Officer

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For this purpose the Contractor shall communicate to the MC, name, qualification and experience of such Engineer to be appointed for execution of this work. The Engineer-in-Charge and the Contractor, who will be responsible for this work, by whatever designation he may be known, will be specified on award of the contract, shall at least once in a fortnight inspect the work and discuss with the Engineer-inCharge on the conduct and progress of the work. GC-8 Contractor To Have a Laboratory The Contractor shall have a laboratory for carrying out test required to be conducted in connection with tender arrangements such as compression testing (Cube testing machine) sieve analysis equipment, soundness test equipment for bricks etc. Other tests should be carried out in the Govt. Laboratory at the cost of Contractor. GC-9 Work Order Book A bound work order book shall be maintained at the work site by the Contractor which will be in the custody of the MC. This will be a permanent record. The Resident Engineer of the Contractor shall sign below the orders recorded by the Engineer in charge or the Engineer-in- Charge and higher departmental officers in the token of having received them. He may take out a copy thereof if required. He will not record any remark in the work order book but may take up the matters recorded therein. GC-10 Joint Survey The contractor shall satisfy himself regarding the correctness of the layouts, levels etc., as are shown in the drawings or given in the specifications. Before starting the work he shall also carry out, at his own cost, survey of the whole work-site jointly with departmental represel1tative. Major discrepancies, if any, noticed between departmental drawings and the joint survey shall be informed in writing to the Engineer-in-Charge and got set-right by him where necessary. Such deviations as may arise out of the joint survey shall not vitiate the provisions of contract and shall not entitle the Contractor to any extra claims in any way. While tendering, the Contractor should study the site conditions and strata to be met with and the deviation in the data given by the MC and cover the actual requirement of the jobs to be provided for, while quoting the rate for the item. The safe bearing capacity for any strata will be decided by the Engineer-in-Charge generally with reference to the value given in the Public Works Department Hand Book for respective strata or by actual tests in case of doubt at the cost of the Contractor. The maximum permissible bearing capacities of different strata should not exceed the following limits. Trial pit results are indicative. i) ii) iii) Soil Average Murum Average Rock 5 M. T/Sq.M. 20 M.T./Sq.M. 40 M.T./Sq.M.

GC-11 Layout & Checking The Contractor shall provide all labour, skilled and unskilled and all materials needed and shall himself carry-out, as directed survey, lining-out, setting out, checking of works, taking measurements, testing of hydraulic and other structures, without any extra cost. The Contractor will also provide proper approach and access to all the works under execution and stores without any extra cost. GC-12 Reference Points After the joint survey has been plotted and approved by the Engineer-in-Charge, permanent base lines, cross lines, and bench marks shall be established by the Contractor so as

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to serve as reference points and dimensional control of works. He should prepare and submit a plan showing such reference points with their full description. GC-13 Programme Of Work The Contractor shall furnish to the Engineer-in-Charge within two months from the date of order to start the work, a programme indicating progress to be achieved for completion as per contract agreement. The progress schedule shall be in the form of bar charts, statement forms daily out-turn of quantities. Should the programme be found defective in any respect or impracticable the same shall be modified as required. Should the actual progress of work lag behind at any stage, revised programme by accelerating the progress to be achieved shall be drawn up, keeping the target of completion unchanged. The proportionate programme schedule should be roughly as under: 1) Aeration fountain, flash mixer with clariflocculators, chemical house with equipment and drainage arrangement including testing of the units 2) Remaining clariflocculators (if any) with independent bypass arrangement including testing of the units. C. C.T.P.W. S. wash water tank 3) Filters and remaining items Within 9 months from the date of work order.

Within 12 months from date of work order.

Within 5 months from the date of work order.

4) Trial, testing and commissioning of the To be started in the 15th month and whole plant. completed by end of 18th month from the date of work order. 5) Trial run under item (24) This shall start after satisfactory trial and testing as mentioned above

Normally a period of about 1 to 1.1/2 month will be required for scrutiny of and getting approval of the competent authority to the design and detailed drawings from the date of receipt form the. Contractor by all concerned. The Contractor shall be fully responsible for the delay that would be caused in scrutiny of and giving approval to the design and drawings due to their being incomplete, shabby and haphazard manner without any illustrative dimensioned sketches in design and due to nonsubmission of reference book called for. No extra time limit, shall to granted on account of legitimate time required in carrying out the scrutiny as mentioned above by the department and due to improper design and drawings submitted by the Contractor. GC-14 Approval For Materials To be Used Samples in large enough quantity of materials and descriptive data therefor requiring prior approval shall be furnished by the Contractor to the Engineer-in-Charge in good time before the collection of such materials and equipments so as to permit inspection and testing. The same shall be properly marked to show the name of the materials, name of manufacturer, place of origin and item for which it is to be used. Only on approval, the material of approved quality shall be brought on site. Samples approved shall be on exhibition at all time, properly stored and prevented from deterioration for purposes of comparison with the materials brought on site of work from time to time for use on work. While materials are being brought at site, samples thereof will be continuously tested to verify if they are according to specifications and Contractor No. of Corrections Chief Officer

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such lots of them which are below specifications shall be rejected and shall forth with be removed From the site of work. GC-15 Satisfactory Completion Of Various Items The sub-works included in the schedule of work are job works. The various items of the sub-works are to fit in perfectly in the whole plant physically, hydraulically and architecturally so as to form effective working parts of the whole plant as per specifications. Each sub-work will be considered as complete when it is completed as per specifications and put into commission as per standard as a successful component part of the whole plant. The Contractor will have to use on site best quality of material approved by the Engineer-in-Charge and no claim shall be entertained in case desired quality of material is required to be brought From the longer distance. GC-16 Checking Quality Of Work The Contractor shall, at any time during continuance of the contract, offer sample of work done or, if necessary, pull down a reasonable part of the work enough for such inspection and testing as the Engineer-in-Charge may direct and the Contractor shall make good the same at his cost and to the satisfaction of the Engineer-in-Charge with out any extra cost. Sampling and testing of routine concrete work and other civil work, items shall be done in accordance with N.B.C. practice and I.S.S. to the satisfaction of the Engineer-in-Charge. GC-17 Inspection Though the offer is on lumpsum basis, the Contractor shall give not less than seven days notice in writing to the Engineer-in-Charge about the work which is proposed to be covered or placed beyond the reach of inspection and verification of sizes for doing the same. If any work is covered without such written notice, the same shall be uncovered at the cost of the Contractor and in default there of no payment or allowances shall be made for such work. These requirements apply for the component items executed for the sub-works for which lumpsum is quoted. GC-18 Use Of Steel The Contractor shall use tor/mild steel conforming to IS 17886-1979 and IS 432-1966 or latest edition, etc. which shall be of standard tested quality and grade I type, acceptable to the MC. The lv1JP shall get the steel tested at the cost of Contractor and permit its use if the stresses are within limits as per relevant I.S.S. Steel not satisfying the requirements shall be rejected and shall have to be replaced with quality steel. The mild steel plate to be used for manufacture of pipes should be of tested quality and manufacturing of pipe should be as per IS. 5504 of 1969 with latest modifications. GC-19 Extra Item It is binding on the Contractor to carry out such extra work pertaining to the complete work and as will be ordered by the Engineer-in-Charge. The payment for this would be decided on the basis of sanctioned schedule of rates of the Division or accepted rate analysis on actual cost basis as would be approved by the competent authority. In this regard the decision of the Chief Officer will be final and binding on the Contractor. GC-20 No Interest On Dues No interest will be payable by the MC on the amount due to Contractor pending final settlement of claims. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme GC-21 Disposal Of The Excavated Materials

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All materials obtained from any excavation as required to be carried out under this contract will be the property of MC and the Contractor shall not have any claim on it. The excavated stuff if approved by the Engineer-in-Charge can be used by the Contractor free of cost for the construction of this work. The surplus excavated material remaining after the use of other items shall be transported outside within a lead of 1.00 kms. and disposed off as directed by the Engineer-in-Charge without any extra cost. GC-22 Action In Case Of Non-Compliance Failure to comply with the foregoing conditions will result in MC taking action at the risk and cost of the Contractor. Submission of the tender binds the Contractor for complying with the requirements of the MC conditions and specifications without any extra payment. GC-23 Tender To Be Strictly According To The Tender Conditions & All Other Specifications It should be clearly noted that tenderer has to strictly comply with conditions and specifications laid down in this document and the clarifications given in wirting on and after the pre-tender conference. No variations are permissible at the time of tendering. GC-24 Housing & Foodgrains For Labour The Contractor shall be fully responsible for making arrangement entirely at his cost for housing all labour employed by him and make necessary satisfactory arrangements for the same as may be required under rule and laws of State, Central Govt. or local body. All the rules regarding minimum wages, workmen's compensation and other labour acts, etc. shall be binding on the Contractor without any claim on the MC. So also foodgrains for the labour shall be arranged for by the Contractor where it is not available in open market. GC-25 Accidents On The Works The Contractor shall be fully responsible for any accidents that may occur to the labour on his work on duty and report the same to the Engineer-in-Charge and concerned Government Labour Department, or Authority and shall pay all necessary compensation as per rules. The Contractor shall insure the work site as well as the labour as per rules. GC-26 No Refund Of Octroi Duty & Royalty Charges In respect of provisions made in Clause No. 35 of the printed conditions of agreement form, it is to be made clear that octroi duty and royalty charges paid to the local body or Govt. on materials brought against this tendered work will not be refunded. Royalty no-dues Certificate of the material used on work should be brought by the contractor from the Ha'ble Divisional Officer, Bhokar. After Submision of the no-dues certificates final bill will be paid to the contractor. GC-27 Income Tax 2 % on gross value of each bill shall be deducted towards income tax and certificate to that extent shall be issued by the Engineer-in--Charge. GC-28 Acceptance by Designer/Consultants/Equipment Suppliers Contractor while submitting the tender shall furnish name/ names of the process designers/ consultants for the hydraulic and process design of the plant as also the names of the structural designers along with their qualifications, experience in the Contractor No. of Corrections Chief Officer

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field addresses and written consent letters From the designers for agreeing to design the treatment plant. Consent letters From the process designers/ consultants should indicate the works of such type of capacity not less than half the required MLD. Water treatment plant at one place designed by them and satisfactorily commissioned with documentary evidence of having done so and reference certificates From the authorities for designing and satisfactorily commissioning of such filtration plants etc. The Contractors should indicate also the names of the manufactures and erectors of mechanical equipment for water treatment plant of capacity of at least half the required MLD at one place together with their consent letter of having agreed to supply, erect or supervise erection with satisfactory commissioning. The Contractor, process designers/ consultants and manufacturers of mechanical equipment should produce an agreement on stamp paper worth Rs.20 (minimum) having agreed to jointly design, construct and satisfactorily commission the water treatment plant and take joint responsibility to rectify the defects during guarantee period. GC-29 Responsibility of Contractor For Design, Drawing & Work Even through the design and drawings are approved by the competent authority of the department, the Contractor shall be fully responsible for the technical and arithmetical correctness and soundness of the design and drawings and for the safety of the works executed on the basis of such approved design and drawings and to be damages and failure, etc. of the of the works so constructed whether due to bad workmanship or faulty design, and shall on no account claim any compensation and repairs or reconstruction to such damages or failure of the work. It shall have to be done by the Contractor entirely at his cost. GC-30 Design & Construction Of RCC Works 1) RCC Design shall be based on 1.S. Code of Practice and following are the relevant 1.S.S. for safe permissible stresses and other details. Detailed design criteria is enclosed separately. IS 456-1978 Table VI I.S. Code of Practice for PCC and RCC (IInd edition) I.S. 875 I.S. Code of Practice for structural safety of building and loading standards (revised). I.S. 3370 - Part I to IV IS Code of Practice for water containers. I.S. 1893-1975 for Seismic Loading (latest edition) I. S. 13920 - 1993 for ductile reinforcement

a) b) c) d) e)

Note: Modular ratio 'M' shall not be greater than 2800/3 fc where 'fc' is permissible compressive stress in concrete due to bending. The basic design requirement, criteria and dimensions mentioned hereafter shall be strictly adhered to: The intending tenderer should acquaint himself thoroughly with site conditions as well as the needs of Municipal Council, before tendering and designing the structure. Grade of cement concrete for RCC works for various items shall be as under: Item For all the members such as columns, braces, and the members coming in contact with water Contractor No. of Corrections Grade M-200 Nominal Mix 1:1.5:3

Chief Officer

Tender Document for Bhokar Water Supply Scheme 2) 3) RCC slab shall not to be less than 100 mm in thickness.

259

The above Indian Standards current on the date of tender shall be applicable to the design of structure. Item not specifically covered by the Indian Standards Code of Practice reference shall be made to relevant standard specifications. If none of the standards have provision on any item relating to design, the decision of the Chief Officer of concerned MC Circle, in such matter shall be final and binding on the Contractor.

4) 5)

Wind Loading : Provision shall be made in the design for the basic wind loading at the rate of 100 kg/sqm. of exposed area of water tank and staging. Seismic Loading : Provision shall be made in the design for seismic loading as per the zone III/IV of I.S. 1893 (latest edition) for which the seismic acceleration coefficient is 0.04 and the importance factor 1.5 is applied to this. Thus, basic seismic acceleration coefficient to be adopted in the design is 0.06 G and this is obligatory. The minimum depth of foundation for individual footing should 11ot be less than 2.00 M. In case of raft foundation, it should not be less than 3.50 M. . Free Board : Minimum tree board required from soffit of beam/slab should not be less than 30 cms. The tank foundation and other members shall be designed for tree board full condition. Age factor : Age factor should not be considered for design. For structure having more than 6 columns internal braces are obligatory. One set of brace should be provided at ground level and is obligatory. 1.0 M wide gallery should be provided at floor level which should be designed for a load of 500 kg/sqm. Also minimum one metre gallery should be provided at roof level. One spiral staircase shall be provided up to gallery at the roof level for ESR. Thickness of container member shall be checked for non-cracking check.

6) 7)

8) 9) 10) 11) 12)

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme Name of Work:- Designing, Providing Constructing and Commissioning Conventional Water Treatment Plant of 7.00 MLD capacity. GENERAL SPECIFICATIONS GS-1 Specifications Of Work

260

The work shall be carried out as per practice and procedures laid down in National Building Code of Practice and relevant l.S.S. updated for respective items and Public Health Engineering . Manual on Water Supply published by Government of India and as directed by the Engineer-in-Charge. GS-2 General Description & Location Of Site The proposed water treatment plants are to be constructed in __________________ ___________________________________________________________________ ___________________________________________________________________ General contoured layout plant of the proposed sites are attached. The Contractor will have excavate the site to requirement as per approved layout without claiming extra cost. GS-3 Source Of Raw Water Supply The source of raw water is _______________________________________. GS-4 Quality Of Raw Water The result of chemical and bacteriological analysis of samples of raw water From the source are given in the statements vide appendix enclosed with the tender. These results are only for guidance. As regards the requirements and the scope of the water treatment plant the Contractor should carry out samples tests independently at his cost verify the data given for the design. The turbidity of raw water in parts per million is given as below: 1) 2) For a few days during monsoon (maximum) - 1000 to 2000 PPM. approx. During non-monsoon days-less than 150 PPM.

GS-5 Motive Power The Contractor shall communicate the total electrical load required for successful operation of the water treatment plant offered, within one month from the date of getting the work order. This electric load shall include lighting load for inside and outside light points, etc.. attached to the building structures properly. The electric supply required by the Contractor for the purpose of execution and erection of machinery and equipment shall be arranged and paid for by him. Electric power supply required for the plant shall be submitted within 3 months From the date of work order. GS-6 Proposed Work & Scope Of Tender The proposed water treatment plant consists of the following sub-work together with allied items complete in all respects so as to be effective and successful parts of the water treatment plant as a whole. a) b) One aeration fountain (cascade type) and a raw water channel with measuring venturi flume to deal with a flow as given is the data Sheet.. Flash mixer of adequate detention period, not less than thirty seconds for each unit with mechanical equipment to deal with a flow as given in the data sheet A clariflocculator of 2.50 hours detention capacity each with mechanical No. of Corrections Chief Officer

c) Contractor

Tender Document for Bhokar Water Supply Scheme equipment to deal with a flow as given in data sheet. d)

261

Rapid sand gravity filters (minimum 2 beds) to deal with a flow as given in data sheet complete with porch, entrance hall, air blower room, office, laboratory two toilet units, etc. Mechanical equipment required for the operation of the treatment works as specified in the items and specifications. One over head wash tank of capacity equal to 600 Ltr./Sqm./Min. of filter bed area +10 Cum. for other utility as described under para DS-7 of detailed itemwise specifications. Minimum two sets of air blowers with motors for treatment plant. By pass arrangement for each unit. Two vacuum type chlorinators - one for pre-chlorination and one for post chlorination. Alum and TCL solution tanks, chemical house and stores. Emergency disinfection arrangement of TCL solution tanks. Electrical installations for all unit for power and lighting including yard lighting on industrial pattern. Waste water and sludge collection and disposal. Laboratory equipment and glassware and miscellaneous items. Independent sanitary blocks on ground floor of filter house. Pure water sumps of one hour capacity of designed flow and pure water pump house by the side on sump. Dressing and leveling of site and internal asphalt roads. Pumping machinery for wash water for Treatment Plant.

e) f)

g) h) i) j) k) I) m) n) o) p) q) r)

GS-7 Basic Data The proposed water treatment plant shall have normal supplying capacity of 7.00 MLD / 24 Hrs. Other obligatory conditions for hydraulic design shall be observed. GS-8 a) Foundations, Conditions & Prescribed Bearing Capacities The tenderer shall verify the bearing capacities by taking actual trial pits on site and refilling them afterwards, at points required by him at his own cost. The foundation levels shall be decided by the Contractor for the various works proposed. All structures shall rest on hard foundation with bearing capacities as indicated elsewhere. Filling required to be done to get foundation leveled for receiving bed concrete shall be done in cement concrete (M-100 grade/U.C.R. masonry in C:M 1:6). Bedding course of M-150 grade not less than 15 cm. in thickness shall be provided for foundation of all structures including brick wall foundation without any extra cost. If the work is to be done on hill portion the Contractor shall have to take proper care of retaining the slopes of excavation and if required he shall construct guide/ retaining walls, so as not to endanger the structure or part of the structure due to movement of materials of excavation on slopes or of cut part of excavation. No. of Corrections Chief Officer

b) c)

d)

Contractor

Tender Document for Bhokar Water Supply Scheme GS-9 Sub-Soil Water

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The Contractor should investigate the possibility of meeting the sub soil water and design the structure accordingly. The tender rates shall be inclusive of bailing out of sub-soil, water seepage, rain, gutter or any type of water to any extent during excavation and construction, etc. till completion of the whole work. GS-10 Layout & Statement To Be Submitted With The Tender A) Layout : A tentative layout of the treatment plant should be submitted. The layout should only indicate the positions of the different units of the treatment plant of total capacity as indicated in data sheets. Other Statements & Drawings : The departmental contoured layout plan attached to the tender is indicative only and just for the guidance of the Contractor. Ground levels are not binding on him except for obligatory levels. Other architectural drawings for units are for reference and style shall be more or less same to these aesthetics. The successful Contractor may suggest after award of contract any changes of architectural style. The MC may accept other architectural treatment. Lip of Aeration Fountain FSL of Pure Water Sump As per data sheet As per data sheet

B)

The Contractor shall prepare and submit his own drawings with the tender as under: i) ii) Statement showing the detention periods adopted and calculations of capacities and sizes of various proposed units of the works. Contoured layout plan showing clearly the works tendered for and limits of contract work stating clearly how it is more attractive from aesthetic and functional, accessibility and compactness and structural points of view as compared to the departmental layout. The alternative will be considered, should it result in material saving in capital cost without effecting the above points. Elevation - both front and rear side of the contracted work - shall be as per general and architectural requirements. Relevant sections - both front and rear side of the contracted work - shall be as per general and architectural requirements. Plans at various levels to clarify the offer given. Flow diagram showing levels of water in various structures and the levels of the structures themselves showing the details of the various units included in the tender to give complete idea as to what the tenderer has offered. Drawing showing general electrification of the plant as a whole.

iii) iv) v) vi)

vii)

Note: All the tender drawings will be treated as tentative as far as structural provisions are concerned, but leading dimensions as will be given therein will be taken as minimum obligatory requirements and deficiencies, if any, found functional, technical and departmental obligatory requirement and deficiencies, if any, found from functional, technical and departmental obligatory requirement point of view, shall have to be rectified and made good in the working drawing as pointed out by the MC during the course of execution without any extra claim.

Contractor

No. of Corrections

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GS-11 Detailed Structural & Hydraulic Design Calculations, Layout, Flow Diagram & Detailed Working Drawing & Record Drawings i) After the tender is accepted and the work order issued, the Contractor shall submit ten copies of his original tender drawings including plans for issuing certified true copies of accepted tender to all concerned without claiming any extra cost within 30 days of the receipt of approval to the layout and flow diagram. After receipt of work order and before proceeding with any detailing and structuring the various components of the work under the contract, the Contractor shall first prepare and submit a layout plan to a sufficiently large scale and also flow diagram showing the water levels in the various units in duplicate to the Engineer in charge and simultaneously one set to the Chief Officer within seven days time and get it approved. After getting approval to the above, the Contractor shall prepare and submit capacity calculations, structural, R.C.C. and hydraulic design calculations and detailed working drawings showing plan, elevation, section etc. for each unit of the water treatment plant and reinforcement at every junction for R.C.C. work in six copies to the Engineer in charge within 30 days from the date of getting approval to the layout plan and flow diagram. . The design shall be based on standard recognized reference books and shall be as per standard Engineering Code of Practice and as per current I.S.S. and it shall indicate the reference of the standard reference books adopted, giving page number, etc. for method of design adopted and formulae that are followed, for easy and quick checking of the design. The said reference books shall also be made available for reference and checking whenever called for. The design calculations shall elaborate and step-by-step without any omissions and with illustrative dimensional wherever required for clarification and easy checking. Any modifications, alterations in levels, design calculations and detailed drawings to be carried out as a result of compliance of scrutiny remarks of competent authority shall be carried out and submitted afresh by the Contractor, if called upon by the concerned authorities in the manner indicated in para (iii) above without claiming any extra cost. The actual execution of work shall be started by the Contractor only after receipt of approval to the design calculations and detailed working drawings from the competent authority. If any provisions in the design and constructions are found to inadequate or faulty. necessary modifications shall have to be carried out at any stage upto the period of refund of security deposit without claiming any extra cost. After completion of the work in all respects, the Contractor shall submit ten sets of complete record drawings of all the works as constructed with the stamps "RECORD DRAWINGS" before clearance of the final bill without claiming any extra cost, failing which the final bill shall not be paid. Similarly the duplicate photocopy of the tracing film of all record drawings shall be submitted to the Engineer in charge for record. Itemwise Break-Up For Interim Payments This shall be as per break up schedule of payment attached (vide appendixH)

ii)

iii)

iv)

v)

vi)

vii)

viii)

GS-12

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme GS-13 Hydraulic Test, Deposit i) ii)

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For water-retaining component of civil structure, 7% of civil cost will be paid after . hydraulic testing as per schedule of break up of payment. a) Only 80 % of the probable reasonable cost of the mechanical and electrical equipment as assessed by the Engineer-in-Charge will be payable on the receipt of the same on site of work with workshop painting and accepted by the M.C. Further 10 % shall be released on erection, trial run and site painting. Balance 10 % will be released on the satisfactory performance as accepted by the MC specified elsewhere.

b) c)

GS-14 Desired Performance Of The Water Of The Water Treatment Plant The filtered water shall conform to the following requirements a) i) ii) iii) iv) v) Physical Quality & Requirement The filtrate should be clear with the turbidity less than 1 unit on J.T.U. Scale. The filtrate should be free from colour with maximum unit of 3 on platinum cobalt scale. The turbidity of the settled water from the clariflocculator shall not be more than 20 units on J.T.U scale and preferably 10 J.T.U. The filter run should not be less than 24 hours. The wash water consumption should not exceed 2% of the quantity filtered as counted on the average of the year's working. This will be observed during the performance period of 12 months. The duration of wash should not normally exceed 10 minutes. The water on the bed at the close of wash should have a turbidity not exceeding 10 units on J.T.U. scale. At the commencement of filter run after wash, the initial loss should not be more than 30 cms. Taste and odour : There should be nothing objectionable or disagreeable as regards taste and odour, upto a temperature of 45° C (atmospheric). Chemical Quality pH value of the filtrate should be between 7 to 8.5. The iron as Fe should be upto 0.1 to 0.3 mg/litre and nitrites should be absent. The break point chlorination of the filtrate water should be less than 3 PP.M. at the maximum pH range.

vi)

vii) viii) b) i) ii) iii)

Note: The above standards should be as per CPHEEO Manual, depending on raw water analysis. c) Bacteriological Standards Coliform count in any sample of 100 ml should be zero. The filtrate shall satisfy all the four criteria indicated below: E-Coli count in 100 ml of any sample should be zero. Coliform organism not more than 10 per 100 ml shall be present in any sample. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

