Name of Work:- Drilling and repairing of 06 nos. bore well all complete fitting at Dakaita rehab site under Rajmahal Area.
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Item Description
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Item Description/ Heading
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Development of tube well in accordance with IS: 2800 (part I) and IS: 11189 to establish maximum rate of usable water yield with out sand content (beyond premissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by \\"V\\" notch method or any other approved method measuring static level & draw down etc. by step draw down method, collecting water sampless & getting tested in approved laboratory, I/C disinfection of tubewell all complete, including hire & labour charges of air compressor, tools & accessories etc. all as per requirement and direction of Engineer-in-charge.
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Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/casing pipe, removable as per requirement, all complete for borewell of: 200mm dia
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Supplying of Nylon rope 20 mm dia.
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Supplying G.I pipes 50 mm dia nominal dia including fittings.
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Lowering and commissioning of 5.0 HP Submersible pump in deep borewell with GI/ CPVC/PVC pipe including all accessories etc. complete inlcuding cost of labour but excluding cost of material and fittings (cost of pump, cable, PVC Pipe, Contol panel, hanging arrangement like wire/rope to be paid separately)
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Supplying of 5.0 HP Submersible pump motor set (three phase 415 volt, 12 stage, speed of pump-2880 rpm) with Glass Noryl Polypropin impeller, stainless steel pump shaft, head-110 metre, discharge-2.5 litres per second. Suction casing-cast iron and of approved make as per direction of EIC.
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Supplying of PVC insulated and PVC sheathed flat submersible cable with copper conductor, 3 core 10 sq.mm as per direction of EIC.
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Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc.External work: 50 mm dia nominal bore
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Providing and fixing gun metal gate valve 50mm.
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