WBPHED/EE/MD/NIeT_06 of 2025-2026, Sl.No.14

Supplying, laying, fiting, fixing and jointing of UPVC pipes conforming to IS:4985-2000 with latest revision and amendments, if any, with necessary UPVC/CI specials, CIDF sluice valves, as per relevant I.S. specification including labour charges for earth work in excavation in any kind of soil including mixed soil with boulder ,road sub-grade and its flanks but excluding moorum and laterite or sand stonehard arock including cutting of brick payment without damaging the existing telephone/electrical cable line etc.(in case of damage of any type of cable line during excavation, necessary damaged charges as applicable by the respaective authority will be borne by the agency in his own cost. Loading, unloading, carrying of pipes, specials, valves from the local store to work site and lowering laying of pipes specials valves carefully in trenches maintaining proper levels and alignment ,jointing the pipe and specials including supplying of good quality/approved brand solvent cement (as per IS:14182-1994 including cost of all fabricated PVC fitting i.e. tees,bend, reducers, adopter etc.as per IS:101-1988 and making flange joints including supplying required quantity of nuts, bolts and rubber insertion (CIDF sluice valves will be supplied by the department free of cost) as required at site by adopting suitable method so as to facilate the maintenance of pipe line locally as per conventional method including back filling the trenches with good earth obtained from excavation of trenches including consolidation with watering in layer not exceeding 150mm thk. with maintaining an average depth of cushion of 1.10mtr. from the top of pipe line including making interconnection with distribution pipes etc. all complete as per drawing direction and satisfaction of the E.I.C.

N.B. i) Manufacturer’s test certificate for UPVC pipe & specials to be produced before laying of pipe line. ii) 3rd party inspection of UPVC pipe & specials to be done by CEPET or (India) SGS/NTH Kolkata or as per direction of EIC as per approved vender list. iii) No part payment at any stage on account of supply of materials shall be entertained. iv) Payment will be made on actual consumption of materials. v) UPVC pipes for the works to be supplied as per approved vendor list and as per direction & satisfaction of EIC. No pipes will be allowed beyond recommendated vendor list. vi) Submission of drawing of pipe line with statement of materials consumed between node to node points against each R.A. & final bill.if so. vii) Any deviation from required clear cover of 1.10mtr.due to site adverse condition, prior permission is to be obtained from EIC and payment for such work will be made on prorate basis over the rate of entire item. viii) All pipe connection shall be completed in all respect and as per directionof EIC. Decision of EIC in this respect is final & binding. In case of any deviation/or any left out pipe connections an amount of Rs.10,000.00 for each pipe connection will be realized/recovered from the bill. ix) No payment will be made without hydraulic test of the pipe line either part or full

(A) Pressure Rating : Class - III (ii) Laying of pipe line including cost of pipe & fittings /specials but excluding cost of valves.

a) 90 mm(OD)

Filling the pipe line with water, testing hydraulically as per I.S 3114-1965 (Article-6) in section of a length not exceeding 500mtr. for head of pressure as per specification including supplying installing and fixing all equipments such as diesel pump set, blank flange, pressure gauge, valve, pressure pump and all other tools and plants including drilling topping and plugging of necessary holes to pipes, blocking ends providing temporary thrust block and subsequent blocking of holes and other jointing materials and dismantling and removal of the same including disposal of water etc. all complete as per specification and direction of EIC. The rate is inclusive of cost of requisite water to be arranged by the contractor (Recovery rate of water @ Rs.10.00/m3, if contractor used water from deptt. source).

a) 90 mm(OD)

Cleaning thoroughly the inner surface of pipe line including specials and valves by flushing with water and subsequently disinfection of the same pipe line by flushing again with water containing bleaching powder resulting in residual chlorine not less than 15mg/ltrs. after 24hrs. of such filling including laboratory testing of water samples obtain from the disinfested pipe line and disposal of water from the pipe line after completion of the work. The rates including of cost of requisite water to be arranged by the contractor) (The rate of water @Rs. 10/m3 may be recovered, if the contractor used water from deptt. source).

a) 90 mm dia

BOUNDARY WALL

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.