265

Coliform organism should not be detectable in 100 ml of any two consecutive samples or more than 50 % of the sample collected for the year. Throughout any year 95% of samples should not contain any coliform organism in 100 ml. d) Filter Outlet Controller The filter outlet controller should be designed for an occasional overload of 50% of its rated capacity hydraulically. e) Other standards should conform to CPHEEO Manual on Water Supply and treatment (latest edition). The Contractor shall undertake the necessary sampling and testing at his own cost to prove that the filtered water conforms to the above requirement. After consultation with the Contractor, the sampling procedure shall be as directed by the Engineer-in-charge prior to the commencement of the commissioning of the plant. GS-15 Water Tightness Test For Structures All the hydraulic structures (water-containers such as pretreatment units, filter-box, wash water tank, chemical tanks, channel etc.) will have to be tested for water tightness by filling them with water upto their designed full supply level. Similarly the pipe lines will have to be tested hydraulically. Masonry or R.C.C. structures such as pre-treatment works, filter box, wash water tank, chemical tanks and channels will be considered as water-tight only when the reduction in the water level from F.S.L. is not more than 6mm in 48 hours. The sides of underground structures should not be refilled till the satisfactory hydraulic test is given. In case of structures above ground, the outside surfaces of the structures must be bone-dry with water upto F.S.L. inside. In case of dispute, the decision of the Chief Officer shall be final. The hydraulic tests shall be given at the end of completion of each item and structures kept full of water upto the time of commissioning without claiming any extra cost, in order to avoid hair cracks if kept empty for a long time. As regards the pipe lines the tests shall be performed for the working pressure of water head equivalent to 1.5 times the prescribed working pressure for the pipes used. The Contractor will have to give all these hydraulic tests by making his own arrangements for water supply and filling and disposing of water. All materials, test pump, caps plugs etc. required shall be arranged by the Contractor at his cost. Contractor shall rectify the defects noticed and carry out the test again and repeat the testing operation till successful result is obtained and accepted by the Engineer-inCharge. The offer quoted for the work shall be considered as inclusive of cost of all labour and material and plant required to give successful test for water tightness. GS-16 Use Of Sand The sand to be used for the works shall be got approved from the Engineer -inCharge. GS-17 Use Of Bricks The bricks to be used for the works shall be got approved from the Engineer -inCharge. GS-18 Use Of Metal Only graded metal from trap/granite/quartzite black basalt should be used from quarry approved by Department. All tests shall be carried out for the quality of metal in the approved testing laboratory. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme GS-19 Commissioning & Trial Run Period

266

After completion of the work in all respects the whole plant shall be run on trial basis by the Contractor for a period of three months or more as may be necessary after the acceptance of completion by the Engineer-in-Charge. This commissioning period of three months shall include two months during monsoon season and one month in fair season. During this trial run period, the cost of chemicals and electricity will be borne by the MC. GS-20 Performance Period The performance period shall be 12 months & will be counted after satisfactory trial run period. During this period the contractor shall supervise the operation & maintenance work by deputing one supervisor from contractor. During this period, the plant will be run by MC/ Local bodies staff & chemicals/electrical energy & other consumable charges shall be borne by MC/Local body. The special security deposit of 1% of contract amount shall be recovered through R.A Bills towards performance & same will be refunded after expiry of performance period. GS-21 Defect Liability Period The Contractor shall stand guarantee for the successful operation and maintenance of the whole plant for a period of 5 years towards defect liability which includes performance period of 12 months from the date of starting of the performance period, during which time any defects and short-comings noticed due to faulty design of the plant, defective mechanical and electrical equipment or defective construction will have to be made good to the entire satisfaction of the MC/Local body without claiming any extra cost. During the guarantee period the MC will bear the cost of chemicals and energy. 10 % security deposit will be released after end of defect liability period. GS-22 Mechanical Equipment All the mechanical equipment required for efficient working of the plant shall be provided of robust and durable type conforming to relevant I.S.S. specified for the constituent material and construction. This includes the cost of labour - skilled and unskilled - tools, lifting tackle, valves, controlling devices, prime-movers, etc. The material used for the various items shall be specially selected for the job and should be durable and of best quality and proof against physical and chemical illeffects as a result of the quality of weather coming in its contract. The valves upto 300mm. dia shall be manually operated without spur gear arrangements. The valves of size above 300mm. dia. shall be manually . operated but with spur gear arrangements. The design of gearbox (spur/worm) shall be got approved from the Engineer -in-charge. All the C. I. head stocks/wheel of sluice valves etc. shall be smooth finished, so that on painting they present a smooth appearance. They should be painted with synthetic enamel paint of approved quality. GS-23 Storing Of Gas Cylinders The general arrangements shall conform to latest bylaws for gas storage by the Central Government. The Contractor will have to use the cylinders during the operation and maintenance period; and he shall obtain the regular license for using the Chlorine gas cylinders from the Competent Authority from the Central Government, under the relevant laws. (Chief controller of explosives, Mumbai) All necessary documents required for getting license from competent authority will be provided by MC. The license will be Subsequently transferred in the name of the Engineer in charge. The general arrangements shall be got approved from the Chief Controller of Explosives, Bombay. Two gas cylinders of capacity 1 MT each shall be supplied by the Contractor for each plant. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme GS-24 Spare Parts

267

The Contractor shall supply before commencement of trial run particulars of spare parts required to ensure operation of the plant. The name of the firm supplying the spare parts with trade number and probable annual average delivery period should also be mentioned in the list of spare parts, failing which the final bill shall not be released.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Name of Work:- Designing, Providing Constructing and Commissioning Conventional Water Treatment Plant of 7.00 MLD capacity. STATEMENT OF BASIC DATA VIZ. OBLIGATORY REQUIREMENTS OF THE \VORK

268

The water treatment plant shall be in R.C.C. and designed by the contractor at his own cost with the following obligatory data. OR-l Rated Capacity The capacity of the plant as a whole, for individual units as per Schedule 'B' and specifications. The rated flow through the plant shall be as per data sheet. OR-2 Layout Of Plant As per contractor's design, within the boundaries of the enclosed contour plan, the layout shall be such as would give the whole plant an aesthetic appearance. It shall not, however, affect beauty of the architectural treatment given to the face of central filter house building. The MC reserves the right to modify the layout, if considered necessary. The layout of plant shall indicate internal roads. The layout of the plant shall be as compact as possible. The contractor shall have to construct the treatment plant for capacity as per data sheet and in accordance with the detailed specifications. OR-3 Scope Of Work The scope of work shall be as per contract limit marked on layout and as mentioned below The work shall start 15 M ahead of Aeration Fountain as specified in the specifications and end at the last manhole of drainage system. Incase of distribution from pure water sump, distribution outlet piping should be limited to 15 M excluding control valve. The length of horizontal MS/CI pipe from the face of vertical inlet pipe to aeration fountain shall be 15 M without any sluice valve. The design of contractor must include all units of Water Treatment Plant as per Schedule 'B'. OR-4 Levels The lip of aeration fountain and F.S.L. of main pure water sump shall be as per data sheet which are obligatory. The Contractor should ascertain the actual strata met with though the trial pit results gjven. OR-5 Foundation i) ii) The structure should be founded on hard strata and minimum depth of excavation in hard strata shall be not less than 0.60 M. Bearing capacity figures indicated are tentative and the contractor has to verify the same during execution and base the foundation suitably. No extra payment on account of change in strata or in bearing capacity will be entertained. The offer of the contractor shall include excavation for all the units of the plant as per Schedule 'B' in all types of soft and hard strata by any or all means, including all leads and lifts involved in the work as per actual requirement at the site. It shall also include bailing or pumping out water, right from commencement of work till its completion in ail respects for the entire plant units as per Schedule 'B'. All machinery, T & P, manpower, etc. required for this job shall have to be provided by the contractor at his own, cost. All the structures should be checked for seismic action for safety and stability.

iii)

iv)

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme OR-6 Type Of Construction Reinforced Cement Concrete: Cast-in-situ. To be based on following I.S.I. specifications: i) ii) iii) iv) v) vi) IS-456/1978. IS-3370-1965 Part-I, Part-II & Part-IV IS-1893 -1975 (Latest Print) IS-875-1964.

269

National Building Code of Practice, Government of India Latest edition, Publication of I.S.I. Any other I.S. specifications, not mentioned above but relevant in the design construction., etc. shall be made applicable. For such application no extra claim shall be payable to the contractor.

OR-7 Construction The construction shall be carried out at per (a) Relevant current I.S.S. (b) Abstract of specifications given in Appendix A-I incorporated as per Standards Specifications Book. 1972 edition, Government of Maharashtra Publication (c) National Building Code of Practice (d) Relevant chapters of PWD. Hand Book. Note: In Case where alternatives are mentioned in publication for design as well as construction purpose, the approval of the accepting authority of the tender shall have to be obtained for the particular alternative proposed to be used by the contractor. IfMC does not agree to that alternative, the contractor shall have to adopt the alternative as suggested by the MC without extra cost. OR-8 General Requirements To Be Provided For In All The Structures Besides Those enumerated In Schedule 'B' & Specifications i) ii) iii) iv) For Civil Work: For all civil works the requirements as laid down in Appendix 'A' of these tender document shall have to be scrupulously followed. For Mechanical Works: The requirements as laid down in Appendix 'B' of these tender documents shall essentially govern the offer of the contractor. For Electrical Works: The specifications laid down in Appendix 'C' of these tender documents shall be binding on the contractor wherever relevant. For Architectural Works: The offer should include architectural treatment to the entire plant structure to give an elegant look to the complete premises. The Contractor shall workout details so as to offer elegant look. OR-9 Use Of Tor/Mild Steel For RC.C. Members Tested mild steel round bar grade-1 (IS 432) or for steel (IS 1786) shall be used. OR-10 Specific Requirements To Be Provided For In The Design Of Structures i) All members of the structures in contact with water shall be in R.C.C. grade (M-200 or higher grade). In case of vertical walls or water retaining structures the portions of walls above F.S.L. and slab covering or incubating water shall also be of the same grade as that of the portion below it. The minimum thickness of such members shall not be less than 15 cm or design requirements. This is not applicable for small channel walls, roofs, flocculator wall of clariflocculator which should satisfy the design requirements. Wherever partition walls are provided in water retaining structures, these shall be designed for the conditions with one compartment as full while adjacent as No. of Corrections Chief Officer

ii)

Contractor

Tender Document for Bhokar Water Supply Scheme empty, wherever such condition is applicable. iii)

270

The side walls of water-retaining structures shall be designed for the worst conditions such as a) b) c) Tank full conditions without earth filling from outside. Tank empty conditions with submerged earth pressure from outside. There shall be no counter-forts coming inside the structures.

OR-11 I) a) b)

Unitwise Obligatory Details For Hydraulic Design Aeration Fountain (Cascade Type) Capacity Area to be provided (excluding area of central inlet shaft) c) d) e) Minimum number of Cascades Minimum drop Minimum rise of step Collecting channel 4 Nos. 0.8 to 1.0 M 20cm Peripheral to the aeration fountain free fall from last step to channel shall be 20 cm.) Not less than 30 cms. 1 M/Sec. to 1.25 M/Sec. (Maximum) CI As per data sheet 1.20 M. wide (minimum) connected to other component RCC As per data sheet Not more than 0.6 M/Sec. 0.75 M. (Maximum) 0.3 M. (Minimum) 1.2 M. wide (Minimum) gallery connected to other components. RCC As per data sheet At the rate of 0.625 m2/rnld

f) g) h) i) j) k) II) a) b) c) d) e) f) g)

Free Board Velocity Inlet of fountain R. L. of lip of Aeration Fountain Peripheral walkway Structure Parshall Flume Capacity Velocity in channel Loss of head Free Board Access Structure Measuring device

Simple flow meter with dial type indicator for measuring the flow of raw water for minimum 100 cum/hour and maximum 500 cum/hour accurate in reading upto 20 cum/hour shall be provided and fixed. Float chamber to have a drain valve and draining arrangement

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme III) Distribution Chamber

271

A distribution chamber shall be provided before or after flash mixer for the treatment plants of capacity 25 MLD or more for distributing flow equally to both clarriflocculators. IV) Flash Mixer a) b) c) Type Detention period Outlets in separate R C. C. chambers with proper discharge regulating arrangements. R C. C. Circular Not less than 60 seconds One for each clariflocculator designed as to carry required MLD discharge with maximum velocity of 1.8 M/Sec. for normal flow, the velocity should be minimum 0.8 M/Sec. not more than 150 and should be suitable for achieving required G 0.50 M. for normal flow G = 300 sec.-1 Not less than 3.00 B.H.P. Design calculation of flash mixer to be submitted for approval. 0.4 M (maximum) 3.5 M. (maximum) Stainless Steel 1.2 M. wide (minimum) peripheral walkway connected with other components. 6 mm thick M. S. sheet cover for motors

d) e) f) g)

R.P.M. of blade Free Board Value of G to be achieved Prime mover

h) i) j) k)

Loss of head Side water depth Shaft and Blade Access

l) V)

M.S. Covers for motors

Clariflocculator a) No. of units and type i) Rated flow ii) Detention Period i) Flocculator ii) Clarifier 30 minutes 2.5 hours detention time minimum excluding sludge storage capacity upto side water depth. 1 No. radial flow As per data sheet

Note: Capacity below clear side water depth of the clariflocculator shall not be considered. c) d) e) Contractor Side water depth Free board Floor slope Inlet shaft 3.50 M. maximum Not less than 0.50 M 1: 12 slope shall be towards central sludge pocket only. RCC of adequate capacity, with velocity No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme between 0.8 M to 1.8 M range. f) g) h) Surface loading Weir loading Type of weir

272

40 Curn/Sqrn/day i.e. with overloading. 200 to 300 overloading. Cum/M/day i.e. with

Peripheral launder and 6mm thick M.S. right angle V-notches to give clear overfall in the launder painted with Ciba Gaygi epoxy paint Not more than 0.3 M/sec. Not less than 2 BHP Not less than 3 BHP

i) j)

Velocity at the weir Prime mover i) For blades ii) For bridge

The detailed design calculation of prime mover, i. e. torque, duty, etc. shall be furnished for approval. k) l) m) Launder Velocity of flow in flocculator inlet pipe Range of velocity Gradient G Agitator assembly n) Velocity in launder 10 to 75 sec ­1 4 Nos. of Paddle agitator for each flocculator. Not more than 1 M/sec. Maximum. (Even when considered 20% overloading). Difference in clarifier F.S.L. and launder F.S.L. should be minimum 10 cms. Full diameter of flocculator and half diameter of clarifier. RCC outside the tank 0.8 M to 1.8 M per sec.

o) p) q) r) s)

Type of clarifier bridge

Full diameter of flocculator and 300 mm. dia. half diameter of clarifier. Sludge Removal Mechanized unit with continuous removal of sludge under pressure.

Bleeding pipe with telescopic valve arrangement shall be provided in a separate RCC Chamber. Access 1.2 M wide (minimum) peripheral walkway connected to other components Mechanical sludge scrapper conforming to IS.No.10313/192.

t)

Sludge Scraper

The unit of clariflocculator should be such located that it will be able to take the settled water from this clariflocculator to the inlet of raw water channel of filters of required MId capacity. The separating wall between clarifier and flocculator should be in RCC only. 'Brick wall will not be accepted.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme VI) a) Filters No. of units i) 5 to 8 MLD 2 bed each with 2 sections ii) More than 8 MLD to 15 MLD 3 beds each with 2 sections iii) More than 15 MLD 4 beds each with to 25 MLD Each bed to have central gullet. As per data sheet Rapid gravity 0.6 to 0.75 M. 0.45 M. 6,000 Liters/Sq.m./hour. 20 % of above rate

273

b) Design flow c) Type d) Depth of filter sand e) Minimum depth of gravel f) Rate of filtration g) Overloading to be guaranteed h) Area of filter house excluding filter beds which are open to sky and excluding control bay

Not less than 150 Sqm. with closed roof for administrative office with sanitation block. lap, blowers, wash water pump, MCC and entrance lobby. Not less than 0.50 M. 600 liters/Sqrn/minute. 10 Minutes 20cm.

i) Free board j) Rate of back wash of water Duration of back wash k) Minimum tree fall from outlet weir to pure water channel 1) Velocity in the pure water channel with overloading capacity m) Under drain system

1 to 1.5 M/sec. with 20 % overloading.

Conventional, A C. pipe of designed Dia. Class 15 with C.l. header tees. Maximum 1.2 M.

n) Lateral travel of wash water upto the edge of wash water gutter o) Water level above sand surface p) Uniformity coefficient of sand q) Effective size of sand r) Specific gravity s) Inlet sluice gate for each filter bed Contractor

Minimum 1.30 M 1.3 to 1.7 0.55 mm. to 0.65 mm. 2.5 to 2.65 As per design, but 100 mm dia. (Min.)

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme t) All outlet sluice valve dia for each filter bed u) Drain valve of each filter bed v) Minimum control valves for each filter bed when sectional wash is adopted

274 As per design, but 100 mm dia. (Min.)

As per design, but 100 mm dia. (Min.) Filter inlet Filtered water outlet wash water outlet Air inlet Wash water inlet1 No. per bed 1 No. per section 1 No. per bed 1 No. per section 1 No. per section

w) Loss of head x) Design of washing

Maximum 1.8 to 2.0 M. Piping of wash water lines, air lines and air blowers should be design for washing 1 section of bed at a time. The dia of valves should be same as that of respective pipe line. However sectional wash is not compulsory and contractor is free to choose washing of one filter bed with two sections at a time and in that case W. W. pipe line air line, air blower have to be design accordingly pipe respective.

VII)

Air blowers a) No. of units b) Rate of air supply c) Duration of supply d) Working pressure e) Dia. of piping f) Capacity 2 Nos. minimum 35 to 45 Cum/Sqrn/Hr. 5 minutes minimum. 0.35 Kg/cm2 Minimum 80 mm dia. C.I. pipes

Each units is having 2 beds & only one bed is to be washed at a time. Note: Design calculations for blower prime mover to be submitted by the Contractor but not less than 10 HP. VIII) Chemical house and Chemical store a) Structure R.C.C. framed with brick panels in two storeys. As per DS-8 detailed specification

b) i) Carpet area of Chemical house ii) Carpet area of chemical store c) Alum solution

As per DS-8 detailed specification As per DS-8 detailed specification

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme d) T.C.L. solution tank e) Lime Solution Tank f) Laboratory and Rest Room As per DS-8 detailed specification As per DS-8 detailed specification As per obligatory requirements under OR-II (VI-h)

275

Note :- Total area should be as per schedule 'B'. IX) Wash Water Tank a) Construction b) Capacity R.C.C. Capacity should be decided at 600 Lit/Sqrn/ Min + 10 Cum. vide detailed specifications under DS-7 Chemical House/filter house independent structure

c) Location X) Wash Water Pumps For Water Tank a) Type b) B.HP. c) Discharge d) Total head e) No of pumps f) Pipe works and valves

Electrically driven, Centrifugal As per design but minimum 3 BHP To fill the tank in one hour As per design 2 Nos. (one working and 1 stand by) To be designed at 2 M/sec velocity minimum size 100 mm. upto 8 MLD on pure water sump with priming arrangement. Above 8 MLD near pure water channel with positive suction 2 Nos. Pre-chlorination 3 PPM As per data sheet Vacuum feed type Booster pumps, suitable for working and standby

g) Location & priming

XI)

Chlorinators a) No. of units b) Dose c) Rated discharge d) Type e) Injector

XII)

TCL Dosing Installation (Emergency Disinfection) The arrangement shall include tanks, controlling valves, piping, etc. complete.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme a) No of units 3 Nos. to suit b) Total rated capacity c) Capacity of tank d) Drive for mixing XIII) XIV) XV) XVI) XVII) 3 PPM dosing As per data sheet To suit 3 PPM dosing By electric power

276

Bypassing Arrangements : As per Schedule 'B' and as per detailed specifications. Drainage Arrangements : As per Schedule 'B' and as per detailed specifications. Electric Installations : As per detailed specifications. Laboratory Equipment : As per detailed specifications Sanitary Blocks : As per detailed specifications a) b) Capacity Type Floor area Location Height 6 M (minimum) 1 hour R.C.C. Minimum 10 to 20 Sqm per pumpset By the side of pump/on sump

XVIII) Pure Water Sump

XIX)

Pure Water Pump House a) b) c)

XX)

Internal Roads : As per detailed specifications.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Name of Work:- Designing, Providing Constructing and Commissioning Conventional Water Treatment Plant of 7.00 MLD capacity. DETAILED ITEMWISE SPECIFICATIONS

277

General : These specifications as laid down hereinafter are in amplification of the requirements already specified in preceding pages of this tender and further fully complementary to it. The elaborate specifications for electrical works are given separately in addition to the following. Additional specifications for mechanical work and civil work are separately given. Sub Work No.1: Water Treatment PlantItem No.1: Aeration Fountain (Cascade Type) A) Design and Construction This shall be of cascade type and designed for ultimate stage flow Riser and trades of the cascades shall be of minimum 20 em. and 25 cm. respectively. The peripheral launder shall receive water under clear free fall condition. To achieve non splashing, sufficient height shall be provided to the launder above F.SL. The cascades shall be finished with broken pieces of glazed coloured tiles set in cement concrete, giving aesthetic appearance. Fountain lip opening shaH be provided with M.S. jali made up of required flats with maximum opening of 75 mm. The jali should be curved in shape of segment of sphere with central rise of 0.40M. The jali can be detachable. It should be painted with an epoxy anticorrosive paint. Smooth lip spillage shall be achieved. The vertical pipe leading to aeration fountain shall be of Cl/MS. The velocity in this pipe shall not be more than 0.6 m/ sec. A duck foot bends shall be provided at the bottom over block fountain and a bell mouth opening at the top. B) Accessories 1.2 M wide walkway and 25 mm. dia. double row GI pipe railing at the outer periphery as per the specification of mechanical engineering works shall be provided surrounding the fountain. It is necessary to provide RCC stair for aeration fountain. C) Mechanical Equipment The central inlet to the fountain shall be of Cl/MS of required thickness and dia. lined and outcoated with concrete with bellmouth at its top, increased to suitable diameter. From the duck foot bend, M.S. pipe line extending upto 15.00 M distance measured from centre of duck foot bend shall be provided by the Contractor with required specials as per site conditions. DS-2 Measuring Flume, Flow Measuring Equipment Etc. A) Design The flume shall be designed as an open channel type for required flow with free board of not less than 30 cm. The measuring flume shall have a baffle wall, and a side chamber for float. The item shall include construction of entire length of channel starting from the launder of aeration fountain to the receiving point at flash mixer. Reference I.S.S. 6059 and I.S.S.9117 of latest edition shall be followed. B) Accessories On one side walkway of 1.20 M width with 25 mm. dia. G.I. pipe railing in double row at the outer edge and as per specifications for mechanical engineering works shall be provided.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme C) Electrical and Mechanical Equipment

278

Simple flow meters with dial type indicator shall be provided and installed near the flume. The measuring device shall have a capacity of measuring minimum flow of 100 cum/hour and maximum flow of 500 cum/hour correct upto a rate of 20 cum/hour as per I.S.S. 6756, 6236 and 2032 of latest edition. In order to reduce head loss, the measuring device shall be on Parshal flume principle. It shall have, however, to be assured that the channel does not head up due to churning of water in the flash mixer. There should be clear over fall from channel to further unit. The channel and aeration fountain channel shall be provided with a drain pipe with valve for purpose of washing. At this time, channel shall be provided with penstock gate in M.S. to separate out from flash mixer. DS-3) Flash Mixer. A) Design and Construction A flash mixer of required capacity shall be constructed, in R.C.C. finished with cement plaster 1:3 mix at the water face. The unit shall be provided with RCC slab partly covering the tank for locating the driving unit of the agitator and for approach to the same. The maximum detention time for flash mixer shall be 60 seconds with side water depth of maximum 3.5 M. It should have arrangement to receive the measured and chlorinated raw water, dose aluminum sulfate solution immediately and violently dispensed the solution throughout the bulk of water in a flash mixing chamber. The hydraulic design should be such that the accuracy of the flume is not affected by the hydraulic behavior of the section. The design should provide flash mixing chamber with submerged mixers, shaft driven from overhead motors and gear box each designed to impart turbulent energy into water at an anticipated rating of 2.5 KW (minimum). Aluminum sulfate shall be dosed immediately adjacent to the flash mixing device. B) Accessories The walkways of 1.20 M width shall be provided with 25 mm. dia G.I. pipe railing in the double row as specified in general mechanical engineering works specification attached. C) Electrical and Mechanical Equipment This will consists of the following: i) ii) iii) iv) v) vi) vii) Frame agitators with stainless steel blades and stainless steel vertical shaft mounted on bearing of sufficient strength to prevent vibrations. Electrical motor of suitable horse power, starter and reduction gear (Not less than 3 HP.) Suitable size outlets with proper controlling arrangements of flow. Water tight penstock on the inlet. Protective covers of M.S. sheets duly painted for motor. C.I. pipe lines between flash mixer and clariflocculators shall be provided with control valves and suitable chambers. Flash mixer draining arrangements shall be provided with a suitable sluice valve and chamber. .

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme DS-4 Clariflocculator A) Design

279

The item includes construction of R. C. C. radial flow clariflocculator with central flocculation chamber of 30 minutes detention period and outer annular clarifier of 2.5 hours (minimum) detention period overflow rate not exceeding 30 M3/M2/day and with 20% overloading additional volume upto the side water depth excluding sufficient capacity for sludge storage shall be provided, however, capacity below S.W.D. shall not be considered. Peripheral launder to clariflocculator shall be provided to take clarified water to the launder. Suitable number of right angled V-notches be provided on launder wall. The shape, depth and size of inlet and outlet of clariflocculator shall be so designed that the gentle overturning motion given to the water in the flocculating zone shall bring about complete agglomeration of floc to the maximum possible extent so as to achieve quick settlement in the clarifier zone with a view to lower the turbidity below 20 PPM and preferably 10 JTU when there is maximum raw water turbidity. In short (a) Turbidity not more than 20 J. T. U. (b) Suspended solids not more than 20 mg/I (c) Total AI not more than 0.30 mg/I for water leaving the clariflocculator shall be achieved, wherever pre-chlorination unit is provided a residual chlorine of 0.2 mg/l for water leaving the clariflocculator shall be maintained. B) Construction The outer clariflocculator wall shall be in R.C.C. of thickness not less than 18 em. The bottom slab shall be in R. C. C. of minimum thickness of 15 em. It shall have a slope of 1 in 12 from outer periphery towards the centre. The flocculator wall shall be 12 cm. thick in R.C.C. with cement plaster on both the sides as it is not retaining any water. The central inlet to the flocculator chamber shall be R.C.C /M. S. outcoated and inside lined, shaft of adequate diameter with suitable slot opening at the top. This includes providing, laying, lowering and jointing C.I. pipes of suitable diameter from flash mixer outlet to central inlet shaft of the flocculation chamber. The portion of C.I. pipe below the floor of the clariflocculator will be encased in C.c. M. : 200 with adequate cover of 20 em. from all sides. The flocculator wall shall rest on R. C. C. ring beam and column of suitable section and height so that water from flocculator will pass on to clarifier radially below the flocculator wall. The sludge pipe from the central sludge pocket upto chamber of nearest drainage system shall be of C.I. pipe of appropriate class, Sand S type. The pipes will be encased in C.C.M. 200 upto cover 20 em. on all sides for length below the floor of the clariflocculator. The diameter shall be not less than 300 mm. It should be possible to remove the entire sludge accumulated at the centre of the pit of the clariflocculator by gravity alone to the last drop when it is to be emptied for repairs or so. It also includes sluice valve of equal dia. to that of pipe line with extended spindle and wheel. A telescopic bleed device shall be provided separately and drained in the sludge chamber. There shall be R. C. C. circular launder outside the edge of vertical wall and extending over to the whole periphery around the weir. The launder should be fixed with 6mm M.S. plate weir having right angle V-notches. The launder shall be connected at suitable points to inlet chamber or pipe of the filter unit. The launder shall be designed to take full flow in clariflocculator and size should be such that minimum clear free fall 10cm in the launder shall be maintained. From launder of clarifier, clarified water channel of required mId capacity wi1llead to filter inlet. C) Accessories The clarifier will have 1.2 M wide peripheral walkway all round with G.I. pipe railing 25 mm. dia in two rows at the inner outer circumference as per general specifications for mechanical engineering works. Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme D) Mechanical and Electrical Equipments

280

This includes providing and erecting standard mechanical equipment with required electrical wiring, switches, etc. complete. In flocculation chamber, flocculator paddles made of M.S. section of suitable size and M.S. flats fixed to central stainless steel shaft of suitable dia (not less than 50 mm and as per I.S. 7208/1974) should be provided. The flocculator blade shall be of M.S. plate. The stainless steel central shaft shall be provided with guide bearings to the bottom suitable for underwater use. Even in the case of Dor Oliver type flocculator mechanism offered by the tenderer, the paddles shall be of M. S. and guide shaft, if used, shall be in stainless steel. The paddles area of flocculator shall be 10 to 25% of tank sectional area in the plane of shaft and the paddle tip velocity should be 0.3 0 to 0.4 M/sec. the distance between the paddle tips should be of maximum one meter. The flocculator driving mechanism shall comprise of 400/440 volts, 3 phase A.C. motor of suitable Mechanism Section H.P. (minimum 2 H.P.) with approved make starter connected by worm reduction gear of suitable ratio through pinion and bevel wheel drive. Bevel shaft shall be connected to flocculator shaft through rigid couplings. The warm reduction gears shall be suitable for 24 hrs. continuous operation. The design calculations justifying the selection of gears, material of constructions, lubrications, torque requirements verses torque suitability of gear box, etc. shall be submitted for approval. The equipment for clarifier shall consist of a lattice girder bridge. The bridge will be of entire diametric length of flocculator and half the clarifier and with trolley rails resting on the clarifier wall and the central bearing or central shaft. It should not be supported by flocculator wal1. The bridge path shall consist of a 1.0 meter wide walkway made of welded and bolted R.S. sections of suitable size and fitted with 6 mm thick chequered plates. Two nos. scraper arms with scraper blades of suitable size covering the entire diameter of the clarifier being suspended from the top of bridge should be provided. The driving mechanism for the bridge shall consist of 400/440 volts. A.C. motor of suitable H.P. (not less than 3 H.P.) with starter of approved make jointed through coupling to worm. reduction gear transmitted by chain drive imparting slow motion to the driving mild steel wheel, moving on rails. The bearings shall be housed in high grade c.I. housing with G.M. bush for rigidity. Special current collector for transmission of electric power from outside to the different units of bridge shall be provided. The clarifier bridge mechanical equipment should be given two coats of anticorrosive epoxy paint. The panel shall be suitable for outdoor installation and switch fuse units of approved make shall only be assembled. The drawing should be got approved prior to fabrication and brought to the site only after inspection by the Engineer-in-Charge. Minimum performance Turbidity not greater than 10 J.T.U S.S. not greater than 10 mg/lit. Total AI not greater than 0.5 mg/lit. DS-5 Filter House & Rapid Gravity Constant Rate Sand Filters a) Design The filter beds shall be open to sky with control bay in a filter house with roof. The location of filter house shall not be on pure water sump. There shall be minimum 2 Nos. of filter beds which can be operated independently. The ratio of length and breadth of each filter bed (there are two beds in each unit) shall not more than 1.66. Together, they will deal with a required flow capable of filtering at the rate of 6,000 litres/M2/hour. The system should be designed such that it should be possible to overload the filters by 20% without affecting the quality of filtered water. It is Contractor No. of Corrections Chief Officer

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proposed to backwash the filter with air wash at the rate of 35 to 45 m3/m2/hr. of filter bed area at 0.35 kg/cm2 pressure at the under drains and followed by wash water at the rate of 600 liters/Sq.m./m mute of the filter bed area for a duration of 10 minutes. It shall be ensured that the lip level of wash water trough is kept minimum 60 cm. above the surface of sand to accommodate expansion of sand bed. i) 1.20 M wide walkway all round the filter beds with double row of GI pipe railing of 25 mm. dia as specified in the general specifications for mechanical engineering works. Space for housing air blowers and panel board in a separate filter annex room with adequate working space. . An office room. Pressure reducing arrangement to reduce pressure of water supplied from wash water tank for back washing the filter beds if necessary. Each unit shall be complete in all respects with inlet valves, wash water inlet valve, wash water outlet valves, etc. Velocities permissible in different conduits and vales of filter house shall be as below: a) b) c) d) e) At inlet to filter At inlet to wash water At outlet of wash water Air inlet 1.00 M/sec. 2.40 to 3.00 M/sec. 2.00 M/sec. 1.00 M/sec. 25 M/sec.

ii) iii) iv) v)

At outlet of filtered water -

Filter inlet and outlet channels shall be designed for 20% hydraulic overloading with free board of minimum 50 cm. b) Filter Media This shall consist of properly washed quartz sand of effective size between 0.45 mm. to 0.70 mm with a uniformity coefficient between 1.3 to 1.7. The gravel media shall be as per standard specifications of rapid gravity filters. The filter bed shall consist of 0.60 M to 0.70 M of sand supported on 0.45 M gravel. The filter sand shall be granular, hard, durable, well-washed and screened. It shall be free from clay, dust, shale, loam, organic impurities, vegetation and other impurities and shall not contain more than 10% micaceous matter. The sand crushed and powdered and immersed in concentrated hydrochloric acid shall not loose more than 1.5 % of weight calculated as CaCO3 and not more 2% weight shall be lost in case of sand crushed/powdered after burning. The frailty weight cost after milling for 5 minutes (750 strokes) shall be less than 10% and for 30 minutes. (1500 strokes) shall be less than 20%. The gravel shall be hard, durable and shall not disintegrate under the action of water. The smallest and largest size shall be 3 mm and 50 mm respectively. The Contractor shall specify the size and thickness of each layer of filter media (gravels and sand). C) Construction The filter house and filter annex buildings shall be of R.C.C. framed structure. Filter house will comprise of closed control bay and filter beds. Ground floor filter annex shall be double storeyed comprising of inter-annex hall with porch at main control door, air blower room, panel board installation, general administrative block, 1.5 M wide staircase from annex room to operating floor of filter house shall be provided. . Two Nos. R.C.C. stair cases 1.2 M wide shall be provided for going from filter operating platform to inspection gallery. These stair cases shall be provided with G.I. Contractor No. of Corrections Chief Officer

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pipe hand railing as per specifications mentioned for mechanical engineering work. The steps of staircase shall be provided with C. C. chequered tiles. Dimensions of the brick walls, external and internal, should be appropriate for the function of wall to serve and shall not be less than 23 cm. For brick masonry there shall be sponge finished cement plaster in C.M. 1:3 mix from outside and inside face of the wall shall be plastered in C.M. 1:3 mix and smooth finished with neeru. The thickness of plaster shall be 12 mm. for brick masonry. The inside face of inspection chamber and filtered water outlet channel connecting portion shall be provided with 6 mm. thick first class quality white glazed tiles, with white glazed corner, etc. set in white cement. The chamber shall be provided with suitable bulk head fittings for illumination. Inspection chambers shall be provided with M. S. angles framed both side M. S. mesh protected transparent cover. The inspection box and filtered water outlet channel shall be in R.C.C.. The cover of channel shall be in RCC slab finished with marble mosaic tiles, of approved colour, shade and size. There should be four openings of 90 x 60 cm. for getting into the channel and these will be fitted with 90 x 60 cm. heavy duty C.I. manhole frame and cover, the width of the passage (walkway) around and in between the two adjacent filter beds shall be 1.20 M minimum. Walkway around and filter units shall be provided with 25 mm dia. double row G.I. pipe and railing as specified in the general specifications for mechanical engineering works. Railing shall also be provided along the pipe gallery. The clear height shall 4 M minimum above filter operating platform level to roof slab bottom. The roof and the ceiling, etc. shall be finished as specified in the general specifications for civil engineering works. The minimum difference in the operating floor and the walkway level on top of P.W. channel shall be 2.7 M. & to be decided as per hydraulics. The position of inspection box, R. C. C. staircase, location of air blowers etc. should be so chosen as to offer very neat and tidy appearance to the filter house. The ground floor of the filter annex should accommodate air blowers, entrance hall with entrance counter, ten chairs etc. A decorative partly glazed and partly paneled large size door should be provided. D) Mechanical Equipments i) Piping Under this arrangement inlet piping, with regulating arrangement of approved type, outlet pipe with central valves, filter, back wash piping waste water discharging piping with valves and air pipe from the blowers upto the under-drainage system with suitable control valves and air releases with necessary piping, extended spindle penstock and operating C.I. hand wheel, etc. as required shall be provided. All valves should be capable of being operated from operating floor. . All pipes shall e of C.I. 'LA' Class pipe with flanged joints. This also includes the required number of specials to negotiate bends and inter connections, etc. The complete piping for back wash of water shall be provided suitable to wash two filter bed at a time. ii) Under drainage system This shall be provided with AC pressure pipe class 15 with plain ended CI. tees to be laid over R.CC. flooring. The under drainage system shall be designed for the washing rate which shall not exceed 600 liters/M2/minutes. The under drainage system shall consists of manifolds and laterals as per design of the Contractor to satisfy the obligatory requirement.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

283

The ratio of the area of the manifold to the total area of laterals drawing into the manifold shall be 1.5 to 2. Wash water gutter (laterals and main) shall be properly designed so that while functioning, it facilitates complete bed washing. There is no loss of filter material. Wash water travel shall not exceed 1.20 M transversely. Height of lip of the gutter shall be designed taking into consideration the bed expansion during back wash Duration of wash should not exceed 10 minutes in any case. The quantity of back wash water used shall not exceed on an average 2% of total quantity of filtered water as counted on the average of year's working. The piping shall be sufficiently fixed to R.C.C. floor to prevent its getting detached from the floor. The under drain system shall be capable of taking an overload of 20%. The under drain system should be capable of taking an overload of 20% as. stipulated above. So also the filter outlet control system should also be capable of taking an occasional overload of 20% of the rated capacity hydraulically. iii) Over loading of working units during washing operation For the treatment plants above 8 MLD 3 units are to be provided. When one unit is under washing the total flow will pass through remaining 2 units i.e. they will be subjected to 50 % over loading. Only inlet and out let arrangement need to be designed for this without causing overflow. For the treatment plants of 15 MLD to 25 MLD -4 units each with 2 beds are expected. When one unit is under washing the total flow is to be catered by remaining 3 beds i.e. they will be subjected to over-loading of 33 %. Only inlet and out let arrangement need to be designed for this without causing overflow. iii) v) Complete system of waste water draw off for collecting and disposing off waste water during cleaning of filter beds shall be provided as per above requirements. Flow Control System for Constant Rate Filtration, with Influent Flow System The filter shall work on constant rate filtration by influent flow splitting. In the case of influent flow splitting, the entire flow of influent (clarified water conveyed to filters) shall be split equally at the inlet of each filter unit of 2 beds by means of simple weirs. The rectangular weirs with equal dimensions are located at the same elevation in the concrete weir boxes. The location of weir should be such that it should be possible to measure head on the weir and regulate the discharge by providing isolation gate for every weir. The spindle of this gate should not reduce the walk way width. The influent channel shall be connected to the inlet of weir boxes by means of isolating gates Filter boxes should have to be designed in such a way that the depth of standing water on the bed should be about 3.5 to 4m supported by due design. The influent channel should be designed for the velocity of 0.6 m/sec. The sizing of the box and that of inlet port should be large enough so that they do not cause any turbulence over the weir. The design and arrangement of constant rate filtration process shall be as directed by the Engineer-in-charge and as specified in para 7.6.8.1 of CPHEEO manual. v) General Layout and Carpet Area Full details should be indicated in general layout plan. DS-6 Bypass Arrangement A) Design and Construction Bypass arrangement shall be provided as per details mentioned in Schedule 'B' The arrangement shall be designed for a required flow plus 20% overload. It shall also include construction of R.C.C. chambers of suitable size wherever necessary.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme It should be possible to bypass i) ii) iii) iv) Flash mixer and clariflocculator Filters totally and/or partially Flash mixer and clariflocculator and filters

284

Clariflocculator shall be designed to take water to the chlorination point of pure water channel in the filter house proper.

The period of bypass will be minimum possible required of various units and repairs, whether panel or otherwise. During this period the hydraulic capability of various units will be utilized to the maximum but in any case no unit shall be over flooded nor the quality of pure water be deteriorated beyond acceptable limits. The Contractor shall give trials of such hydraulic bypass and limits of end quality achieved. i) Piping Pipes and specials shall' be of C.I. 'LA' class. ii) C.I.D.F. sluice valves, sluice gates, penstocks, etc. at suitable points shall be provided with operating guide-rod and wheel, etc. The C.I. sluice gates, penstocks, etc. should be reputed make and must have ISI certification mark and should conform to the relevant latest ISI Sluice valve shall be us exclusively when the difference of water pressure on both sides exceed 1.00 M.

DS-7) Wash Water Tank A) Design and Construction The tank shall be of R. C. C. with required capacity. The capacity of wash water tank should be sufficient for cleaning one filter bed with two sections even though only one section is to be washed at a time at the rate of 600 lit./m2/minute for 10 minutes duration and shall be provided at a suitable location. Incase total beds are more than 4, then capacity should be sufficient for washing 2 beds instead of 1 bed. The tank shall be at such an elevation as would give an effective net head of 8 to 10M at the under drain of the filter beds. In addition to above 10 cum extra capacity be provided for other utility. B) Allied Items i) ii) iii) iv) v) Water level indicator One water level indicator shall be installed in the filter house. R.C.C. spiral staircases for access to the top of the tank and M.S. ladder inside the tank. 2 Nos. of C.I. heavy duty manhole covers with frames of size 0.9 M x 0.6 M with locking arrangements. Lightening Conductor One no. As per relevant I.S. specifications. Piping and Valves C.I. pipeline with specials, valves, etc. shall be provided from wash water tank filling pump in pump house to wash water tank and wash water tank to filter for back wash and the required sizes of GI pipes for chemical tank and sanitary block shall be provided from wash water tank.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme DS-8) Chemical House & Store Chemical Feeding Equipment A) Design

285

The building shall be constructed in two floors as indicated. It shall be a R.C.C. framed structure in columns and beams with brick paneling of minimum 23 cm. thickness. It should not be located on pure water sump. B) Area and Location The chemical house shall be so located that the chemicals could be conveniently and easily fed and controlled between the aeration fountain and flash mixer and fed by gravity. The minimum carpet area for chemical house (in two stories) and chemical store in single or two story building shall be as below: Plant capacity i) ii) iii) iv) v) upto 15 mId 16 to 30 mId 31 to 45 mId 46 to 60 mId 6] mId & above Chemical House Total min. area 75 sqm 75 sqm 150 sqm 250 sqm 350 sqm + + + + + Not separately required 4 Sqrn/mld 4 Sqm/mld 4 Sqm/mld 4 Sqrn/mld Chemical store

Above area is the total area which can be split in two floors. Above areas exclude 150 Sqm area of filter house as shown at OR-11 (VI-h) Ceiling/roof height 4 m on ground floor. 4.5 m on first floor The entire construction shall be a RCC structure in columns & beams as specified with panel of 23 cm thick brick walls. C) Construction a) Ground floor The ground floor shall accommodate alum store for 90 days, lime for 30 days and TCL powder for 7 day's requirement and other miscellaneous store, platform type alum weighing machine of 1.00 M. T. capacity, the average height of the plinth of chemical house shall be 0.6 M. b) First Floor The first floor shall accommodate minimum 3 R.C.C. alum solution tanks. Similarly it shall also accommodate laboratory, test room and T.C.L. solution tank for prechlorination and post-chlorination and lime tank. The chemical tanks shall be designed & provided as below: i) Alum Tank Minimum three tanks (one for preparation, second for dosing and third as stand bye) each tank capable of giving 8 hours maximum dose without interruption, minimum free board 0.30 M, trays for dissolving, level indicator. mechanical agitation devices, solution feed & drain lines, solution feed device. The strength of solution shall be upto 10% only conforming to IS 9222 part 11979.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ii) Lime Solution Tank.

286

Minimum three nos. of lime solution tank each of 8 hours capacity to dose upto 25 PPM at 10% solution strength to deal with the design flow iii) TCL Tank for post Chlorination Minimum 3 Nos. each of capacity not less than 3 Hours (1 Kg of TCL in 40 Lit of water) for a dose of3 PPM of chlorine to deal with the design flow. iv) D) TCL Tanks for Pre-Chlorination These shall be as per post chlorination requirement. Mechanical and Other Equipment A dissolving tray of RC.C. trough with holes or slots shall be provided on each tank for placing the alum cakes. The alum solution tank shall be fed with pure water by means of G.!. piping and valves of adequate size from wash water tank. Each solution tank shall be provided with brass gauge plate level indicator. The top of the solution tank shall be covered with 50 mm. thick wooden planks properly fixed with rounded edge and painted in three coats of oil paint The alum mixing paddles shall be of stainless steel of enough section and size. Individual drive arrangement shall be provided. Necessary wash out arrangements shall be provided. An RC.C. operating platform at suitable level and of 1.20 M width and length covering all the tanks shall be provided. All the tanks shall have independent outlets, feeding the dosing tank. In addition, there shall also be adequate capacity lime solution and TCL solution tank with allied equipment to work in emergency situation. For lime solution tank mixing paddle shall be of mild steel with individual driving arrangement Constant head device with manual does adjustment arrangement shall be provided for all chemical solution tank i.e. with out arrangement of automatic does arrangement 100% stand bye shall be given i.e. one more constant head device at every tank be provided in spare. All Valves, pipes and fittings for dosing and washout shall be non-corrodible materials and should be of adequate size. Mono rail operated chain pulley block of 1.00 MT capacity with geared trolley shall be provided for handling the chemical in storage area. This can be manually operated. In addition to the above one MT capacity simple chain pulley block fixed to a hook in the top slab of first floor shall be provided to lift the chemicals to top floor from chemical store. The chain pulley block should be of Morris/Elephanta make. An opening of suitable size in first floor for lifting alum bags from ground floor to first floor shall be provided. The opening of the floor shall be provided with 25 mm. dia G.I. pipes railing in double row and 0.85 M high. The operating platform of solution tank shall be provided with G.I. pipe railing. The tank shall be provided with 1.20 M. wide access staircase with 15 cm. wide M.S. plate-stringers of 10 mm thickness and 20 mm dia rise. The hand railing shall be 0.85 M high with G.!. posts and two rows of25 mm dia (internal) G.I. pipe (medium duty) on both sides. Precaution shall be taken to ensure continuity of feeding, alum solution by gravity and prevention of gas hazards, corrosion and dust nuisance. Accuracy of the dosing equipment shall be an essential requirement. The solution tanks shall be given two coats of chloro rubber paint. The chemical house, platform, staircase, shall have flooring of corrosion proof tiles.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme DS-9 Wash Water Pumpsets A) Design

287

Two Nos. of wash water pump sets as described under the statement of obligatory requirement shall be provided. One will work and another pump sets as standby. Hence, total 2 nos. of pumps shall be provided with 100% standby for wash water pumping. Location of pumps Upto 8 MLD 2 beds each with 2 sections are expected. In this case wash water pumps should be located on pure water sump as the filters are expected to be washed in non operational hours. After washing of one bed the wash water tank will become empty and the same is to be filled from pure water sump so that 2nd bed can be washed. Capacity of pumps shall be calculated to fill the wash water tank in one hour. The pumps should have priming arrangement with vacuum pumps. Alternatively contractor provide wash water tank of capacity sufficient to wash 2 beds (4 sections). In this case pumps can be located near Pure Water Channel with positive suction and pumps capacity equal to filling the tanks in 2 hours. For treatment plant above 8 MLD The wash water pumps can be located near pure water channel as washing is expected to be possible in the operational hours itself by over loading operating units. The capacity of wash water pumps shall be calculated to fill the wash water tank in one hour. The pump should have positive suction and shall draw water from 50 Cum. wet sump near Pure Water channel. When total beds are more than 4, wash water tank capacity shall be sufficient to wash two beds but the capacity of wash water pumps shall be sufficient to fill the wash water tank in two hours. B) Allied Items Piping and valves The piping shall be provided consisting of suction and. delivery upto wash water tank inlet. It shall be of C.I. 'LA' class of suitable dia. All piping shall be double flanged pipes and specials. Each pump set shall be provided with strainer C.I. foot valve and 1 No. of C.I.D.F. sluice valve, one reflux valve, etc. on delivery side. The test of the pumping machinery shall be given for a period of 100 hours non-stop. Performance of machinery will also be observed in the entire performance period. . A panel board of suitable capacity shall be provided with all fixtures thereon, suitable for these pumping sets. DS-10 Chlorine Room & Chlorinators A) Design Two numbers of vacuum type chlorinators having capacity to treat required flow at a dose of 3 ppm should be provided, one for pre-chlorinaton at a dose of 3 ppm and one for post chlorination at dose of 3 ppm. The required size of chlorine storage and chlorine room shall be provided. B) Construction Disinfection will be achieved through chorine gas for this purpose. Not less than two numbers of vacuum type chlorinators of reputed make like penwalt, Metito with due approval from the Chief Engineer, MC with all accessories shall be provided and

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

288

erected as per makers specifications. Dosing capacity of each shall be up to 3 kg/hour for 10 to 15 MLD plant 2.0 kg/hour for 5 to 10 mId plant Chlorinators shall be housed in chlorine room. The chlorine cylinder room shall be located and designed for facility of removing and bringing in large chlorine cylinders. There should be provision of weighing machine of adequate capacity to weight and keep the cylinder or top of cradles during use. The chlorination room shall be provided with additional ventilators at floor level also. Exhaust fans, at least 6 numbers, should also be provided at floor level of chlorination room. Chlorine cylinder store room should be designed to accommodate at least 3 numbers of toners at a time, all on cradles. The arrangement of storing shall be conforming to provisions of bylaws prepared for gas storage by the Central Government 1981. The piping conveying gas to chlorination room shall be concealed below detachable false flooring. For movement of cylinders from truck to cradles and in between cradles shall be done with 2.5 MT capacity gantry. The offer of the contractor shall include cost of tested full chlorine cylinder - 2 numbers minimum (Toners of 900 Kg.) to be installed before commissioning. C) Piping This shall be provided from the chlorinators upto the point of application and shall be of P.V.C. with suitable specials, Piping shall also be provided for supply of pure water to the chlorinator from a suitable tapping point. The safety equipment for chlorine gas cylinder handling such as gas mask with artificial inhaling arrangement of a reputed Company in 3 sets to be provided. Chlorine leak detention and control equipment shall also be provided in 3 sets. Water tank of required size shall be provided for supply. DS-11 Emergency Disinfection Arrangement A) Design This arrangement is proposed for disinfection of water by TCL. The capacity of each TCL solution tank shall not be less than 3 hours (1 kg TCL in 40 liters of water). There will be 3 number of tanks . B) Construction The emergency disinfection TCL tank shall be located suitably in the chlorination room. The chlorination room should have a separate entrance. Tank walls shall be lined from inside with bitumen rubber paint or any other suitable anticorrosive materials. Additional ventilators shall be provided at floor level. C) Accessories Approach ladder and walking platform 1.20 m. wide with G.!. pipe railing as specified in the general specifications for mechanical engineering works shall be provided if the tank top is more than 1 M above the floor level. D) Piping This includes alkathene piping encased in A.C. pipes for solution outlet and drawn up to the point of discharge and G.!. piping with valves for feeding pure water to tanks, right from tapping point. E) Mechanical Equipments The tanks shall be provided with electrically operated suitable stainless steel shaft fixed with stainless steel mixing paddles with suitable metal cover. A dosing arrangement consisting of constant head dosing box with stainless steel ball arrangement consisting of constant head dosing box with stainless steel ball valve Contractor No. of Corrections Chief Officer

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and polythene float and stainless orifice with stainless steel tappet shall be provided to administer appropriate dose of chlorine at each place. A solution level indicator shall be provided to each tank. DS-12 Electrification The main distribution panel board should be connected to panels for flash mixer, clariflocculator, clarifier, chemical agitators, lighting purpose, etc. This item includes all power control wiring, external, internal electrification, illuminates, fixtures, switch fuse unit, circuit breakers, etc. The units shall be as per site requirement and test and trial shall be given upto the satisfaction of Engineer-in-Charge. DS-13 Laboratory Equipment The laboratory shall be suitably accommodated on the ground floor of chemical house. The contractor shall provide the laboratory equipment to the latest and uptodate design and shall consist of i. Jar test Apparatus to decide optimum alum dose including chemical/ electrically operated stirrer. ii. One turbidity rod for measuring the turbidity of raw water. iii. A latest type optical turbidity meter for measuring the clarity turbidity of iv. filtered and settled water. v. A turbidity meter specially to measure turbidity of pure water with digital display along with two Nos of spare kits. vi. One electrically operated P.H. meter (Aquascope) with full range of comparator discs vii. with necessary reagents. viii. Two chloroscopes for measurement of residual chlorine with necessary reagents. ix. One wash basin of large size for laboratory use with inlet pipe connections from main and washout pipe arrangement upto manhole. x. Plastic buckets of 8 liters capacity - 2 Nos. xi. One analytical chemical balance with glass case, one of weighing capacity upto 200 gms. and sensitivity upto 0.1 milligram along with a weight box. One mechanical balance of 1 kg. capacity with dial display shall be provided with sensitivity 1 gram. xii. Stainless steel tongs of200 mm size - 2 Nos. a) b) c) d) e) f) g) h) i) i) Crucible silica with lid Test tubes 15 cm. and 20 cm. Size Volumetric pipettes range varying from 1 cc. to 100 cc. Measuring flask range varying Beakers Weighing bottles Wash bottles 1000 cc. Burette 25 cc. Reagent bottles of different capacity Chemical flask 250 cc. 2 Nos. 2 Nos. 12 Nos. 6 Nos. 4 Nos. 4 Nos. 2 Nos. 6 Nos. 4 Nos. 4 Nos.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme k) I) m) n) 0) x) xi) Porcelain crucible 25 cc. Measuring cylinders 100 cc. to 500 cc. Distillation flask 1000 cc. Pipette stand for 12 pipettes Test tube stand 4 Nos. 4 Nos. 1 No. 3 Nos. 2 Nos.

290

One electrically operated 'Beaker' laboratory flocculator for stirring solution. One water-works model of minimum plan size as per actual execution, in a glass case mounted on a T .W. table to be located in the office room of filter house. Sampling Table: This shall be provided for collecting samples of raw water, settled water, filtered water and chlorinated water with necessary pumps if required, clarity bowls, glazed sink, piping and teak wood french-polish table size not less than 1 M x 2 M with glass cover and aluminum top for supporting the same, on which the bowls are mounted. All fittings for the table shall be chromiumplated. Individual supply lines of the sampling table shall be marked, (preferably on the push rod of the cocks) with distinctive letters such as raw, settled, filtered, etc. The whole assembly shall form a pleasing central features. Each arrangement in the background for clear vision. The equipment shall also include drain connecting the manhole outside the filter house.

xii)

xiii)

Two sets of instruction manual for operation of flash mixer, clariflocculator, filters, venturi flume and the flow recording equipment and the chlorinator shall be provided at no extra cost. The Contractor shall identify and provide all necessary reagents and chemicals so as to enable the chemist and his assistants can satisfactorily test the samples and analyze them for a period of 3 months. The Contractor shall provide 1 no. of Godrej medium size almiras and Godrej book case and 1 no. of large size Godrej table 6 nos. of chairs along with 3 nos. of cushioned stools. A quartz type battery operated 30 em dia. wall clocks.

xiv)

xv)

xvi)

DS-14 Internal Roads The item shall include designing the works to an attractive layout, leveling of the works site and construction of internal WBM roads of3.5 M. total width with asphalt topping 40 mm. thick of 3 M. width approachable to each unit of the plant with side gutters which shall be as per standard practice. DS-15 Pure Water Sump a) Design and Construction Capacity of sump shall be minimum I hours storage. The construction shall be in R.C.C. Necessary compartments shall be provided to avoid short circuiting. b) Allied Requirements i) The water level indicators one no. mechanical and one no. of electronic digital display shall be provided to each compartment. Mechanical and one No. electronic shall be fitted in wash water pump house and one No. of display in the office. No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme ii) iii) iv) v) vi) Suitable decorative R.C.C. ventilators shall be provided.

291

Four No. 1.2Mx 0.9 M.C.I. heavy duty manhole frame and cover with suitable locking arrangements shall be provided and fixed. Sufficient No. of access ladders/steps shall be provided. Overflow from pure water sump is necessary upto 15 M length from sump: In addition to sump, 30 minutes capacity chlorine contact tank (CCT) shall be provided for plant capacity more than 30 MLD should have partitions (Baffles) as per requirement to ensure proper chlorine contact.

DS-16 Pure Water Pump House Pure water pump house shall be located on pure water sump or by the side of sump and shall have adequate area to accommodate pumps. Height of pump house shall be 6 M. minimum. Ventilation shall be minimum 20%. The construction should be in R. C. C. frame structure and brick panels of minimum thickness of 23 cm. Top slab thickness should be 12 cm. minimum. Doors shall be in CCTW and steel windows fully glazed shall be provided. Floor shall be provided of 50 mm thick shahabad stone with M -100 bedding. The arrangement of cable tray/trench, location of panel board, etc. shall be got approved from M.C. The pump house columns shall be designed with corbels for 3 tons gantry. The scope does not include the providing of gantry. The required size of common suction pit of 1.00 m depths shall be provided in the sump. For design of pump house floor, the impact factor should considered as under. Bowl assembly / Pump - 3, Motors - 2 & discharge head base frame, sole plate, column assembly (including weight of water in it) - 1. DS-17 Conveyance Of Waste Water & Sludge Drain Arrangement a) Design The arrangement is to be provided for collecting and carrying the water and sludge from the aeration fountain, venturi flume, flash mixer, clariflocculator, filter house, chemical house, overflow of wash water sump and pure water sump, etc. through a system of pipes and manholes upto point of discharge i.e. point as shown in the drawing of last manhole near to the boundary of plot. The pipe shall run 2/3rd full. The velocity at 1/3rd flow shall not be less than (1 M/sec.) The conveyance system to drain effluent of septic tank shall be provided separately upto soak pit. (The size of drainage pipe shall be decided as per design requirement) b) Construction The pipe lines shall be of R.C.C., NP2 class jointed with cement mortar 1:2, the minimum cover over the sewers shall be 0.8 M. The pipe below 200 mm dia. shall not be used in the system. The system shall include all valves, specials, etc. as per requirements at site and .as directed by the Engineer-in-Charge. Manhole These manhole shall be in B.B. masonry and shall be in rectangular shape of 0.9 x 0.45 M opening. The diameters of manhole shall be as stated below: 1) 2) 3) 4) Depth upto 1.0 M Depth from 1.0 to 2.0 M Depth from 2.0 to 3.0 M Depth more than 3.0 M 1.0 M dia. 1.2 M dia. 2.0 M dia. 2.5 M dia.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

292

The B.B. masonry shall be 23 cm. thick for manholes upto 1.0 depth, 35 cm thick for manholes between 1 M to 2 M depth and 45 cm thick for manholes more than 2 M depth. The bottom of each manhole shall e of 30 cm. M 100 (1:3:6) cement concrete with a benching of M-50 (C.C. 1 :2:4). The bottom and inside and outside surfaces of the chambers shall be finished smooth with cement plaster in C.M. 1:3. Manhole shall be provided with heavy duty C.I. manhole frame and cover (500 mm. dia as per 1.S.S. 1726-1967) C.I. steps shall be provided for manholes more than 1.0 M deep. DS-18 Sanitary Block a) Design and Construction There should be one unit and accommodated suitably in filter house & chemical house It shall be completely closed structure, constructed in brick masonry with R.C.c. roof slab. The area of the block shall be as per standard requirements of 1.S.S. and Factory Act provisions. This block shall consist of :i) ii) iii) iv) 600mm size water closets (Indian type) Urinals separated by Kadappa partition, 525 mm. size coloured Wash hand basin with mirror Bathroom with showers, towel rod, 3 Sqm. mirror, shelf etc. 1 No. 2 No. 1 No. 1 No.

All the provisions in the sanitary block shall be of high quality and make and shall be got approved from the Engineer-in-charge. The area of the sanitary block shall be 15 Sq .M. The floor of the entire block shall be provided with approved glazed tiles. Dado in glazed tiles shall be provided for all units, for a height of 2.00 M. Adequate ventilation with exhaust fans shall be provided. b) Allied Items i) ii) iii) iv) Water feeding connection - G.I. pipe lines of required size and lengths with specials, valves, etc. shall be provided for all the units. Flushing tank - Flushing tank of 14 liters capacity shall be provided for each water closet and urinal respectively. Sewage effluent connection - All units shall be provided with suitable size and length of outlet connections to septic tank. There should be one unit of instant geyser in bathroom.

DS-19 Trial Run This period of trail run shall start from the satisfactory testing and commissioning by the Contractor during time limit of the contract as mentioned in programme under GC. After satisfactory completion, the plant is to be run for a period of three months under this item. During this period bulk water, electricity, all chemicals and unskilled labour required shall be supplied by the MC, free of cost. The Contractor shall supervise and offer training, guidance, consultation, etc. to the staff during this period for smooth running of the plant. Required operation maintenance manual, catalogues, etc. be supplied in six sets along with all forms, registers, charts, etc. by the Contractor during this trial run maintenance period. Similary, three sets of colour photographs of major stages of construction shall be taken and furnished to the MC for record.

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Tender Document for Bhokar Water Supply Scheme

293

The plant will be taken over by the MC after expiry of successful! trial run period. If the contractor is required to run the plant beyond the trial run period, establishment charges shall be payable to the contractor. Contractor should get the requirement of staff in various categories and rate of monthly payment to them approved from MC, before the expiry of trial run period. Contractor shall get the payment of establishment, to the extent of people activity engaged by him for this purpose.

Contractor

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Tender Document for Bhokar Water Supply Scheme

294

Specifications for Civil Engineering Works C.E.S. 1 General : The following specification shall be applicable to all the Civil Engineering works under this contract. Items which are not covered under the following description shall be carried out as per relevant specification in ISS or Book of standard specification 1972 (Government of Maharashtra Publication) and as mentioned in the proceeding pages. C.E.S. 2 Materials 1. 2. 3. C.E.S. 3. All the materials shall be of best and standard type as laid down in P.W.D. hand book volume I and II. Red book of Public works Department, I.S. specifications and shall have to be approved by Engineer-in-charge. Labour : All skilled and unskilled labour, supervisors site Engineers etc. shall be provided as directed by the Engineer-in-charge. P.C.C. Course : All structures shall be provided with 10 cms thick levelling course of P.C.C. M 100 preceding the floor slabs or foundation slabs. This course shall have an offset of 15 cms. on all sides and it shall rest on strata of appropriate bearing capacity as per design. Refilling of Excavated Stuff : Sides of the structure below G.L. shall be refilled wherever necessary with selected murum from the excavated stuff duly watered and rammed in 15 cms layers. Plinth Fillings : The plinth shall be filled up with hard murum in 15 cms layers duly watered and rammed properly. Superstructure : The walls shall be in second class T.M. brick masonry in C.M. 1:6 in a framed structure, unless otherwise specifically mentioned panel wall shall be 23 cms. thick while partition wall shall be 12 cms thick. Plaster : All the faces of structure shall be provided with 20 mm thick cement plaster with neeru finish. External surface shall be in C.M. 1:4 while internal in C.M. 1:5. All water retaining faces shall however be in cement plaster in C.M. 1:3. Flooring : All floors of building except chemical store and chlorine rooms shall be provided with thick marble mosaic tiles flooring of approved quality and shade. Risers, trader, of all R.C.C. stair cases shall also be provided with mosaic or chequered tiles. Tiles shall be laid on 12 cms. thick P.C.C. in M 100 grade for ground floor. At upper floor it may directly laid on R.C.C. slabs skirting of mosaic tiles of one height for all in side faces of walls of the building. Doors and Windows : All building shall be provided with adequate numbers of doors and windows and ventilators as under. The total shutter area of all external doors, windows, ventilators shall not be less than 20% of the carpet area of structure. All external doors shall be provided with C.C. ramps steps for access inside or exit outside the buildings.

General Requirements 1.

2.

3. 4.

5.

6.

7. a)

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No. of Corrections

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Tender Document for Bhokar Water Supply Scheme b)

295

All the external and internal windows, ventilators and doors except the central main door of the filter house shall be of steel and as per I.S. specification. External door shall have a fan light of 45 cms height. Width of the main door shall not be less than 1.2 M and that of others shall not be less than 0.90 M. The door shall be half paneled and half glazed. Windows and ventilator shall be fully glazed. The glass fitted shall not weigh less than 3305 grams/sqm. All fastening and fixtures shall be strong and of heavy oxidized brass. Proper locking arrangement shall provided for each unit. All exterior doors, windows, ventilators shall be provided with 75 cms. wide R.C.C. chajja in a box type or any other suitable architectural form. All window sills shall consist of approved polished kadappa stone of 40 mm thick. The central main external teak wood door of the chemical house shall be fully panelled and having shutter thickness not less than 40 mm and shall be of decorative type. The size and type should be provided suitably as would prove to be a decorative feature. This door shall have a beautiful R.C.C. canopy. This door shall be provided with best quality of three coats of French polish of approved shade. All steel doors, windows and ventilators shall be painted with 2 coats of synthetic enamel paint of approved colour and shade as per standard specifications. All windows and ventilators shall be provided with M.S. grill of approved design from the Engineer-in-charge. Colour Snowcem Painting and Distempering All internal plastered and finished faces of the walls, columns, etc. shall be given three coats of oil bound distemper of approved quality and shade. The ceiling shall be given 3 coats of white cement paint. All external plastered and finished faces of wall columns, etc. shall be given 2 coats of cement paint of approved shade. The finish of exterior face shall give an aesthetic appearance to the buildings. The colour scheme shall be got approved from the Engineer-in-charge. PVC/AC rain water pipe lines shall be provided to all the building of required diameters and lengths so as to carry rain water to the side drains of the approach roads.

c)

d) e) f) g)

h)

i) 8. a)

b)

c) 9.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme APPENDIX "A-l" ABSTRACT OF SPECIFICATION Sr. No. 1. Item Excavation Std. Spec. No. B-1 & B-2 BdA-1 to A-13 A-I, A-2 A-4, A-5 A-6, A-7, A-8 A-9, A-10,a,b,c A-II, A-I2, A-13, A-I4 Page No. 24,25,26 27,28 257 to 265 5 to 18 Reference Volume - I Volume - II Volume - I

296

2.

Materials Lime, Cement Neeru Water, Fine and coarse aggregate Coarse, Stone Bricks, HT steel Wires, stainless steel, cast steel CI/WI/MS wire timber, oil paints

A-I5, A-I6, A-I7 a,b and c BdC2 B-I9.1 BdE1 to E7 Bd F2 to Bd F16 Bd F17 b8(a) 40 to 45 b 8(b), Bd G1 BdG2 G3, G4, G5, G6, G7 B9 (i) B 11 (i) B13 B20 B21 82,83,84 84,85,86 and 87 273 Volume-II and -I Volume -II Volume-II Volume-II

3.

Structural steel

4. 5. 6. 7.

Plane cement concrete Reinforced cement Steel Brick masonry

287 to 291 297 to 306 306 to 307 Vohime-1 313 to 317

Volume-II

8. 9. 10 11. 12.

Stone masonry Cement plaster Cement Pointing General wood work Oil painting

57 65 to 66 67 Volume -I Volume -I

Volume-1 Volume-1 Volume-I

13. 14.

Water proofing Paving

Bd J(3) 355,356 Bd MI, M2, M3 M4,M5,M6,M7 Bd MI2, Bd-M13 BdMI4, Bd MI5

Volume-II 379 to 383 Volume -II

15. 16.

Glazed tiles Marble mozaic

385,386 386,387

Volume -II Volume -II

Contractor

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Tender Document for Bhokar Water Supply Scheme Sr. No. 17. 18. Item Chequered tiles for stairs Wood finishes french polish Wooden Door Glass & Glazing Iron Grill Work Laying of CI pipes GI pipes Water meter Taps Gunmetal brass tap Rolling shutter MS Ladder Water closet Urinals Hand Basin Sink Cl / AC rain water pipes C1 soil pipes AC soil pipes Stone ware soil pipe Concrete soil pipes Septic tank Colour washing, white washing & distemper Welding Cement based paint Std. Spec. No. Bd M33 (a) & (b) BdN Page No. 392 399, 400 Reference Volume-II Volume-II

297

19. 20. 21. 22.

Dn T1 Bd.S Bd UI Bd VI to V3 Bd V5 Bd V6 & V7 Bd V8 Bd V10 & V11 Bd T56 Bd VI9 Bd V20 Bd V25 Bd V30 Bd V31 Bd V33 & V34 Bd V35 Bd V36 Bd V39 Bd V41 Bd V45 2-3 Bd P1 to Bd P6

477 465 to 467 537 547 555 553 to 554 555 555 511 559 559 to 560 562 to 563 565 to 566 566 to 567 567 to 568 570 to 571 570 to 571 573 574 575 411 to 414

Volume -II Volume -II Volume -II Volume -II

23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36 37. 38.

Volume -II Volume -II Volume -II Volume -II Volume -II Volume-II Volume-II Volume -II Volume -I Volume-II Volume-II Volume-II Volume-II Volume-II Volume-II Volume-II

39 40.

B 18

78 to 81

Volume-II 406 Volume-II

Bd 0.8.1

Contractor

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Chief Officer

Tender Document for Bhokar Water Supply Scheme ANNEXURE B Specifications for Mechanical Engineering Works General

298

The following specifications shall be applicable to all the mechanical and miscellaneous engineering works under this contract. Items which are not covered under the following description shall be carried out as per the relevant ISS specification code of practice. In addition to the specifications given below or elsewhere the material shall comply with relevant IS specifications. M.E.S. 1. Pipes and Specials All pipes and specials unless stated and except for sludge drainage arrangement shall be of M.S. or CI. `LA' class pipes. For sludge drainage arrangement R.C.C. NP2 class pipes shall be used. Diameter below 150 mm of R.C.C. pipes shall not be used any where. The filter control piping in pipe gallery shall be double flanged, fastened with nut, bolts and washers of good quality. Mild steel pipes and specials shall be made out of 8 mm thick plates. All M.S. pipes and specials shall be epoxy painted from outside surface. 3mm thick ply rubber packing with hubbock shall be used in between the flanged joints. The material shall be as per respective I.S.S. M.S. or C.I. pipe inserts with crippling flanged for insertion in concrete for sleeves, outlets, etc. shall be provided by the contractor. All pipes and specials which shall be laid below the floors, walls, foundations, etc. of plant structures shall be specifically of cast iron and shall be embedded in C.C. 1:2:4 (M:150). M.E.S. 2: Valves / Pen Stocks / Sluice Gates All the valves shall be C.I.D.F. type. Valves shall be of Kirloskar / IVC/ BSJ Sahu or such other reputed and approved make. Valves shall have the certificate of I.S.I. and shall be as per the relevant IS codes. All valves having diameter 300 mm and above shall have spur gear arrangement for manual operations. Dia. below 300 mm shall be with hand wheel for operation. All sluice gates shall be of approved make and with brass lining. It shall be provided with spur gear arrangement and hand wheel for easy manual operation. All pen stocks shall be brass lined and provided with suitable arrangement for easy and smooth manual operation. M.E.S. 3 Pipe Railing The railing shall consist of 25 mm dia. G.I. (medium) pipes in two number of row. The vertical posts shall be of M.S. angle 50 x 50 x 6 having attractive appearance placed at 2 M centre to centre. Its height shall be 90 cm. It shall be painted in 2 coat of anticorrosive paint of approved quality and shade. M.E.S. 4 M.S. Staircase The M.S. stair case shall be fabricated out of 30 cms. wide stringers of 12 mm thick plates. The steps shall 1.2 M wide of chequered plate or C.I. standard type. The tread shall not be less than 30 cms and rise not more than 20 cms .32 mm dia. single row G.I. pipe railing 0.80 M height shall be provided on both sides. The entire assembly shall be provided with 2 coats of anticorrosive paint of approved quality and shade.

Contractor

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Chief Officer

Tender Document for Bhokar Water Supply Scheme M.E.S. 5 : M.S. Ladder

299

The M.S. ladder shall be 0.45 M. wide consisting of 65 mm x 12 mm M.S. flat stringers with 16 mm dia. M.S. bars in double row at 30 mm c/c. The items shall include all fixtures and painting with 2 coats of anticorrosive paint. M.E.S. 6 : Water Level Indicator The indicator shall be of 15 cms wide brass plate mounted on C.T. wood frame with necessary graduation. All allied fixtures such as copper float, guide chain pulleys, counter weight, indicating arrow, etc. shall be provided. The entire unit shall be got approved from the Engineer-in-charge. The water level indicator shall be able to read water depth utpo 3.0 M. M.E.S. 7 : Rolling Shutters The rolling shutters shall be fabricated from 16 gauge steel lath with side guide, bottom rails, bracket, door suspension, shaft housing box at top, including mechanical gear operation arrangements. Locking arrangement shall be provided at bottom at both ends. The shutters shall be painted with 3 coats of anticorrosive paint of approved quality and shade. M.E.S. 8 : Cowl Ventilators The roof slab of wash water tank shall be provided with five C.I. cowl type ventilators. C.I. Cowl ventilators shall be of 100 mm dia. and of suitable height. It shall give attractive appearance. It shall be painted with 2 coats of anticorrosive paint of approved quality and shade. M.E.S. 9 : Finishing After entire completion of the plant, all the mechanical equipment, fixtures, fastenings shall be first thoroughly scrapped and cleaned and then shall be applied with 2 coats of anticorrosive paint of approved quality and colour and shade. M.E.S. 10: Lightening Conductor 1 No. of lightening conductor at the highest elevation shall be provided suitably for the entire plant area. It shall consist of : 1. 2. 3. 4. 5. 6. 7. Solid copper rod super terminal 25 mm dia. 1.5 M long with a knob at the end and with conical spikes on top. Suitable clamps to fix the conductor to the walls. Aluminum tape conductor 25 mm x 3mm G.I. earth plate 1 sqm in area and 1.5 mm thick. Charcoal commercial salt and sand for filling. G.I. pipe of 50 mm dia. upto 3 M height above G.L. There should be no contact between the conducting media and the R.C.C. structure for the entire length. It shall include excavation for the trench to the required depth, filling with charcoal, salt, sand excavated stuff, all the labours, necessary fixtures, etc. as per instructions of Engineer-in-charge and as per ISS 2309-1969, code of practice.

Contractor

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Chief Officer

Tender Document for Bhokar Water Supply Scheme M.E.S. 11 : Fire Extinguishers

300

Two numbers of fire extinguishers shall be provided one each in panel board room and laboratory. Each unit shall have capacity of 10 litres. It shall be of reputed make and as per I.E. Rules and shall have to be approved by the department. M.E.S. 12 : Manhole Covers C.I. manhole covers and frame shall be 900 mm x 450 mm rectangular as per IS 1726-1991. M.E.S. 13 : Reduction Gear Box The speed reduction gear box for agitators shall be of Radicon. Elecon or Shakti make only. It shall be as per the relevant IS specifications.

Contractor

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Chief Officer

Tender Document for Bhokar Water Supply Scheme ANNEXURE C Specification For Electrical Installations E.S.1 : General 1.

301

All the electrical installation both internal and external shall be carried out as per Indian Electricity Rules 1956 and subsequent amendments make to it from time to time. All the electrical installations shall be got approved tested and certified by the Engineer-in-charge of the works. The damages caused to the civil structures, etc. during electrical installations shall be made good by bringing such locations to the their normal conditions i.e. original finish, at no extra cost. All the materials used for electrical installations shall be of standard type and of reputed make as specified at relevant places hereafter. All the materials shall be got approved from the Engineer-in-charge before it is used on the work. All safety measures shall be adopted for all the installations as per Indian Electrical Rules e.g. providing earthing proper insulation, etc. The layout of the internal and external electrification of the entire plant shall be got approved from the Engineer-in-charge, well in advance. Necessary modifications shall have to be carried out as per instructions of the Department at no extra cost. All the external and internal electrical installations shall be properly screwed to poles and walls respectively to with stand storm, rains, etc. The electrical installation internal and external shall be adequate and should have decorative finish keeping in view of architectural beauty of the civil structures. The job involved in this, consists of providing erecting and commissioning of electrification necessary allied equipment with its fixture and accessories for the entire plant structures as per schedule `B' of the Tender. Adequate electrical power at 400/440 volts 50 c/s shall be made available for such work to the contractor, who will design and install and panel board for entire internal and external electrification and power requirement to the prime movers of all mechanical equipment of treatment plant e.g. flocculator, wash water pumps and agitators for alum solution tank, mixing equipment. The contractor shall have to install his panel board at a suitable location in the chemical house building. Adequate illumination shall be provided both internal and external, sufficient number of plug points shall be provided.

2. 3.

4.

5. 6.

7. 8.

E.S. 2 Scope of Work

E.S. 3 : Item Wise Requirements 1. Motor: All the prime movers required for mechanical equipment of water treatment plant would be suitable H.P. 3 phase squirrel cage induction motors working on 440 volts 50 c/s 1440 rpm, class of insulation B. Recommended Makes : Kirloskar, Siemens, Jyoti, G.E.C. Crompton or any other approved make for the Department. 2. Starters Direct on line starters for motors upto 5 H.P. star delta starters for 5 H.P. to 20 H.P. shall be provided. For motors above 20 H.P., auto transformer starter shall be provided.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

302

Recommended Makes : LT/LK, Siemens, Jyoti or any other reputed make subject to approval of the Department. 3. a) Panel Board All panels boards should be box type. Common Panel Board The panel shall be designed for the complete electrical load of treatment work e.g. for prime movers or mechanical equipment of flocculator, agitators of chemical tanks and wash water filling pumps, etc. and for entire load of internal and external electrification, ceiling fans, etc. It shall consist of bus bars of suitable section of copper designed for capacity considering above electrical load. Ammeters and voltmeters of suitable range with rotary selectors switches, phase indicator lamps with switches. OCB and ICTPN switches of adequate capacity with HRC fuses and capacitors. The panel board shall be closed type with panel opening either from front or rear side for carrying out inspection, operation and maintenance. Suitable ICTPN rewirable fuse units of adequate capacity shall be provided for lighting load. This panel board shall be housed in a suitable location in chemical house. b) Individual Local Push Buttons The local push button control for flocculator, wash water pumps and agitators shall consist of main switch of adequate capacity with HRC fuses. DOL/Star delta starter capacitor and single phase preventer. The location of these local push button switch shall be bear the application points. Recommended Makes : The panel board shall be of reputed make e.g. Siemens, L.T. L.K., Kilburn controller and schemeters, etc and switch gears and all other allied equipments of L.T. L.K. or of the other reputed make should be used subject to approval of Department. 4. Cables In this scope of work (Treatment Plant) the cable required for treatment plant load shall be included from common panel board of WTP. For connecting motor of various H.P. and panel board, suitable 3.5 core aluminum armored cable of adequate capacity with regard to starting current of motor shall be provided and should of reputed make (I.S.I. marks) by confirming to IS - 1554-1964 and laid as per standard practice in a channel as per Indian Electrical Rules. Recommended makes-I.C.C., Siemens, Gloster, Tropodur (I.S.I. make) 5. a) Wiring Internal : Point wiring with 2 x 1.5 sq mm PVC aluminum insulated and PVC sheathed aluminum wire shall be provided in a M.S. conduit of 16 gauge and 23 mm dia. with continuous G.I. earth wire of 14 S.W.G. completed with shock proof accessories erected on polished T.W. Block. The M.S. conduits shall be painted with 2 coats of anticorrosive black paint M.S. conduit pipes and all necessary conduit specials e.g. bends, tees, crosses, elbows, inspection and distribution covers, cut out, etc. shall be provided. Recommended Make : 1. 2. PVC sheathed wires : Aluminium conductors 250/440 volts-paramite, IACL, Henely, Gloster, Finolex/Tropodur/Polycab. Conduit Pipes : National , Khandelwal, Philips

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme b)

303

External : All the external wiring will be done using cable of suitable section. 2 core aluminum armored cable suitably erected with earthing in ground below 60 cm. With necessary screened. Sand column of 15 x 15 cm and cable placed exactly at centre or the sand column and bricks placed at both sides and top of the sand column as per I.E. Rules suitable on the cable and boxes, Gland shall be provided. Recommended makes : I.C.C. (Siemens, Gloster, Tropodur) Illumination a) Industrial Fluorescent Lights and Fitting Internal : White stove enameled industrial type fluorescent fitting of 22 gauge M.S. sheet open ended reflector with 1.2 M (4 ft.) x 40 watts tube, starter and polyester heavy duty choke, with decorative cover completely wired up with holders erected on T.W. block. It shall be mounted with two ball suspension places and flush with ceiling with all its accessories e.g. ceiling rose, etc. at place as directed. It shall be mounted in zig-zig pattern on walls where suspension type is not possible but exclusively as per direction of the Engineer-in-charge. The rate of illumination shall be 40 watt/20 sqm. The choice of providing single 40 watt or twin (2 x40) watts tube light shall depend upon the lateral and cross dimensions of the space proposed for an illumination. The contractor shall provide decorative type of illumination at the office, laboratory, canopy or such other prominent locations. External : Weather and water proof street light industrial type fluorescent for single 1.2 M (4 ft.) tube consisting of cast aluminum body finished in silver gray enamel and M.S. sheet flat reflector in white stove enameled complete with one piece moulded plastic cover enclosed in a metallic frame with rubber lining, etc. complete with 1.2 M x 40 watts tube, starter, polyester heavy duty choke and lock type holders erected in decorative manner. Recommended make : Fluorescent fittings with tube rods of 40 watts and 1.2 M (4 ft.) long polyester heavy choke lock type holders starters, etc. should be of same make e.g. Philips, G.E.C., Bajaj, Crompton with plastic cover.

6. i)

ii)

a)

Ceiling Fans : Ceiling fans of approved type with condenser A.C. 50 cycles/second 230 volts and 1400 mm (56)" sweep complete with all fixtures e.g. fan clamps, M.S. flat nuts and bolts and hooks, etc. with regulator canopy and down rod of required length. The down rod shall be long enough to that a clear distance between the floor and the fan blade shall not exceed 2.5 M. The ceiling fans shall be provided for every 20 m2 of Structure area and located as per directions of the Engineer-in-charge. Ceiling fans shall be provided to ground floor and first floor of chemical house building.

b)

Earthing Earthing for electrical installation both internal and external including panel board and motors with adequate capacity of G.I. wire of suitable gauge shall be provided at all suitable places and all earthing stations shall be inter connected so as to ensure maximum safety and G.I. plate charcoal, salt, etc. shall be used as per Indian Electricity Rules. The earthing wires will run along conduits upto plug points and as per the direction of the Engineer-in-charge.

c)

Switch Board with Switches for Building Wiring Piano type switches and three pin plugs shall be provided and properly fixed in polished T.W. block suitable size with sunmica top. Sufficient number of such switch boards for operating convenience shall be provide with indications of fans, lights, etc. on it.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SPECIFICATION FOR INDUCTION MOTORS 1.0 Constructional Features All the motor shall be of T.E.F. C. below 20 HP.

304

The motors for wash water pump and blower if above 20 HP shall be S.P.D.P. type. However all outdoor motors shall invariably of T.E.F.C. construction and with IP55 protection. 2.0 Performance a) Motors shall be capable of satisfactory operation for the application and continuous duty as required by the drive equipment. All motors shall have 20 % excess margin above maximum power required under operating conditions. b) Motors shall be capable of giving rated output without reduction in the expected life span when operated continuous under class II supply conditions. c) Motors shall be suitable for the method of starting specified. d) Motors shall be capable of starting and accelerating the load with the applicable method of starting without exceeding acceptable winding temperature, when the supply voltage is 85 % of the rated voltage. e) The locked current of squirrel cage motors shall not exceed 600 % of rated current 3.0 3.1 Insulation Any joints in the motor insulation such as at coil connections or between slot and end winding section shall have strength equivalent to that of the SIOl sections of coil. The insulation shall be give tropical and fungicidal treatment for successful operation of motor in hot, humid and tropical climate as per the applicable standards.

3.2

4.0

Painting External parts shall be finished and painted to produce a neat and durable surface which will prevent rusting and corrosion. The equipment shall be degreased and all rust, sharp edges, scales be removed and treated with one coat of primer and finished with two coats of final paint.

5.0

Tests All routine tests shall be conducted on motors and manufactures tests certificate should accompany the motor.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

305

SPECIFICATION FOR ELECTRICAL INSTALLATION WORK GENERAL CONDITIONS 1.0 Scope These specifications are intended to cover the general conditions for electrical installation work. 2.0 Equipment, Material & Services To Be Furnished The Contractor shall furnish all labour, skilled and unskilled, supervisory and administrative personnel, erection tools and tackles, transport vehicles and mobile cranes, equipment for testing and commissioning and implements necessary for timely and effective execution of the contract. The installation work is inclusive of supply and erection of materials, hardware, consumable and sundry items to complete the installation. The items of work to be performed by the contractor for equipment and material under this scope of work shall include but not limits to the following: a) Taking delivery of equipment at shop and at the port of railhead including unloading port clearance from customs etc. and safe transportation to site storage arranging storage with suitable weather protection. Complete assembly, erection and connection. Pre-commissioning check up for correctness of erection. Testing and commissioning in presence of Purchaser, successful trial operation and obtaining Purchaser's approval.

b) c) d) 3.0

Method Of Workmanship All work shall be installed in a first class, neat and workman like manner by technical skilled in the trade involved. The erection work shall be supervised by competent supervisors holding supervisory license from the Government. The installation shall be carried out in such a manner so as to provide adequate access to other equipment installed.

4.0

Protection of Work The contractor shall effectively protect his work, equipment and materials from theft, damage or tampering. Contractor shall be held responsible for any loss or damage to equipment and material until the same is taken over by the purchaser according to the contract.

5.0

Responsibility Of Erection The Contractor shall be fully and finally responsible for proper erection and safe and satisfactory operation of the plant and equipment under his scope of work to the entire satisfaction of the purchaser. Equipment and material which are wrongly installed shall be removed re-installed to comply with the design requirement at the Contractor's expense to the satisfaction of the purchaser.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 6.0 Excavation & Back filling

306

The Contractor shall perform all excavation and back filling to the original level with good consolidation as required for buried cable. The Contractor shall make his own arrangement for pumping out water that may accumulate in the excavation. 7.0 Steel For fabrication of all racks, trays, supports and fixtures bidder will arrange to provide steel. Steel for fabrication shall be straightened and cleaned of rust and grease. All fabrication shall be free of sharp edges. 8.0 Safety Measures The Contractor shall arrange to provide guards and prominently display caution notice of access to any equipment / area considered unsafe and hazardous. The installation / erection work shall also include the following works: a) b) c) d) Damages / missing items, if any shall be immediately reported to the Purchaser and Supplier Mounting of all accessory items at proper position as per manufacture's drawings. All required adjustments in the equipment as per manufacturer's instructions. F or indoor equipment all bus bar and internal power / control wire connections and for outdoor equipment any accessory which is integral part of the equipment shall be connected upto the equipment marshaling kiosk to make the equipment complete. Physical and functional checking of complete internal wiring as per approved wiring drawings and schematics. Grouting, chipping, making pockets in the foundation etc., to make the base suitable for mounting the equipment and making it good. For the items, where only erection is included in the Contractor's scope, the Purchaser may engage specialist engineers from the manufacturers to supervise the installation, testing and commissioning of their equipment. The Contractor shall extend full co-operation to these engineers and carry out the works as. per their instructions.

e) f) g)

9.1

The Bidder shall quote unit rate for supply and installation separately for all the materials / equipment as described above, and justify his offer for the relevant item. Quantities of various items will be finalized before execution within the scope of tender the Contractor carry out work as per specifications. Keeping the offer or the relevant item same, the unit rates will be modified to suit the quantities in proportion with the quantities given by the Contractor initially. Any change, which may be done subsequently will, if justified by the Contractor, will be valued as per P.W. Department's schedule of rate prevailing at that time for variation. No equipment shall be permanently bolted down to foundation structure until the alignment has been checked and found acceptable by purchaser. Manufacture's drawings, instructions and recommendations shall be correctly followed in handling, setting, testing and commissioning of all equipment. If any doubt / misunderstanding arises necessary clarifications shall be obtained from Purchaser.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme The following incidental works shall _e carried out by the Contractor: a) b) c) Checking, attending and necessary cleaning of jammed motors.

307

Removing of rust, depression and similar flaws from panel enclosure followed by cleaning and painting of the damaged portion. Replacement of damaged parts.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SPECIFICATIONS FOR ERECTION, TESTING AND COMMISSIONING OF ELECTRICAL EQUIPMENTS AND ACCESSORIES 1.0

308

Scope : This specification is intended to cover complete installation, testing and commissioning of electrical equipment i.e. motor control centers, power control centers, control panels, switch gears, motors, transformers, push button stations etc. Code & Standards The installation, testing and commissioning of all electrical equipment shall comply with all currently applicable statutes, regulations, fire insurance and safety codes in the locality where the work will be carried out. Nothing in this specification shall be construed to relieve vendor of his responsibility. 2.1 2.2 Unless otherwise specified, the work, material and accessories shall conform to the latest applicable Indian British or IEC standards. Good workmanship shall be in accordance with best engineering practices to ensure satisfactory performance and service life. Switch gear, Control Panel, etc. All alignment, leveling, grouting, anchoring, adjustments shall be carried out in accordance with manufacturer's instructions and or as directed by the purchaser.

2.0

3.0

Detailed Requirement Of Installation 3.1 3.1.1

3. 1.2 All modules shall be taken out and shall be cleaned preferably with vacuum cleaner. 3.1.3. All connections shall be fixing of equipment in switchgear control panels, etc. shall be completed, checked and adjusted to ensure safety and satisfactory operation of the equipment. 3.1.4. In some cases, minor modifications may have to be carried out at site in the wiring and mounting of the equipment to meet the requirements of the desire control scheme and the Contractor shall have to do the same at no extra cost. 3.2 Motors 3.2.1. The installation of motors shall be carried out in accordance with manufacturer's instruction and / or as directed by the Purchaser. 3.3.2. Checking and cleaning of bearing and charging / filling of lubricants whatever necessary. 3.2.3. Cleaning of core and winding, varnishing and drying but the windings and measurements of air gap for motor assembly at site if demanded. 3.2.4. Motors shall be run on uncoupled condition for few hours before coupling them with the drive equipment. 3.2.5. Motors shall be coupled with drive, adjusted and shall be tested on load. 3.3. 3.3.1 3.3.2 Miscellaneous Items The Contractor shall install miscellaneous items such as motors starters, local start / stop push button stations, etc. These equipments will be generally wall, column or stand mounting. The exact location will be as shown in the final drawing.

3.3.3. All supports or brackets needed for installation shall be fabricated and painted by the Contractors.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

309

3.3.4. All welding, cutting, chipping and grinding as and when necessary shall be carried out by the Contractor. . 4.0 Cable Termination 4.1 a) b) c) d) e) f) 4.2 Cable Termination shall include the following: Making necessary holes in bottom / top plates for fixing cable gland I box. Fixing cable gland / box, connecting armour clamp to cable armour. Dressing cable, pouring, compound, etc. wherever necessary to make termination complete. Putting cable lugs, crimping them on to cores of cable, taping bare conductors upto lugs, wherever necessary. Termination to equipment terminals. Supply and fixing of cable and core identification ferrules. Wherever purchaser has not provided M.S, plates for fixing cable tray supports. the Contractor shall install approved concrete fasteners for fixing cable tray supports. After completion of the erection / installation, each equipment shall be thoroughly inspected in presence of purchaser for correctness and completeness of installation. A check list may be furnished by the purchaser wherein all details to be checked and necessary instructions shall be listed. The inspection and checking shall strictly follow the check list. On completion of the inspection two (2) copies of the check list duty filled in shall be jointly signed by the Contractor and the purchaser, such endorsement. however, shall not relieve the Contractor of his obligation under the contract. After completion of erection work shall be conducted by the Contractor on each piece of the equipment as per the list to be supplied by the purchaser or his authorized representative. The Contractor shall provide all tools, instruments, material labour supervisory personnel for carrying out tests on the equipment and materials under his scope of work. . The Contractor shall record test result on approved proforma and furnish four (4) copies of the results to the purchaser for his approval within a week from the date of test completed. Before commissioning of the equipment, the Contractor shall set the relays to their recommended values. On successful inspection and testing, the equipment shall be commissioned and put on trial run along with other equipment in a manner mutually agreed upon. The Contractor shall carry out all rectification, repairs or adjustment work found necessary during testing, commissioning and trial run.

5.0

Inspections 5.1

5.2

5.3

6.0

Testing & Commissioning 6.1

6.2

6.3

6.4 6.5

7.0

Rectification & Taking Over 7.1

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 7.2

310

On successful commissioning and trial run and on carrying out the rectification work, the purchaser will takeover the installation either wholly or in parts as the case may be. Unless otherwise specified, the work, material and accessories shall conform to the latest applicable Indian, British or IEC Standard some of which are listed below: a) IS 3043 Code of practice for earthing

7.3

9.0

Installations Of Cables 9.1 The Contractor's scope of work includes unloading, laying, fixing, jointing, bending and terminating of cables. The Contractor shall also supply all the necessary hardware for jointing and terminating of cables. Cables shall be laid directly buried in earth, on cable trays and support in conduits and ducts or bare on walls, ceiling, etc. as shown in the Purchaser's Drawings where specified. All cable work and the allied apparatus shall be designed and arranged to reduce the risk of fire and any damage that may cause in the event of fire. Wherever cables pass through any floor or wall opening suitable bushes shall be supplied. If required by the Purchaser, the bushes shall be sealed using fire resisting materials to prevent fire spreading. Standard cable installation tools shall be utilized for cable pulling. Maximum pull tension shall not exceed manufacturers recommended value. Cable grips, reels or pulleys used shall be properly lubricated. The lubricants shall not injure the over all covering and shall not set up undesirable conditions of electrostatic stress. Cable pulling shall permit performance of collateral work without obstruction. Sharp bending and kinking of cables shall be avoided. The bending radius for various types of cables shall be more than those specified by the manufacturer. Power and control cables shall be laid in separate cable trays. The order of laying of various cable in trenches and overload trays shall be as specified below: Cables of highest systems voltage at the top most tier with second highest voltage on the second tire from top, third highest on the third tire from top, etc. with control instrumentation and other service cables in bottom most cable tier. Where groups of HV and LV and control cables are' to laid along the same route, suitable barriers to segregate them physically shall be employed. Where cables cross roads and water, oil gas or sewage pipes the cables shall be laid in reinforced spun concrete pipes of 15 mm minimum diameter, also 50 % space shall be kept as space for future, if more than one cable is to be laid through pipe. For road crossing the pipe for the cable shall be buried at not less than one meter depth. Cable less than 15 mm dia unless otherwise approved by the Engineer. Cable shall be protected at all times from mechanical injury and from absorbing moisture. Some extra length shall be kept in each cable run at a suitable point to enable one or two straight through joints to be met at a later date, if any fault occurs. To facilitate visual tracing, cables in trays shall be laid only in single layers where design, permit. Cables shall be laid in proper sequence so as to avoid No. of Corrections Chief Officer

9.2

9.3

9.4

9.5

9.6

9.7 9.8

9.9 9.10

Contractor

Tender Document for Bhokar Water Supply Scheme

311

unnecessary crossing of other cables upon entering or leaving a run of tray. Cable splices shall not be permitted. 9.11 Cable jointing shall be in accordance with relevant Indian Standards Codes of Practice and Manufacturer's special instructions. Materials and tools required for cable jointing work shall be supplied by the Contractor. Cables shall be firmly clamped on either sides of a straight joint at not more than 300 mm away from the joints. Identification tags shall be provided at each joint and at all cable terminations. Single core cable joints shall be marked so that phase identify at each joint can be determined easily. The joints shall be loaded at most suitable places. When two or more cables are laid together, joints shall be arranged to be staggered by about three meters. Before jointing insulation resistance of both sections of cables to be jointed shall be checked. The Contractor shall install and connect the all power, control and heater supply cables, for motors. The Contractor shall be responsible for correct phasing of the motor power connections and shall interchange connections at the motor terminal box, if necessary, after each motor is test run. Metal sheath and arm our of the cable shall be bonded to the earthing system of the station.

9.12

9.12 9.13 10.0

Cable shall be minimum 3 mm thick and 25 mm wide galvanized M.S. flat spaced at every 1.0 m. interval Cable Trays, Accessories & Tray Supports 10.1 10.2 10.3 Cable trays shall either- be run in concrete trenches or overload supported from building steel, floor slab, etc. Cables shall be clamped to the cable trays in both horizontal runs and vertical runs by suitable site fabricated clamps. Cable tray supporting system shall be adequately designed so as to keep maximum deflection within permissible limit. The Contractor shall supply and install conduits, pipes as specified and as shown in drawings. All accessories / fitting required for making installation complete shall be supplied by the Contractor. Conduits and pipes shall be of GI ad of heavy duty type. 11.2 11.3 Flexible metallic conduits shall be used for termination of connections to equipments to be disconnected at periodic intervals. Conduits or pipes shall run along walls, floors and ceilings, on steel supports, embedded in soil, floor, wall or foundation, in accordance with relevant layout drawings. Under ground portions a conduit installation to be embedded in the foundation or structural concrete shall be installed in close co-ordination with collateral work. Exposed conduit shall be neatly run and evenly spaced. Exposed conduit shall be adequately supported by racks, clamps, straps or by other approved means. These fittings shall be of same material as conduits. Each conduit run shall be marked with its designation as indicated on the drawings. Identification shall be made possible by means of brass ribbon, So located that each run of conduit is readily identified at each end. When one or more cables are drawn through a conduit, cables shall fill not more that 50 % of the internal cross sectional area of the conduit. No. of Corrections Chief Officer

11.0

Conduits & Pipes 11.1

11.4

11.5

11.6

Contractor

Tender Document for Bhokar Water Supply Scheme 11.7

312

Entire system of conduit after installation shall be tested for mechanical and electrical continuity throughout and permanently connected to earth by means of special approved type earthing clamp efficiently fastener to the conduit. For jointing purpose, the Contractor shall have available at site, dies for threading pipe or conduit. All such threaded ends shall be reamed after threading and anticorrosive paint applied.

11.8

12.1

Induction Motors The insulation resistance of the motor will be measured and recorded. The direction of rotation of the motor shall be checked. The anti-condensation heater circuit shall be checked.

13.0

Switchgear Control Panel Desks 13.1 13.2 Base of outdoor type -units shall be sealed in an approved manner to M.S. channel concrete to prevent ingress of moisture. The Contractor shall take utmost care in handling delicate equipments and mechanism like instruments, relays, dragging shall be avoided as for as possible. Proper pipe shall be provided underneath when dragging for short distance. Wherever the instruments and relays are supplied separately, they shall be mounted only after the associated control panels/desks have been erected and aligned. Any damage to relays and instruments shall be immediately reported to the purchaser. The Contractor shall also make all necessary adjustments as specified by the manufacturer for proper functioning of the equipment. The settings of relays shall be carried out. Outgoing feeders and incoming feeders of cable or bus duct shall be connected at the Switchgear panel and as explained in the installation procedures of cables and bus ducts. Meter installation of all power and control wiring, the Contractor shall carry out operating tests, manufacturer's installation tests. Megger tests for insulation, polarity checks on the instrument transformers. The Contractor shall also carry out the drawing of equipment in case of low insulation resistance. Sleepers shall be provided when unloading on bare ground. Meter placing on foundation alignment, leveling, etc. shall be carried out in neat workmanlike manner. Dehydration of silica gel breather shall be carried out. For the power/control cables projecting above the ground the termination of cable box/marshalling box, shall be run in GI conduits of suitable cross section. Ends shall be sealed with bitumen compound. The cable end box of the transformer of detachable type shall be supported properly enabling the transformer to be taken out for repair without disturbing the cables.

13.3

13.4

13.5 14.1

Transformer 14.1

14.2 14.3

14.4

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SPECIFICATIONS FOR ERECTION, TESTING AND COMMISSIONING OF ILLUMINATION SYSTEM 1. Scope

313

This specification covers complete installation. testing and commissioning of indoor and outdoor illumination system. 2. Scope & Standards 2.1 The wiring, installation and commissioning of complete illumination system shall comply with al currently applicable of regulations. Fire insure and safety codes in the locality where the work will be carried out. Nothing in this specification shall be construed to relieve vendor of this responsibility. Unless otherwise specified, the work material and accessories shall conform to the latest applicable Indian, British Of" IEC Standards. Good workmanship shall be in accordance with best engineering practices to ensure satisfactory performance and service life Expect as specifically approved by the site installation of conduits and lighting fixture shall be taken only after all major services such as piping, structural work, etc. in that particular area have been completed. Location of lighting fixtures, switches and receptacles shown on the drawings, are indicative and shall have relocated to suit site condition. Expect as noted mounting height of various lighting equipment horn finish floor level shall be as follows: ii) iii) a) b) 3.4 3.5 3.6 Lighting Control switches Receptacle with switch For Indoor For Outdoor 500 mm 1000 mm 1000 mm

2.2 2.3 3.

General Requirements 3.1

3.2 3.3

All cables and conduits from lighting panel upto first lighting fixtures shall be identified with aluminum tag giving circuit reference number Lighting panel number shall be indicated when more than one panel for an area is to be provided. A number of lighting panels shall be earmarked separately for supplying power to the space heaters mounted in various switchgear panels and motors. Steel surfaces exposed, to weather shall be thoroughly cleaned for removal of rust and shall be given a primary coat of zinc chromate and two finish coat of paint. All metal parts not accessible for painting shall be made of corrosion resistance material. Cable/Conduit separator shall be provided at an interval of 500 mffi for horizontal runs and 750 mm for vertical runs. Cable/Conduits shall be kept, wherever possible at least 300 mm away from pipes, heating devices and other equipments. For the purpose of calculation of connected loads of various circuits multiplying factor of 1.25 will be assured to the rated line voltage for lamp fixtures to take into account the losses in the control gear.

3.7

3.8 3.9 3.10

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 3.11

314

The Contractor shall supply junction boxes, pull boxes, terminal blocks, glands, conduits and accessories (elbow, tees, bends, etc.) and supporting anchoring materials to make the installation complete. The Contractor shall work in coordination with the civil Contractor when openings, sleeves are required in walls and floors. Holes by the Contractor shall necessarily be patched in a good and approved manner. All types of wiring concealed or unconcealed shall be capable of easy inspection. In all types for neatness and good appearance. In hazardous areas, the founding wire shall run along the conduits throughout the installation and all conduits and fixtures shall be effectively grounded. Conduits shall be grounded at the ends adjacent to switch boards at which they originate. Where specified, DC system shall be installed to provide necessary illumination in case of an emergency. Emergency lighting cables shall run in a separate conduit system. For street lighting steel tubular poles complete with fixing brackets shall be used. These poles shall be coated with bituminous preservative paint on the inside as well as embedded outside surface. Exposed outside surface shall be painted. Before a completed installation, or an extension to an existing installations is put into service, installation test stipulated IS : 2274 and other codes of practices shall be carried out by the Contractor in the presence of Owner's/Engineer's representative. Individual lighting circuits inside building shall be wired with 250/440 volts grade copper/aluminum conductor PVC insulated flexible wires cables. The circuit wire shall be colour coded as follows: White - Phase of DC positive wire Black - Netural or DC negative wire

3.12

3.13 3.14

3.15

3.16

3.17

4

Wiring In Conduits 4.1

4.2

Pull wires in a conduit shall be drawn simultaneously. No subsequent drawings are permissible. Necessary, pull wires shall be provided by the Contractor. The wires shall not be pulled through more than two equivalent 90° bends in a single conduit run. Wiring shall not be spliced at any place other than junction boxes with approved type connectors of terminal strips, and for lighting fixtures, connection shall be turned of through suitable round conduit or junction bars. For vertical run of wires in conduit, wires shall be suitably supported by means of wooden ply at each pull junction bores. Lighting for all outlying areas shall be carried out using 1. 1 kv grade. Aluminum conductor, PVC insulated steel wire armored cables between lighting panel and junction box near the lighting fixture.

4.3 4.4

4.5 5.

Outdoor Lighting 5.1

5.2

All lighting poles shall be stepped tubular steel poles type ISTP 15 as per ID 2713 and shall be the painted. Length shall be as given in ES-5 c. 5.3 Except as noted cables for Road and outdoor lighting shall be directly buried No. of Corrections Chief Officer

Contractor

Tender Document for Bhokar Water Supply Scheme in ground at a depth of 600 mm or routed in available cable trenches. 5.4 6.

315

Lighting cables shall be taken through GI/Hume pipes buried in ground at 1000mm below the Road/Rail track crossing. For outdoor earthing or lighting poles, masts etc. cut GI wire shall be used The wire shall be run buried in ground at a depth of 600 mm. Lighting fixtures, receptables, junction boxes, switches conduits and handrails shall be earthed using GI wire of minimum size of 12 SWG. The earthing wire shall run over the entire length of the conduit between fixtures and the corresponding lighting panel where it shall be connected to earth grid. For 3 phase power socket outlets, separate grounding wire shall be provided. After completion of the work complete illumination system shall be thoroughly checked and tested by the Contractor in presence of purchaser or his representative as per the list. The Contractor shall provide all tools, materials, labour and supervisory personnel for carrying out the tests. The Contractor shall carry out all rectification, repairs of adjustment work found necessary during testing and commissioning. The Contractor shall record the test results on approved proforma and furnish test report/results (4 copies) for approval. On successful commissioning of the system and on carrying out necessary rectification work, the purchaser will take over the installation either wholly or in parts, as the case may be. Where it shall be connected to earth grid. For 3 phase power.

Earthing 6.1 6.2 6.3

7.

Testing & Commissioning 7.1

7.2 7.3 7.4 7.5

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SPECIFICATION FOR EARTHING AND LIGHTENING PROTECTION 1. Scope

316

This specification covers requirement of earthing and lighting protection system. The specification is intended to cover complete supply, installation, testing and commissioning of the above system. 2. General Information 2.1 The design, supply and performance of the system shall comply with all currently applicable statutes, regulations and safety codes in the locality where the systems will be erected and commissioned. The earthing and lighting system shall be installed in conformity with the requirement of Indian Electricity Act 1910, as amended and the Indian Electricity Rules, formed there under Indian Standard Code and Practice and other statutory regulations that may be relevant to the erection. Unless otherwise specified, the equipments, material and accessories provided by the Contractor shall conform to the latest applicable Indian. Standards or Indian Electricity Code Standards, some of which are listed below: IS Code of practice of earthing IS Code of practice for protection of building and allied structures against lightening 3. Earthing System 3.1 Two separate and distinct earth leads shall be used for earthing each equipments/ structures enclosing the power conductor and one earth lead for metallic structures adjacent to electrical installation. Metallic frames of all electrical equipment rated above 250 volts, must be earthed by two distinct connections with earth system. Earthing cables crossing over metallic structures such as conduits, pipe lines, etc. shall be minimum 300 mm away from such structures. All underground connections and joint in earthing system shall be brazed/welded connections with equipments/structures shall be bolted type. Conducting petroleum jelly shall be applied to contact surfaces of all bolted joints and joints shall be covered with bituminous compound and taped. When GI conductors are connected to aluminum conductors the contracted surfaces of GI shall be covered with bituminous compound and taped. Natural connections shall never be used for the equipment earthing. Earthing conductors shall be protected against mechanical damage. Earthing conductors running along the structures, wall, etc. shall be cleaned at every 750 mm interval. Minimum size of earth conductor shall be in accordance with IS : 3043. However, sizes of earth conductors for equipment shall be at least half the size of power conductor, limited to maximum of 120 mm of Aluminum.

2.2

2.3

3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 3.11 4.

317

All earth lead connection shall be as short and direct as possible and shall be without kink. Adequate number of earthing pits and electrodes as shown in enclosed drawing shall be used in conjunction with earthing grid. Minimum spacing between two adjacent earth pits shall be less than size (6) meters and shall be kept sufficiently away from structures to clear footings. Main grid loop for a building shall be. installed outside boundary of the building, buried in backfill. It shall be installed at minimum depth of 600 mm outside the building wall. The main earth loops (MEL'S) in plant areas shall be generally routed along cables when equipments are located away from MEL'S suitable sub-loops may be run upto them for deriving connections for individual equipments. Tall structures shall be protected from lightening strokes by suitable lightening protection system to be erected and installed. Down-comer shall not be tapped in between for equipment earthing. Cable sheaths, metal conduits, casing, etc. shall not be connected to lighting protection system. Down comers shall be as short as possible. Each down coner shall be provided with a testing point located at a height of about 1000 mm from ground level. A minimum 2 meter separation shall be maintained between any ohter electric conductor and lighting protection system. Earthing and lighting protection system shall be bound to each other to prevent side flash over. If adequate clearance between two system can not be maintained. Each floor of building shall have its own earth bus embedded in concrete. Earthing grid embedded in the floor slab shall have a minimum concrete cover of 50mm. Each buses of different floor and main grid shall be connected by at least two conductors of main grid conductor size. Every alternate column (Steel of RCC) of the building housing electrical equipment shall be connected to main earthing grid. Every conductor shall be welded at interval of 1000 mm along their run on steel structure and shall be at interval of750 mm along the wall. Each transformer neutral shall be provided with two separate earth leads to two separate earth pits located near transformer. Wherever earthing conductor crosses the trenches tunnels, railway track, etc. it shall be below the trench, etc. Equipment structures shall be earthed at two diametrically opposite points. Each pole of H. V lighting arrestor and coupling capacitor shall be grounded No. of Corrections Chief Officer

Earthing & Main Grid 4.1 4.2 4.3

4.4

5.

Lightening Protection 5.1 5.2 5.3 5.4

5.5 5.6

6.

Indoor Equipment Earthing 6.1 6.2 6.3 6.4 6.5

7.

Outdoor Equipment Earthing 7.1 7.2 7.3 7.4

Contractor

Tender Document for Bhokar Water Supply Scheme with minimum one separate earth pit. 7.5

318

CTs secondary winding shall be. connected to earthing grid by minimum two earthing conductors. CT and VT secondary neutral shall be earthed at the terminal block where they enter the control panel. Every alternate post of switch yard fence shall be earthed and gate shall be earthed by flexible G.I. wire. Any two diametrically opposite legs of each switchyard tower, without lightening protection shield wire, shall be earthed at the base of tower. A well distributed earth mat shall be provided below ground on which operator would stand and operate the H.V isolator or circuit breaker. Entire earthing system and lightening protection system shall be tested for continuity by ELV tester after installation. For the earthing and lightening protection system, the connections shall be thoroughly checked. The earth resistance shall be checked, recorded and resistance shall be improved in case, it is higher than acceptable limits. The Contractor shall carry out all rectification, repairs of adjustment work found necessary during test and commissioning. Sizes and number of earth leads for earthing various items and other technical particulars shall be as specified. Earthing conductors are shown diagrammatically. Exact location of earthing conductors, earth electrodes and test pits and earthing connections may be changed to suit the site conditions. Earthing conductors in the building, running parallel to walls and columns shall not be less than 150 mm. away from the wall/columns. Suitable earth risers, shall be provided if the equipment is not available while carrying out earthing connections. Wherever, earthing conductor passes through wall, galvanized iron sleeves shall be provided for the passage of earthing conductor. Water stop sleeves shall be provided. Water stops shall be provided wherever earthing conductor enters the building from outside. Whenever the conductors are to be buried, the Contractor shall co-ordinate with other civil Contractors to ensure that the conductors are installed before concreting. All connections shall be of low resistance. Contact resistance shall be minimum. Steel conductors, above ground level shall be galvanised. All conductors shall be free from any defects. Earthing conductors shall not run in direct contact with control and other cables. Single core cable armored shall be earthed at one end. The cable trays shalJ be earthed to main grid at least at two points and at every 25 meters intervals.

7.6 7.7 7.8 8.

Testing & Commissioning 8.1 8.2 8.3 8.4

9.

Earthing & Lighting Protection System 9.1 9.2

9.3 9.4 9.5

9.6

9.7 9.8

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 9.9 Testing of Earthing System

319

Purchaser may ask to carry out earth continuity tests, earth resistance measurements and other tests in presence of him which in his opinion are necessary to prove that the system is in accordance with design, specification, Indian Code or Practice and Indian Electricity Rules. The Contractor shall have to bear the cost of all such tests. 9.10 The lightening protection vertical air terminations and/or horizontal air termination conductors shall remain in their installed position even during severe weather conditions. All joints in the down conductors shall be of welded/brazed type. All metallic structures in the vicinity of down conductors shall be bonded to the down conductors. The rest joint for down conductors shall be directly connected to the earthing system.

9.11

9.12

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme SITE TESTING AND COMMISSIONING 1. Standards 1.1

320

The testing and commissioning covered by this specification shall, unless otherwise stated, comply with the requirement of the latest editions of applicable Indian Standards and currently applicable regulations. The manufacturers recommendation for testing and commissioning shall be carried out.

1.2 2.

General The following physical tests shall be carried out on all the equipment. a) b) c) d) e) f) g) h) Check for physical damage. Check name plates as per specification. Check adequacy in tightness of nuts, bolts, clamps and other connecting terminals. Check leakage of oil if any, oil level, air pressure wherever applicable. Check earth connections. Check cleanliness and glaze of insulator and bushing surfaces. Check proper lubrication provided for moving parts. Any other checks, specified in the relevant code of installation and manufacture's drawing/catalogues. The test to be carried out on various equipment shall be as follows:

3.

Insulation Resistance Test The insulation resistance test shall be carried out on the following equipment. a) b) c) d) EHV insulation HV installation above 1 KV Power circuit of voltage upto 1 KV A C. and D. C. auxiliary circuits By 500 V megger By 2500 V megger By 1000 V megger By 500 V megger

These results of all the above tests shall be submitted to the purchaser. The purchaser may ask for some addition tests to be carried out which in his opinion are necessary to determine that the woks comply with the specification manufacturer's recommendations or IS Standards. The Contractor shall also carry out such additional tests.

Contractor

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Tender Document for Bhokar Water Supply Scheme APPENDIX "D" ADDITIONAL DETAILED SPECIFICATIONS ON ALLIED WORKS 1.1 General

321

In addition to the main stream treatment process works the Contractor shall provide (design and supply) all the other facilities, services and allied works required necessary on site to complement the treatment process and to provide a composite water treatment plant in accordance with the intent and spirit of the specifications. Tendering Contractors shall include all the allied equipment and facilities if not covered or implied in other specifications. Should the Contractor consider the specified minimum facilities are insufficient, for his own particular version of the conceptual design, he shall provide any additional items of plant or allied works that he considers necessary. Should the Contractor consider certain items specified, would be of no use in his own arrangements and design he may omit them, provided he makes specified mention in his tender submission, fully discusses the omissions and presents a reasoned argument for the omission or reduction shall be with the Engineer. The contractors tender submission shall be deemed to include all the allied works required by his own designs and specifications. 1.2 Sampling The Contractor shall provide sampling points throughout the works to permit proper and adequate monitoring of the treatment process. The Contractor shall ensure that his arrangements permit ready access to all the required sample points, and that access manholes, cover plates, steps and hand holds are appropriately provided for the sampling throughout the works. Sampling apparatus, containers, etc. shall be provided by the Contractor if not included with the laboratory equipment. The Contractor shall also provide continuous pumped samples of Raw, settled, filtered and chlorinated water to the Works Laboratory and clarity bowl cabinet. 1.3 Clarity Bowl The clarity bowl cabinet shall be provided in the upper filter gallery which shall be floor mounted and display four continuously running pumped samples in clear glass bowls with white dominated background. It shall be fully valved and provided with drainage through piping for waste. The bowls shall be at least 150 mm high and 100 mm diameter. 1.4 Flow & Level Indicators The Contractor shall provide indicators and instruments for measuring the flows of incoming raw water outgoing filtered water wash water and chemical dosing, and water level indicators for wash water tank, pure water sump and chemical solution tank. 1.4.1 Level Indicators Elegant water level indicators reading upto 1 cm. a) b) c) Wash water Reservoir. Pure water sump. Alum tanks

Note: For (a) & (b) level indicator shall be local float operated indicators.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme 1.5 Water Supply Services

322

Pump and gravity service water systems shall be provided by the Contractor to enable a supply of chemical solutions, cleaning the works, housing down external and internal structures chambers and channels, flashing chemical feed pipes, domestic supply and any other purpose required by the Contractor's design. The Contractor shall arrange for water supply to chemical house, by tapping the wash water reservoir to be constructed over the chemical house. This reservoir shall be filled by wash water pumps to be located in the filter house. Pipe fittings, etc. shall be provided by the Contractor to ensure that adequate supplies are available for the works and that any of the three stock tanks can be filled with water within 20 minutes. Supply points for washing and cleaning the tanks, floors shall also be provided. The piping shall be fed from the wash water reservoir for washing all units of the treatment plant with necessary control arrangements. 1.6 Waste Disposal The waste from all works including chemical works, inlet, clariflocculator filtration and domestic waste from toilets shall be collected and carried in a common drain by gravity to a common chamber near the boundary. The Contractor shall design the removal of all waste overflows, etc. Waste waters shall be collected and disposed by means of well designed drainage system. 1.6.1 Chemical Wastes The Contractor shall provide throughout the works drains and overflows for all chemical tanks, water tanks, etc. The full chemical waste water system shall be provided to be discharged into the waste disposal system of the plant. The Chemical waste piping shall be either PVC or HDPE pipes, but duly concealed from direct sun heat. 1.6.2 Other Wastes The Contractor shall provide a complete drainage system for disposal of wastes. The waste water discharge main water shall be connected with all the branches provided to collect and dispose the waste products from the various units. Tendering Contractors shall specify the rates of flow, falls, diameters and levels of all drains leading from any part of the works arranged by them in order to suit their own design. 1.7 Inter Connecting Pipe Work The material to be adopted for piping is summarized below: a) b) e) d) e) f) g) Contractor Clarifier feed pipe By pass lines Piping in filter gallery Wash water pumping main to reservoir Feed lines from reservoir Chemical transfer piping Chemical feed pipes Cast Iron Spirally welded M.S. or Cast Iron. Cast Iron with flanged joints. Cast Iron Cast Iron PVC or HDPE (Protected from direct sun heat) PVC or HDPE No. of Corrections Chief Officer

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323

The domestic sewage from the latrines and toilets shall be collected separately and treated in a septic tank, and the effluent shall be connected to the final collection chamber. The pipes to be used for drainage system should stoneware/R.C.C. 1.8 Lighting General domestic and background electric lighting will be provided around the works including a low level of external road lamps under the Civil works. The Contractor shall provide as part of his electrical installation, additional lighting around the Works where specifically required for operational purposes. The Contractor shall also provide external single phase, 15 Amp. sockets wherever necessary for maintenance purposes. 1.8.1 Emergency Lamps The Contractor shall provide a minimum of 5 self-contained emergency lighting units or provide 5 hours illumination following a power cut. The units shall be of D.C. low voltage 6 V/8 watts type continually charged under normal circumstances from the Works of A. C. supply. They shall be appropriately located at strategic points in the lower filter gallery, upper filter gallery, the machinery hall, chemical house, the laboratory, pump house 1.8.2 Flood Lights Flood light switching shall be located at appropriate points along the various walkways or at other locations to be approved by the Engineer. 1.9 Fire Extinguishers The Contractor shall provide 10 Nos. of approved CO2 fire extinguishers and equal No. of refills and install these in consultation with the Engineer. Out of which 5 Nos. shall be dry power CO2 type and 5 Nos. shall be of general type. 1.10 Lifting Arrangements The Contractor shall arrange the works to facilitate the erection, maintenance and dismantling (for maintenance) of all items of equipment supplied by him. Certain runways beams and specific requirements foreseen are specified in this document and all of these are to be supplied by the Contractor. In addition, the Contractor shall provide pre-designed purpose made lifting and handling points on all equipment supplied by him unless handling is possible by conventional means and no damage to item could result from normal methods of working. 1.11 Lightening Conductor The Contractor shall ensure that any structure, must or other installation provided by is adequately designed to minimize damage to the works from lightening strike. Any lightening conductors shall be designed in accordance with the latest edition of the appropriate Indian Standard Code of Practice IS 2903-69. Earthing systems throughout the works shall be isolated and separate from lightening conductors. 1.12 Passageways Ducts, etc. For Services In detailing the works the Contractors shall wherever possible adopt purpose designed service ducts between structures and buildings and he shall organize the works services, cable routines, sample pipes, chemical lines, etc. in common routings in a neat, orderly and efficient manner.

Contractor

No. of Corrections

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Chemical lines shall wherever be possible mounted below sample lines, and sample lines below electrical cables. Service ducts, shall be adequately illuminated by the Contractor and of sufficient width to reasonably accommodate service personnel. AlI such access ways shall be drained. External ducts shall be in concrete with precast covers. Overheads cable and service trays shall be avoided. 1.13 Datum Accuracy The Engineer will establish a single benchmark on site for use during the construction of the works and the Contractor will be advised of its location and altitude. The responsibility for the preservation of the benchmark will rest with the Contractor. The Contractor shall be entirely responsible for all levels and settings taken from this datum and used by him in the works and he shall make his own arrangements for the establishment and preservation of other bench marks around the works. No additional payment will be made by the Owner for rectification of any inaccuracies found by the Contractor or the Engineer in the line, level or tolerance in the works. All levels used by the Contractor shall be deemed to refer solely to the original base level set up on site by the Engineer. . 1.14 Hydraulic Considerations The Contractor shall be fully responsible for all the process hydraulics in the works within the limits of his contract. A hydraulic gradient through the works has been shown on the drawings to guide tendering Contractors as to the approximate hydraulic falls and water level control points envisaged through the process and tendering Contractors should note that their submissions shall include a more detailed and revised version of the gradient with the additional details at the various flows quoted in the Specifications. 1.15 Hydraulic Losses The Contractor shall (in his design and submissions) design for and account for the losses throughout the works from all causes. The losses to be considered as if the pipe work is in 'old' condition and shall be determined from the Hazen Williams formula. Hydraulic losses in straight channel lengths shall be determined using the 'Manning' formula (N-0.016) With the above in mind, the Contractor shall specify any particular requirements he has for the internal surface finish of any channel or concrete surface with his tender. Detailed Hydraulics In order to relieve Contractor of the burden of detailed hydraulic design during the tender period, the submission of full detailed calculations may be deferred until finalization of the details of the works (within 3 months of the date of acceptance of the tender). All tendering Contractors shall however, include sufficient outline calculations to assess hydraulics of the process offered, to determine the full extent of the provisions required in the works to suit their own design and to show clearly the details of their offer as specified elsewhere, including the hydraulic gradients clauses. 1.16 Weir Plates Where critical to the satisfactory hydraulic performance of the works, the Contractor shall provide adjustable weir plates and specify the setting tolerances and provide the details required for any discharge or control weir. Contractor No. of Corrections Chief Officer

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Weir plates shall be manufactured in stainless steel and fixed with stainless anchors, nuts and washers. Plates are required at the following overflow weirs: a) b) c) d) 1.17 The flume channel overflow weir. Flow division weirs in distribution chamber. Each filter discharge weir. The Contact tank discharge weir.

Spillages & Leakages Chemical dosing pumps shall be so arranged as to prevent any leakage from their heads or valves from finding their way into underdrain or unsuitable ducts or electrical under floor channels. Plant requiring lubrication of bearings or gearboxes shall, wherever possible, be mounted on grease trays or steel pans to collect excessive lubricant or spillage.

1.18

Name Plates & Labels Panel identification name plates, motor and other equipment nameplates (e.g. "Lime Feed Pump No.3") shall be provided in English. Nameplates shall be appropriately sized in relation to the relevant item of equipment and its surroundings. The final design shall be to the approval of the Engineer. The Contractor shall generally provide labels throughout the plant generally to the standard specified for electrical controls in Clause 13.17.

1.19

Ventilation The Contractor shall detail the works buildings with sufficient ventilation where required by his process arrangements in order to minimize condensation problems within the works structures and to ensure adequate ventilation and to permit water of chemicals to freely flow into or out of any enclosed tanks, building, or chamber in the works. Where forced ventilation is required, the Contractor shall supply all the blowers, fans, controls, etc. necessary according to his requirements.

1.20

Lubricants Following satisfactory testing of the plant, the Contractor shall give a list of grades of his recommended lubricants for the works. The number of different grades of oils and lubricants shall be minimized.

1.21

Calibration Curves & operating Charts The Contractor shall compile calibration curves for the instruction manual showing the actual operational characteristics and performance of all appropriate items and equipment supplied in the works. Curves shall be provided at least for the following:

a) b) c) d) e)

Chemical meeting pump for each various concentrations of solutions or suspensions (i.e. Alum 1.2, 2.5 and 5%). Each chemical solution flow. The inlet works flume. The filter discharge weirs (H/Q). Any Other similar device or arrangement in the works. No. of Corrections Chief Officer

Contractor

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326

In addition, and where applicable, the Contractor shall supplement the calibration curves for the chemical solution with a set of operational cures to enable the operators to determine the dose rate setting for any required dosage into any throughout rate for the various solution strengths mentioned above. . These curves shall be incorporated in the works manual complete with device as to their periodic renewal. 1.22 Spares The Contractor shall provide a maintenance programme to enable the owner to maintain the works in future with respect to replacement of spares. A comprehensive list of all spare parts shall be prepared indicating availability of each spare. The Contractor shall also submit a list of spares which will be required to be replaced during a period of two years. Tendering Contractors are not required to include the cost of spare parts in the price offer. They shall however, indicate the rates of such spares which will not be considered in evaluation.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme APPENDIX 'E' ELECTRICAL APPARATUS AND SYSTEMS I. Power Factor Improvement Capacitors 1. 2. 3. No. required 1 No. per motor of suitable KV AR ratings. Rating 440 V, 3 ph, 3 wire, 50z. To improve power factor upto 0.95. Each capacitor unit of the bank shall be complete with: Internal HRC fuse Discharge resistor Bushing resistor Bushing etc. 4.

327

Dielectric material shall be all polypropylene or mixed dielectric (paper and poly propylene.) The guaranteed loss W/KVAR including discharge resistor loss shall be indicated in the tender.

5. II. 1. 1.1 1.2 1.3 1.4 1.5 2.

Applicable standard: IS 2834 Earthing To be provided as per IS : 3043 Main earthing conductor: 50 x 6 mm G.I. Earth pits: 250 M long, 50mm. dia G.I. pipe. Other details as per IS : 3043 for continuous protector. Over all earth resistance: Less than 1 ohm. Number of pit should be minimum: 4 Nos. Lightening Earthing For building and tanks 32 x 6 mm. copper tape shall be used upto copper earthing plate of size 50cm x 50 cm x 3 mm. placed 1.5 m. below G.L. The topmost bar conductor shall be of gunmetal. The Contractor should arrange for satisfactory continuity test.

Earthing for electrical installation excluding incoming transformer

2.1 III. 1. 2.

To be provided as per IS : 2309 650/110 V Power Cables: 650/1100 V grade, standard/solid aluminum conductors, PVC insulated, inner sheath of PVC, copper wire flexible and extruded PVC sheathed conforming IS:l554. . 650/1100 V Control Cables: Similar to 650/1100 v power cables except that the conductors- shall be of copper. For all circuits connected with CTs, 2.5 mm. copper conductors shall be used. For other circuits 1.5 mm2 copper conductors shall be used.

Power and Control Cable:

2. a) b)

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

328

APPENDIX 'F' MANUFACTURING AND PAINTING OF THE PLANT AND EQUIPMENT 1.1 Scope The section specifies the general requirements and standards for plant and equipment to be supplied and commissioned by the Contractor along with protection and painting of the equipment and plant. Irrespective of whether a particular standard or Code of Practice issued by the Indian Standard Institution or their equivalent, has been mentioned or not the Contractor is required to be familiar with all the codes and standards required for procuring the best materials and maintaining the highest quality in the plant erection. Only standards amended to date shall be used for reference. 1.2 Standard & Codes The design, workmanship, materials, strength and dimensions of all parts shall comply with one or more of the latest standards regulations and codes issued by the following: a) The Indian Standards Institution (I. S.) b) American Water Works Association. c) Technically equal standards subject to the approval of the Engineer. The Contractor shall submit a list of standards he proposes to adopt with his tender. 1.3 Testing & Storage All materials required for the execution of the works and the cost of this shall be included in the Schedule of prices. The materials used shall in every case be of first grade quality. Any material rejected by the Engineer shall not be allowed to remain in the site premises. All material shall be stocked, stored, protected to preserve the quality of the material until such time as they are to be installed into the permanent works. The contractor shall also arrange the necessary facilities for Sub-Contractors, supplies or manufacturers regarding the safety and storage of such equipment. The Contractor shall submit test certificates and samples of all materials which he proposes to use, to the Engineer. All materials, etc. for use in the works shall comply with the requirements of the latest revision of the appropriate Indian Standards specified or their equivalent. 1.4 Installation Of Machinery The machinery shall be mounted on the flooring with flat steel packing of thickness selected for leveling. One packing only of selected thickness shall be used at each location which shall be adjacent to each holding down bolt. The number of shims shall not exceed two at each location and the thickness of each shim shall not exceed 3 millimeters. The machinery shall be aligned, leveled and fixed by the nuts of the holding down bolts with a spanner of normal length. All cover flanges and joints shall be properly faced, bored, fitted, hollowed, moulded or chamfered as the case may be, according to the best practice and all working parts of the plant and equipment shall be accurately fitted, finished, fixed and Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme adjusted. 1.5 Bolts, Nuts, Stud & Washers

329

Nuts, Bolts, Studs and Washers shall conform to appropriate Indian approved standards. All fastenings for galvanized components or aluminum alloy components shall be galvanized. All holding down and anchor bolts, nuts, washers and anchor plates for use internally in areas where there is no corrosive atmosphere shall be galvanized and all exposed surfaces shall be painted after assembly and tightening. Drilled anchor fixings for use on concrete or other structures shall be approved by the Engineer. 1.6 Bearings & Lubricators. All bearings shall be rated and sized to ensure satisfactory and smooth running without vibration under all conditions of operation for a minimum life of 50, 000 hours. They shall be sufficiently lubricated and adequately protected from ingress of moisture and stand the particular climatic condition prevalent at the site. The type of lubricant and intervals of lubrication for each individual item of plant shall be suggested in the Operation and Maintenance Instructions. A list of recommended lubricants shall be a part of the Operation and Maintenance Instructions. . 1.7 Positioning & Alignment Of Equipment In case where number of components such as motors, couplings, gearboxes, etc. are from an integrated equipment or plant then each and every item shall be positively located in its correct operational position by means of dowels, locating pins, fitted bolts or other approved means to ensure that correct realignment can be easily achieved when reassembling the item after complete overhauling. 1.8 Welding, Casting & Forging 1.8.1 Welding The Contractor shall supply to the Engineer, before fabrication, detailed drawings of all welds and its procedure. No welding shall commence unless Engineer approves the same. The welders shall be qualified in accordance with requirements of Indian Standards that all the welded joints shall be stress relieved. 1.8.2 Casting All casting shall be standard gray close grained quality to the specified Indian Standards. The structure of the casting shall be free from non metallic and injurious impurities. 1.8.3 Forging All the forging shall be made as per standard specifications to be approved by the Engineer. They shall be subjected to internal examinations and non destructive tests for detection of flaws. The Engineer may ask for shop inspection and testing which the Contractor shall arrange at his own cost. 1.9 Pipe Work The Contractor shall include for the supply, delivery and erection all the necessary pipe work and fitting within the building, sumps and valve chambers. Contractor No. of Corrections Chief Officer

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All pipe work shall be adequately supported with purpose made fixings and when passing through wall, shall incorporate a puddle flange or other suitable sealing device. Flanged joints shall be made with 3 millimeters thick, full face rubber gaskets pierced to take the bolts. The hydraulic test pressure applied at the manufacturer's works shall be twice the working head or one and a half times the maximum working head, whichever is the greater. Site test shall be conducted after installation at one and a half times the maximum working head. All pipe diameters shall be selected to maintain velocity to a maximum of2.00 meters per second subject to other criteria and particular use in the construction. The Contractor shall be responsible for cleaning pipe work before and during commissioning. This includes removing dirt, rust, scales, etc. 1.9.1 Cast Iron Pipe work Cast Iron flanged pipe work shall conform to IS : 1536 and IS ; 1537 Cast Iron fittings and specials shall comply with the Indian Standards (IS: 1538) and non-standard specials shall be avoided. Cast Iron flexibly jointed pipes and, fittings shall be as per relevant Indian Standards. Steel pipe work shall be to appropriate Indian or other approved standard and all pipe assemblies shall be made from piping to this specification. 1.9.2 Plastic Pipes Unplasticised PVC pipes shall only be used with the approval of the Engineer and shall comply with IS : 4985 PVC pipe work, shall be as per IS : 7634. 1.9.3 Copper Pipes Copper pipes shall be to IS : 1545. 1. 9.4 Galvanized steel pipes Galvanized steel pipes shall be to IS : 1239. 1.95 Pipe work Identification The Contractor shall include for painting identification markings on all pipe work within buildings and other structures for easy reference. All identification markings shall conform with the standard recommendations. 1.9.6 Laying of Pipelines The Contractor shall accept full responsibility for laying and fixing of all pipe work included whether specifically shown in the Contract Drawings or not. Pipe work laid in trenches shall be laid to a uniform grade and supported on a bed of approved granular material. The whole of the jointing work and materials necessary to fix and connect the pipes shall be included in the Contract. 1.10 Valves & Penstocks All Valves shall be flanged as per appropriate Indian Standards. All Valves shall be tested hydraulically to pressures as specified in the above standards. Contractor No. of Corrections Chief Officer

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All Valves shall satisfy the requirements of the open and close test as specified in the relevant standards. 1.10.1 Sluice Valves Sluice valves shall be : a. Waterworks standards to IS : 780(non - rising stem) upto 300 mm. diameter and b. General purpose to IS : 2906 (non - rising stem) for the valve over 300 mm. diameter bore. c. Sluice valves below 300 mm. diameter shall be of Kirloskar or IVC make only. d. Kirloskar Brothers e. Indian Valve Company However, the sluice valves above 300 mm. dia shall be of Kirloskar or IVC make only. Extension spindles, headstocks and foot brackets installations shall include all necessary brackets, intermediate support, etc. Headstocks for non-rising spindle installations shall incorporate a valve position indicator. All hand wheels, headstocks, foot brackets and guide brackets shall be of cast iron. All valves shall carry identification marks and/or plates in accordance with the Indian Standards, stating the valve identification and a brief description of its function. All valves shall be sized such that the velocity through the valve when fully open does not exceed 2.00 meter per second at the maximum design flow. All valves shall be works tested hydraulically as per provisions of standard specifications. 1.10.2 Reflux Valves Reflux valves shall comply with IS ; 5312, and be double flanged cast iron unless otherwise specified. They shall be of the quick acting non-slam single or multi door type, designed to minimize time of closure. All valves shall carry identification marks and/or plates in accordance with IS . 5312. All valves shall be sized such that the velocity through the valve when fully open does not exceed 2.00 meters per second at the design flow. 1.10.3 Air Relief Valves Air relief valves shall be of the double orifice pattern with gray or ductile cast iron bodies. The inlet flange shall be faced and drilled in accordance with standard specifications. The valves shall be capable of releasing gas from the pipeline without diminishing of flow due to back pressure and also to allow admission of air during pipeline emptying at a rate to prevent very low pressure in the pipe line. Air valves shall be fitted with an isolating gate/sluice valve. 1.10.4 Penstocks Penstocks shall be of cast iron with scraped non-ferrous sealing Each penstock shall be provided with a suitable hand wheel of adequate diameter for the easy operation and gearing shall be supplied where necessary. Hand wheels shall have engraved on it the direction of closing which shall be "Clockwise". Contractor No. of Corrections Chief Officer

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Spindles shall have machine cut trapezoidal or square form threads. They shall be of stainless steel or manganese steel with the exception of non-threaded sections of extended spindle installations which may be of mild steel. Headstocks and foot brackets shall be provided for non-rising spindle penstocks where necessary. Guide brackets shall be provided where necessary. Headstocks with non-rising spindle installations shall have a penstock position indicator. Penstocks shall be watertight under the conditions of head and direction of maximum design flow. The frames and doors of cast iron penstocks shall be made from close grained grey iron. The penstocks shall be designed so as to ensure tight closure while maintaining freedom of door movement during operation and minimizing sliding wear of the sealing faces. 1.11 Testing Of Pumps Each pump shall be tested at the manufacturer's works in accordance with standard practice. The tests shall cover the whole range of duties to which the pumps will be required to handle, from which characteristic cures (including NPSHR) must be produced . The pump casing shall be hydraulically tested to twice the maximum probable working static pressure. 1.12 Inspection & Testing Of The Plant The acceptance by the Engineer of the plant after testing shall in no way relieve the Contractor of his responsibility for the performance of the plant after erection. The plant as a whole shall be tested for assessing the overall performance of the plant under the design conditions and this must be achieved to the complete satisfaction. The Contractor shall submit test certificates with each item showing clearly the performance of the equipment, the test conditions and the duration of the test and other details. 1.13 Name Plates Each equipment shall have a metal nameplate fixed in an approved manner with the make's name, type and serial numbers and full details of the design parameters such as power input, speed pressure, etc. date of manufacture all clearly marked. Brass plates shall be used for this purpose. 1.14 Painting & Protective Coatings 1.14.1 This part of the specification enlists the general requirements and standard of painting and applying anti-corrosive protection for the machinery, plant, equipment and installations supplied for the Contractor. The Contractor shall be responsible for the appropriate cleaning, preparation, priming, painting, plating and complete protection of the items supplied by him. All coating shall be finally suitable for the long term protection of the plant under operational conditions. The Contractors shall pay particular attention to both the extremes of temperatures and the various corrosive environments within the works buildings and structures or due to splashing action of machinery or any leakages or minor defects which could occur in time at or around the chemical works. 1.14.2 Application of paint

Contractor

No. of Corrections

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The contents of all cans and containers of all materials shall be properly and thoroughly stirred as per instructions of the manufacturer, before and during use and shall be suitably strained as and when necessary. All brushes, tools and other equipment shall be in a clean condition and surfaces shall be clean and free from deleterious matter and dust during painting. All materials shall be used strictly in accordance with the instructions issued by the manufacturers concerned. All surface fittings, except hinges shall be removed before painting and re-fixed on completion. All coatings shall be allowed to dry thoroughly before succeeding coats are applied. All under coats for oil paints and clear finishes shall be rubbed with abrasive paper and all dust removed before the succeeding coat is applied. 1.14.3 Preparation and Painting of Plant The Contractor shall prepare scheme-for painting and providing protective coatings with basic considerations as to environment in which a particular equipment is likely to function. Special care shall be taken for corrosive atmosphere in vicinity of various chemical work functioning in the plant. The steel work placed in non-aggressive atmosphere and location shall be hot dip galvanized.

Priming and first finishing paint system for galvanized surfaces in aggressive conditions shall consist of the following: i.

All surfaces of galvanized fabricated steel work (except those on which an adequate protective patina has not formed and/or those surfaces which have received initial protection) shall receive a priming coat immediately following erection at site and prior to immersion in or exposure to aggressive solutions or atmospheres. All surfaces shall be lightly wire-brushed and all traces of grease and other contaminants removed. All loose particles shall be removed and immediately thereafter all surfaces including those of fastenings shall be given a priming coat of an approved epoxy corrosion resistant primer. All surfaces of galvanized fabricated steel work on which an adequate protective paint has not formed shall be treated and given a priming coat immediately following erection at the site and prior to immersion in or exposure to aggressive solution coat of approved epoxy coal tar primer. The final finishing paint system for surfaces other than galvanized surfaces shall be given with appropriate epoxy paint in two coats. For finishing coat to surfaces in corrosive atmosphere appropriate epoxy coal, tar paint shall be used. The epoxy resin content together with its cuttings agent shall not be less than 40% by weight of the solid binder. The ratio of pigment to binder shall not exceed 10% by weight. External surfaces of exposed steel pipes shall be given two coats of approved aluminum paint. All mild steel stairways, ladders, railings pillars, etc. shall be hot dip galvanized and/or be provided with oil paint coats of approved type and shade. All machine parts such as motors, control panels, starters, shall be given 3 coats of approved enamel paint. Contractor No. of Corrections Chief Officer

ii. iii.

Tender Document for Bhokar Water Supply Scheme APPENDIX 'G' SECTION 12 - PLANT ERECTION, TESTING AND COMMISSIONING 1.1 Programme Of Work Implementation Schedule The programme of work to be executed by the Contractor shall be as under: a) Equipment

334

This includes Design and manufacture of all equipment to be supplied under the contract including inspection and manufacturers work testing, storage, erection, testing, commissioning and maintenance. b) Civil Works This includes construction of all buildings, plant tanks, foundation, stairs, access ways, ducts, etc. The implementation programme for the civil and equipment shall be given by the Contractor in the form of CPM/Pie Chart. The Contractor shall follow well coordinated programme for completing the works in respects of both the civil works and equipments. 1.2 Detailed Calculations & Drawings The Contractor shall throughout the Contract provide the design details, documents and drawings specified and shall accept and meet as an integral part of the Contract the obligation to provide such additional details and information as is required by the Engineer relating to the works. 1.3 Inspection In Works The Contractor shall give the Engineer advance information, notification of his works manufacturing and testing programme for all mechanical and electrical plant. This shall include the inspecting and testing of the plant at the Sub-Contractor's works. All advance notification to the Engineer under this shall give the full postal address of the works or factory concerned and the name, telex and telephone number of the individual responsible for arranging the tests and inspections with the Engineer or his representatives. 1.4 Dispatch of Plant Before dispatch from the manufacturer's works all the equipment and plant shall be adequately protected during transit, storage and erection against corrosion and accidental damage. The Contractor shall be fully responsible for the plant being so packed and/or protected. The plant shall be packed to withstand rough handling in transit and all packages shall be suitable for storage including at site/so as to remain in excellent condition until it is taken out for erection. The Contractor shall arrange for payment of all taxes, duties, insurance and freight charges, Municipal taxes, and all other fees and charges to transport, insurance and storage of the plant and equipment. The Contractor shall send advice of dispatch to the Engineer so that this information is received well in advance. 1.5 Storage of Plant The Contractor shall arrange for the Insured storage of all materials. The store for the materials shall be secured and the store and plant shall be guarded, maintained and inspected as necessary by the Contractor or his agent.

Contractor

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Tender Document for Bhokar Water Supply Scheme 1.6 Equipment to be Installed in Civil Works

335

All interconnecting pipe work and other items of plant required to be "built-in" or fixed in advance of the main mechanical/electrical erection shall be supplied and delivered to the site of the works. Items of plant and equipment to be "built-in" shall be identified by paint markings cross referenced to pipe work and plant drawings and schedules to ensure that it can easily be located and identified before building into the structure. The detailed construction drawings submitted to the Engineer shall include full reference to this aspect. 1.7 Site Store & Office The Contractor shall construct at his own expense, satisfactory temporary office and residential accommodation required for proper execution of the works. The accommodation and its surrounding shall be maintained by the Contractor in a neat orderly manner, and returned by him in good shape, to the satisfaction of the Engineer. 1.8 Plant Erection In addition to conditions of Contract the Contractor shall provide only skilled persons for the work of plant erection and testing. The Contractor shall provide all erection equipment, tools, cranes and tackle necessary for the erection of the plant. Any special access requirements for mobile cranes or other equipment shall be provided with prior approval of the Engineer. 1.9 Damage to the Existing Works The Contractor shall protect the plant and equipment from damage and shall immediately rectify any deterioration or damage occasioned to the structures or any plant. equipment or other things which may result due to his occupation of the structures. The protection and any repairs shall be done to the satisfaction of the Engineer. The Contractor shall take special precautions during execution by blasting which may be resorted to in a highly controlled manner to prevent damage to the existing shutters and nearby localities. Similarly, the sanitation wastes shall be directed in such a way that it shall not mix with any natural flows without proper treatment. 1.10 Completion of Erection Work The Contractor shall be deemed to have completed erection when the entire plant is ready for the Final Site Testing by the Engineer. The Contractor shall inform the Engineer in writing, and in the opinion of the Engineer the plant is in position and compete in accordance with the requirements of the specifications and other relevant documents. 1.11 Inspection After Erection On completion of erection or at such later period ad may be require by the Contractor and approved by the Engineer as necessary to complete the works, another joint inspection shall be carried out and the Engineer shall provide the necessary instructions for keeping the plant ready for testing. . 1.12 Testing the Plant All testing of the plant shall be at the expense of the Contractor who shall provide all labour material and any instruments required. Testing shall be carried out until the Engineer is satisfied that each of the processes is satisfactory, reliable and all Contractor No. of Corrections Chief Officer

Tender Document for Bhokar Water Supply Scheme

336

components are satisfactory and to the standards specified in this documents and the Contractor's Tender specifications. Any defects or shortcoming in performance -of standards shall be made good at entirely the Contractor's expense and minimum time and in an approved manner. Any item of plant is irreparable or insufficient for its function the Contractor shall, without . delay, replace the item with another satisfactory item or better unit all at his own cost. 1.12.1 Hydraulic Testing On completion of installation, laying, jointing and cleaning, all tanks, structures and pipelines supplied or laid by the Contractor shall be tested for water tightness as directed by the Engineer. Pipe shall be tested to a pressure 50% in excess of the maximum working pressure and this must be maintained without loss of water for such period as specified in the relevant standard or code. Tests shall be repeated if the Engineer may consider' this necessary to satisfy himself that water tightness has been achieved. Also chemical solution tanks, vessels, etc; shall also be tested for water tightness. 1.12.2 Test on Flow Instruments The Contractor shall carry out calibration tests to demonstrate the accuracy of all rate of flow instruments, recorders, and integrators incorporated in the works over a range of flows from the minimum to the maximum anticipated design rates in the plant as required by the Specifications. Commissioning of the Plant The Contractor shall after consultation with the Engineer and following the testing of the components and systems of the works, receive permission from the Engineer for the commencement of the commissioning period. 1.13.1 Duration of Commissioning Period The Contractor shall carry out the commissioning and provides trials of the plant under actual working conditions for a period of not less than 6 months. 1.13.2 Chemicals for Commissioning The owner will provide the chemicals and the bulk water supplies for the commissioning of the works and setting to work of the plant. Contractor's Representative During the commissioning and trial period the treatment works shall be supervised on a full time basis by the Contractors Commissioning Representative who shall be a qualified Engineer or Chemist and who shall fully instruct the Owner's permanent staff on all aspects of the operating procedure. The Contractor will be required to devote the minimum of one month full time instruction to the Owner's staff. Disinfection of Plant Immediately before any section of the works is commissioned the Contractor shall disinfect the section by means of sodium hypochlorite solution or other approved chlorinating agent with water containing 50 mg/lit. of chlorine to the satisfaction of the Engineer. Surplus Materials & Site Clearance On Completion of the work, the Contractor shall hand over any surplus material that the Engineer may consider will be useful for the Owner to have as a reserve for which payment will be made in accordance with Contact. Surplus materials not so selected shall be removed from site by the Contractor.

1.13

1.14

1.15

1.16

Contractor

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Tender Document for Bhokar Water Supply Scheme APPENDIX `H' LABORATORY REPORT Percentage break up of payment of conventional type WTP Sr. No Description of item Civil cost 75 % Rs. 1) Hydraulic and process design approval 2) 3) Structural design approval Inlet works consisting of aeration foundation venturi flume, flow meter flash mixer with agitator 4) 5) Clariflocculator Rapid sand filter and filter house. 6) Chemical house, administrative block, chemical tank, chlorine room, chlorinator, lab equipment, sanitary block and air blowers. 7) Wash water tank and wash water pumps, pipe assembly valves etc. 8) 9) 10) 11) ] 2) 131 Bypass arrangement Pure water sump & P.H. Drainage arrangement Electrification Hydraulic testing Trial run and site cleaning 2% 13 % 2% 7% 2% 100% 4% 6% 7% 2% 100 % 6% 11 % 14 % 18 % 23 % 23 % 24% 19 % 2% 4% 8% 2% Mechanical Cost 25 % Rs. 1%

337

Contractor

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Tender Document for Bhokar Water Supply Scheme

338

Wise payment schedule of payment for conventional type WTP

Sr. No 3 (a)

Percentage Inlet works - civilAeration fountain, venturi flume, flash mixer with agitators. Excavation P.C.C. & foundation Superstructure, consisting columns, base slab, steps, walls venturi flume walk way Miscellaneous items as per A/T such as plastering, railing, painting, glazed tiles

Particular

4% 4% 82% 10% 100%

3 (b)

Inlet work - mechanical On supply of equipment as per A/T such as agitator for flash mixer, motor, switch gear, panel, `V' notch, flow meter and pipe assembly for aeration fountain. On erection and testing of the above equipment. Clariflocculator - Civil Ecavation P.C.C Bottom Slab Vertical wall of clarifier Launder wall, slab & flocculator wall Misc. works as per A/T such as Plaster, railing, painting, precast, steps on walk way.

80% 20% 100% 10% 12% 28% 28% 16% 6% 100%

4 (a)

4 (b)

Clariflocculator - Mechanical On supply of equipment as per A/T such as clarifier bridge rails, gear boxes, motor, switch gear, panner, inlet pipe and sludge pipe with valves and constant bleeding equipment. On erection and testing of the above equipment Rapid and filters and filter house - Civil Excavation P.C.C Base Slab Filter house upto roof slab. Filter box upto and including walk way. B.B. Masonry walling, doors and windows. Plastering and flooring Misc. works as per A/T such railing painting, cover on rate control chamber, M.H. Frame cover on pure water channel

80% 20% 100% 7% 7% 16% 30% 20% 10% 5% 5% 100%

5 (a)

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Tender Document for Bhokar Water Supply Scheme 5 (b) Rapid sand filter beds and filter house - Mechanical On supply of pipes, valves and gates as per A/T. On supply of under drain pipe and tees as per A/T. On supply of filter media as per A/T On supply of gauges and loss of head and rate of flow meter as per A/T On erection and testing of the above equipment 6 (a)

Chemical house, chemical tank administrative block, chlorine room chlorinator and sanitary block etc. - civil Excavation

339

40% 10% 20% 10% 20% 100%

5% 12% 20% 20% 5% 20% 10% 2% 1% 5% 100%

P.C.C., footing and column up to GL Columns, beam upto and including roof slab of ground floor Columns, beam upto and includingroof slab of first floor Chemical tanks B.B. Masonry, doors and windows Plastering and flooring Stair case Porch Misc. works as per NT such as painting

6 (b)

Chemical house - Mechanical On supply equipment for chemical tank with pipes and valves as per NT. On supply of chlorinator with pipes and valves as per NT. On supply of air blower, motor, switch gear, panel pipes and valves etc On supply of sanitary and WS equipment as per NT. On supply of lab equipment and furniture as per NT. On erection and testing of above equipment

10% 20% 40% 5% 5% 20% 100%

7 (a)

Wash water tank - Civil Container excluding roof slab. Roof slab, internal column and beams. Plastering, ladder, lightening, conductor water level indicator, railing Misc. works as per A/T such as. painting etc. 60% 25% 10% 5% 100% 40% 40% 20%

7 (b)

Wash water tank - Mechanical On supply of vertical pipe assembly with inlet, out let, over flow valves and specials as per A/T On supply of wash water pumps, motors, switch gear and panel board as per A/T. On erection and testing of the above above equipment.

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Tender Document for Bhokar Water Supply Scheme 100% 8 (a) Bye pass arrangements - Civil Bye pass channel Bye pass chamber Other Trial Run as per A/T. 8 (b) Bye pass Arrangement - Mechanical On supply of gates as per A/T. On erection and testing of gates 9) Pure water sump and pump house Excavation P. C. C., and foundation slab Vertical wall Columns, beam and roof slab of sump Columns, beam and roof slab of pump house B.B. Masonry, doors and windows Plastering and flooring Other Misc. works as per A/T such as painting, M.S. ladder M.H. frame and cover etc.

10 (a)

340

75% 15% 10% 100% 80% 20% 100% 10% 15% 15% 10% 20% 10% 15% 5% 100%

Drainage arrangement - Civil Excavation of drainage pipe line and construction of chambers as per A/T. 100%

10 (b)

Drainage arrangement - Mechanical On supply of drainage pipes On lowering, laying and jointing of pipes 80% 20% 100%

11

12

Electrification - Mechanical Internal and external electrification to entire plant as per A/T including main panel board and switch gear as per A/T Hydraulic testing - Civil Inlet works Clariflocculator Filter beds Wash tanker tank Bye pass channel Sump Drainage arrangement

100% 6 22 30 12 5 20 5 100% 100%

13

Trial run and site cleaning

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

341

Note: 1) As separate provision is made for hydraulic testing and testing of mechanical equipment in the break up schedule no further deduction through R.A. bills on account of hydraulic testing is necessary.

Contractor

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Tender Document for Bhokar Water Supply Scheme APPENDIX 'I' PERFORMANCE SCHEDULE 1. PERFORMANCE SCHEDULE 1.1 1.2 1.3 1.4 1.5 2. INLET WORKS MEASUREMENT FLUME FLASH MIXER FLOCCULATOR- CLARIFIER FILTERS CHEMICAL PLANT

342

TECHNICAL SCHEDULES

2. ] 2.2 2.3 2.4 2.5 2.6 3.

WASHWATER PUMPS AIR SCOUR BLOWERS FLOCCULATOR - CLARIFIER CHEMICAL TRANSFER PUMPS CHLORINATION EQUIPMENT ELECTRICAL EQUIPMENT

MANUFACTURERS SCHEDULES 3.1 3.2 MAIN EQUIPMENT CHLORINATION EQUIPMENT

Contractor

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Tender Document for Bhokar Water Supply Scheme

INLET WORKS MEASURING FLUME

343

PERFORMANCES SCHEDULE 1.1

Flume hydraulically designed to Indian Standard No. Width of approach channel .

M M M M M M

Length of approach channel Length of flume exit Breadth of throat Invert level at flume exit drop Flume head at M3f hr M3/ hr Length of over flow weir Head over weir at M3 / hr M3 / hr Freed board at M3/ hr M3/hr

M M M M M M

Free fall in the flash mixer at

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Tender Document for Bhokar Water Supply Scheme

FLASH MIXER PERFORMANCE SCHEDULE 1.2

344

Type of Machine Impeller details No. of blades Blades type R.P.M. Power dissipated into the process Motor power Motor Speed Static volume of one mixing chamber Plan size Water depth GT value achieved at flow rate of Weight of Machine KW KW RPM M3 MxM M M3 / hr KG

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Tender Document for Bhokar Water Supply Scheme

CLARIFLOCCULATOR PERFORMANCE SCHEDULE 1.3

345

No. of units (flow - M3/hr) 2.

Flocculator

No

Nominal volume Dimensions (internal) Inlet velocity Exit vl"locity G Value achieved (max) (min) Type of Machinery and Power input Details of Speed variations Maximum blade tip speed 3

Sedimentation Zone Volume

M3 M mm/sec. mm/sec. Sec-1 Sec-1

RMP

M3 hour M M

2 m m2

Retention period (per tank) Inner Diameter Outer Diameter Gross Area

Area to be deducted for launders

Net effective area Rise Rate or overflow rate Side Water depth Weir loading

m2 M/hour M m2/day

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme ' Floor slope Scrapper Mechanism Type Power input

4. Sludge

346

KW

Number of draw off points per Clarifier Diameter or draw off pipe Diameter of telescopic values Peak estimated draw off rate

Average estimated draw off rate Estimated percentage loss in abstraction a. During the average Monsoon season

mm mm L/Sec. L/Sec.

% % M/sec.

b. During the average Fair seasons Design draw off pipe peak scour velocity

Contractor

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Chief Officer

Tender Document for Bhokar Water Supply Scheme

FILTER

347

PERFORMANCE SCHEDULE 1.4

1.

General

Overall internal size of each filter

Surface area of media, each filter Number of sections, each filter

MxM MxM

Dimensions of each section Number of Filters Operating for flow M3/hr standby

Filter Rates Average

MxM

M/hr M/hr

Low

2.

ë Top water level in filter shell-low Level of top of fine filter media Level of bottom of fine filtering media Level of floor nozzles Level of top filter shell base slab Level of outlet weir Level of wash water overflow weir Head difference across filter M M M M M M M M

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Tender Document for Bhokar Water Supply Scheme 3.

Media

348

Filtering media depth Fine filtering media size range Effective size (D10/D 60) Uniformity size (D10/D 60) Specific Gravity Support layer (if any) depth size range Effective size (D 10) Uniformity co-efficient (D 10/D 60) 4.

Floor details

mm mm to mm

mm to mm

Materials of construction Floor nozzles- manufacturers name and address' No. of Nozzles per M2 area Spacing (Centre of nozzles) Peak design flow rate per nozzle (filtering) Slot width (at the head) Stem diameter (internal) Stem projection below floor Depth of Air Cushion below floor Details of piped under drain system (if offered) . Details of floor fixing Details of floor supports Details of floor seals Design pressure of filter floor (maximum) Nos. mm M/hour mm mm mm mm

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme i) Downwards ii) Upwards 5.

Head Loss In Filters

349 kg/m2 kg/m2

Maximum design rate of filtration i) Through the fine filtering media at the commencement of a filter run ii) Through the fine filtering media immediately before washing iii) Through the filter floor and coarser supports media (if any) iv) Through the filter ports, exit pipe work v) Flow restriction value for head loss of 6.

Outlet Weirs

M

M

M

M M

Description Sill level

Head over weir at Maximum flow rate used in (6) above

mm mm

7.

Cleaning Details

Filter head loss

Contractors recommended wash procedure Wash/cleaning cycle briefly state operating and times

M

Total cycle time Design water temperature

Flow rates with full details of the various combinations

minutes

o

C

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

Air water rate

350

Wash water rate

Air scour period

Optimum filter run Sand expansions achieved

At design temperature of DC At maximum temperature of DC At minimum temperature of DC Volume of water lost per day due to cleansing

% % %

Operations at the design rate of flow Source of media 8.

Channels, Pipe work, Ports & Control Valves (Maximum design figures) Velocity in influent channel Top water level in influent channel

M3

M/sec. M mm M/sec. mm

Filter inlet control valve Filter inlet velocity Filtrate outlet control valve Filtrate outlet velocity Wash water inlet control

Wash water outlet velocity Air inlet control valve Air inlet velocity Waste Water outlet control valve

M/sec. mm M/sec. mm M/sec. mm

Waste water outlet velocity 9.

Description Of Air Pipe Work

mm/sec.

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

CHEMICAL PLANT

351

PERFORMANCE SCHEDULE 1.5

1.

Chlorine

Drum Manufacturer Dimensions of drums Net capacity each drum (liquid chlorine) Change over paned (manufacturer/model)

Chlorinators

Manufacturer Model No. No. of Chlorinators - operating standby Injector capacities (water) Pressure Flow rate 2

Aluminum Sulphate

bars

i) Saturation tanks Number, dimensions Effective capacity (each) Protection to be provided

Description of draw off/gravel size, pipe size, etc.

Draw off Rate ii) Dosing Lines

Contractor

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Tender Document for Bhokar Water Supply Scheme Number Material Diameter iii) Hydraulic Levels Level of stock tank outlet Level of constant head solution feed tank Head loos from freed tank to dosing point a) at 1 % solution strength b) at 2 % solution strength c) at 5 % solution strength 3.

Hydrated Lime

352

M M M

% purity used for design purpose Maximum anticipated dose rate i) Stock tank capacity: Gross Effective Protection provided Mixer manufacture Power dissipated Motor power rating No. of tanks Details of mixer (Manufacturer, motor power, drivers, gearbox, etc.) ii) Feed tanks

% Mg/L m3 m3

Contractor

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Tender Document for Bhokar Water Supply Scheme No. of Tanks Dimensions Capacity Protection Levels iii) Feed rate meters Manufacturer Type/Model No. Maximum design flow rate Head loss at maximum flow iv) Dosing lines Number Diameter Material v) Hydraulic levels a) Level of stock tank outlet b) Level of solution feed tank c) Head loss from feed tank dosing point 4.

Wash Water Tank Over Chemical House

353

m3

mm

M M M

Capacity Dimensions Top Water level Bottom level M M

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

\VASHWATER PUMPM (FOR WASH WATER TANK)

354

PERFORMANCE SCHEDULE 2.1

Item

Details Required

Design Duty

1 2 3 4 5. 6. 7. 8. 9. 10. 11. 12

Quantity of water required to wash on filter Design discharge Static head Friction head

Total head against pump Size of pumps Suction/Delivery

liters LPS M M M mm kw kw % % kw L/sec.

Calculated Power at Pump coupling Rated Power of Motors to be installed Guaranteed efficiency of pumps of duty point Guaranteed efficiency of motors pump at duty point Power Input at pump duty point

Maximum discharge of pumps at the top water tank level in the channel

13. 14. 15 16. 17. 18.

Power required at top water level Pump speed . Weight of heaviest piece of machinery

Velocity through eve of impeller

kw rpm. kg M/sec. M

N.P.S.H. required Material of casing

Contractor

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Tender Document for Bhokar Water Supply Scheme Item Details Requited Design Duty

355

19. 20. 21. 22. 23. 24. 25. 26. 27. 28.

Material of casing Material of shaft Material of gland sleeve Material of neck bushes Material of neck rings Type of thrust bearing Type of motor coupling Guaranteed motor efficiency at full load Guaranteed motor efficiency at 1/4 load Guaranteed motor efficiency at 1/2 load % % %

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

AIR SCOUR BLOWERS

356

PERFORMANCE SCHEDULE 2.2

Item

Details Requited

Design Duty

1. 2. 3. 4. 5 6. 7. 8. 9 10 .

Design capacity (free air delivered) Discharge pressure Size of blower section branch Calculated power at blower coupling Power absorbed in transmission Rated power of motors to be installed Guaranteed efficiency of blowers Guaranteed efficiency of motors at blower duty point Guaranteed input at lower duty point Blower speed

m3/min. Kglcm2 mm kw kw kw % % kw rpm

Contractor

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Tender Document for Bhokar Water Supply Scheme

PARTICULARS OF CLARIFLOCCULATOR

357

PERFORMANCE SCHEDULE 2.3

Item

Details Required

Design Duty .

1.

Speed of clarifier drive motor Gearbox ratio Output drive wheel Peripheral speed of clarifier Calculated power at drive wheel Power of motor to be installed Material of bridge Width of bride Depth of bridge structure Material of scraper blades Maximum deflection of bridge at 500 kg/m2 loading Maximum lateral deflection bridge Material of wheels No. and size of wheels dia x width Material/ thickness of weir plate/ launder Type of centre bearing Type of slip ring collector Lubrication of centre bearing Speed of flocculator drive motor

rpm

2 3 4. 5 6 7. 8 9 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.

rpm M/min kw kw

mm mm

mm mm

mm

rpm

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme Item Details Required Design Duty

358

20. 21. 22. 23. 24. 25. 26.

Gearbox ratio Output drive speed Peripheral speed of flocculator paddles Calculated power are gearbox output shaft Power of motor to be installed Material of flocculator Diameter of flocculator M rpm M/min kw kw

Contractor

No. of Corrections

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Tender Document for Bhokar Water Supply Scheme

CHEMICAL TRANSFER PUMPS

359

PERFORMANCE SCHEDULE 2.4

Item

Details Requited 2

Design Duty

1. 2. 3. 4. 5. 6. 7. 8 9. 10. 11. 12. 13. 14. 15.

Design discharge Head on pumps Size of pump suction/delivery Rated Motor Power Efficiency of pump at duty Power Input Pump speed N.P.S.H. requited Material of Impeller Material of casing Material of shaft Material of sleeve Details of bearing Type of Motor coupling Motor efficiency

LPS M mm kw % kw rpm M

%

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

360

CHLORINATION EQUIPMENT

PERFORMANCE SCHEDULE 2.5

Item

Details Required

Design Duty

1. 2

_ 3 4.

Type Description/Capacity Chlorinator design dosing rate Chlorinator maximum dosing rate Chlorinator minimum dosing rate Dose rate accuracy Dimension of panel Weight of panel Injector Type/Description Size inlet/outlet Motive water quantity Motive water pressure

Post chlorination residual recorder Type/Description

kg/hr mg/lit. mg/lit. mg/lit. %

w x d x h mm

5. 6. 7. 8. 9. 10. 11. 12.

kg

mm lit/sec. kg/cm_

13. 14. 15. 16.

Sample accuracy Range Dimensions of panel Weight of panel

% - mg/ 1 Wxdxh mm kg

Contractor

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Tender Document for Bhokar Water Supply Scheme

ELECTRICAL EQUIPMENT A) 414 V Motors PERFORMANCE SCHEDULE 2.6

361

1. 2. 3 4. 5. 6. 7 8. 9. 10

Make and type Type of frame size Degree of protection Rated output Load cycle Full load speed No load current Minimum voltage required under starting condition Starting time with load at minimum starting voltage Number of starts permissible a) b) c) Under hod condition Under cold condition Per hour after thermal equilibrium kw Continuous rpm.

A

v Sec.

B) A.

415 Volt Switchgear & Motor Control Center Panel

1. 2.

Manufactured by Clearances a) b) Between phases Between live parts and earth

3. 4.

Thickness of sheet/insulating barriers Draw not space required in front mm

Contractor

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Tender Document for Bhokar Water Supply Scheme C) 1. 2 3 4.

Molded Case Circuit Breaker & Air Circuit Breaker

362

Isolating Make and type Switches Manufacturer's type designation Rated voltage Rated current a) Nominal 5. 6. 7. 8. 9. Operation handle (dolly) in the door provided Peak current rating Making capacity (peak value) Type of closing mechanism

No of operations the circuit breaker is capable of performing washout inspection replacement of contacts or other parts at :

Yes/No KA KA

a) b)

D)

100 % rated current 100 % rated interrupting capacity

1. 2.

3 E)

Make Type Rated Voltage

Fuses V

1. 2 3 4.

Make Type Standard applicable Rated voltage

V

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

363

5, 6.

Category of duty Rupturing capacity (Prospective current)

D.O.L. Starters

KA

1. 2. 3 4.

Make Type Rated Voltage

Make, rating and duty class of Auxiliary Contractor

5. 6. 7.

Coil Voltage

Applicable Standard

Over Current Relay a) b) c) Make Type Range

Star Delta

1.

Make No. of Taping and percentage

3

Rated, Rating and Duty Class of Main Contractor Rated Voltage

5. 6. 7 8.

Make, Rating and Duty Class of Aux. Contractor Coil Voltage Time Make and Range

Applicable Standards

Contractor

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Tender Document for Bhokar Water Supply Scheme 9.

364

Over-current Relay, under voltage release and Single phasing preventor

a) b) c)

G) A.

Make Type Range

Indicating Instruments Voltmeter, Frequency Meter

1.

2

Make Type

Applicable standards Accuracy class

3. 4. 5. 6.

H)

Case size

Angle of deflection Ammeter

1. 2. 3. 4. 5. 6.

I)

Make Type

Applicable standard Accuracy class

Case size

Angle of deflection Details Of Auto Transformer Starter

1. 2.

Make Type

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

365

Details of tapping points

J) Power Factor Improvement Capacitor

1.

2.

Make Reference specification Type Rated capacity Rated continuous voltage Type of discharge service Dielectric material Loss including discharge resistor loss HRC fuse, rating W/KVAR

A

3. 4 5. 6. 7 8 9

KVAR

V

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

366

MANUFACTURERS EQUIPMENTS

OF

MAIN

PERFORMANCE SCHEDULE 3.1

1.

Pumps a) Wash water b) Chemical transfer

2. 3. 4. 5. 6. 7 8 9. 10. 11. 12. ] 3. 14. 15. 16. 17. 18. 19. 20 21.

Ventilation Motors Air Conditioning Equipment

Pipe work Sluice valve Reflux valves

Air Release valves

Steel work Lifting Equipment Paints Cable Butterfly valves

Air Scour blowers Air Scour blower filters Air compressors

Motors Control panel C.I. Pipes PVCIHDPE pipes Crane Instrumentation

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Tender Document for Bhokar Water Supply Scheme

MANUFACTURERS OF CHLORINATION EQUIPMENT

368

PERFORMANCE SCHEDULE 3.2

1. 2. 3. 4. 5. 6. 7 8. 9. 10. 11. 12. 13. 14.

Chlorinators Chlorine Residual Recorders Chlorine Gas Leak Detectors Pipe work Valves Control Panel Motor Starter Units Lifting Equipment Low Rate Ventilation Equipment High Rate Ventilation Equipment Motive Water Pumps Pumps Motors Safety Equipment Chlorine Drums

Contractor

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Tender Document for Bhokar Water Supply Scheme

369

STATEMENT NO. VI UNDERTAKING AND GUARANTEE

I / We guarantee that :1) I / We will replace, repair and adjust free of all charges, to the employer, any part of the work which fails to comply with the specifications or amendment to such specifications as referred to in our specifications attached to tender, fair wear and tear expected until the completion and for period of 12 months from the date of Acceptance Certificate issued under respective clause of Conditions of Contract. All the work will be reliable All the work will be of a type which has been proved in service, to be suitable for the duty required by the specifications and will be manufactured and tested in accordance with the appropriate standard specifications approved by the Engineer-In-Charge. I / We accept and abide by the clause relating to quality and guarantee of work for complete defect liability of twelve month from the date of submission.

2) 3)

4)

Contractor's Signature.

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Tender Document for Bhokar Water Supply Scheme

370

STATEMENT NO. VII DECLARATION

1) I / We hereby declare that I / We have made my self thoroughly conversant with the local conditions regarding all materials such as stones, murum, sand, availability of water etc. and labour, on which I have based my rates for this work. The specifications and requirements of lead for this work have been carefully studies and understood by me before submitting the tender. I undertake to use only the best material, to be approved by the Engineer-InCharge of the work and also abide by his decision. I / We hereby undertake to pay the labour engaged on the work as per Minimum Wages Act 1984 applicable to the zone concerned. I / We hereby undertake to supply the material / equipment only as per makes mentioned in the tender wherever such makes are specified.

2)

3)

Contractor's Signature.

Contractor

No. of Corrections

Chief Officer

Tender Document for Bhokar Water Supply Scheme

371

MODEL FORM OF BANK GUARANTEE BOND 1. This deed of Guarantee is made on the ................... by having his head office at ....... ........... ...................... ...................... hereinafter called the said Contractor(s) from the demand under the terms and conditions of Agreement dates .. ............................ made between ........... ...................... ...................... ................ and ........................... ........... ...................... ...................... ..................... for ...... ...................... ...................... ...................... (hereinafter called `the

Agreement') of additional security deposit for the due fulfillment by the said Contractor of the terms and conditions contained in the said Agreement on

production of a Bank Guarantee for Rs. .................. ............... (Rs. ........................... ........... ...................... ...................... ...................... only) We, request of ................... ........... ...................... ...................... ...................... ...................... (contractor) do

hereby undertake to pay to the Municipal Council, Bhokar hereinafter referred to as MC, an amount not exceeding Rs. ... ...................... ...................... against any loss or damage caused to or suffered by the MC by reasons of any breach by the said Contractor of any of the terms or conditions contained in the said Agreement. 2. We, .... ...................... ...................... ...................... (indicate the name of bank) do hereby undertake to pay the amount due and payable under this guarantee without any demur, merely on a demand from the MC stating that the amount claimed is due by way of loss or damage caused to or would be caused to or suffered by the MC by reason of breach by the said Contractor (s) of any of the terms of conditions contained in the said Agreement or any reason of the Contract(s) failure to perform the said agreement. Any such demand made on the bank shall be conclusive as regards the amount due and payable under this guarantee shall be restricted to an amount not exceeding Rs. ................ 3. We undertake to pay to the MC any money so demanded not with standing any dispute or dispute raised by the Contractor(s)/Supplier (s) in any suit or proceeding pending before any count or tribunal retaining there to our liability under this present being absolute and unequivocal. The payment so made by us under this pond shall be valid discharge of our liability for payment thereunder and the Contractor(s) / Supplier (s) shall have no claim against us for making such payment. 4. We,..... ...................... ...................... ...................... (indicate the name of Bank) further agree that the guarantee herein contained shall remain in full force and effect during the period that would be taken for the performance of the said Agreement and that it shall continue to be forcible till all the dues of the MC under or by virtue of the said Agreement have been fully paid and its claims satisfied or discharged or till .......

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........... of MC certifies the said Contractor(s) and accordingly discharges this guarantee. Unless a demand or claim under this guarantee is made on us in writing on or before the ........ ...................... ...................... ...................... we discharged from all liability under this guarantee thereafter. 5. We, .... ...................... ...................... ...................... (indicate the name of Bank) further agree with the MC that MC shall have the fullest liberty without our consent and without affecting in any manner our obligations here under to vary any of the terms and conditions of the said Agreement or to extend time of performance by the said Contractor from time to time or postpone for any time or from time to time any of the powers exercisable by the MC against the said Contractor(s), and to forth or enforce any of the terms and conditions relating to the said Agreement, or extension being granted to the said Contractor(s) or for any forbearance act or commission on the part of the MC or any indulgence by the MC to the said Contractor or by any such matter or thing whatever which under the law relating to surety would, but for this provision, have effect of so relieving us. 6. The guarantee will not be discharged due to the change in the constitution of the Bank or the ................ ...................... change Suppliers. 7. We,..... ...................... ...................... ...................... (indicate the name of Bank) lastly undertake not to revoke this guarantee during its currency except with the previous consent of the MC in writing. Dated the ....... ...................... ............ day of ..................... .................. 19 for (indicate the name of bank) in constitution of the Contractor/ shall be

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Drawings

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Information

E-tender Document

388 pages

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