PROVISION OF BORE WELL (NEAR ZONE-I) FOR DAY TO DAY MAINTENANCE OF ARBORICULTURE ASSETS AT TBRL RANGE, RAMGARH

Amount

CIVIL WORKS

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, upto 90 metre depth below ground level. a) All types of soil i) 350mm dia

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 mild steel screwed and socketed/ plain ended casing pipes of required dia, conforming to IS: 4270, of reputed & approved make, including painted with outside surface with two coats of anticorrosive paint of approved brand and manufacture, including required hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge. a) 150 mm nominal size dia

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 plain slotted (having slot of size 1.6/3.2 mm) mild steel threaded and socketed/ plain bevel ended pipe (type A) of required dia, conforming to IS: 8110, of reputed and approved make, having wall thickness not less than 5.40 mm, including painted with outside surface with two coats of anticorrosive bitumestic paint of approved brand and manufacture, including hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer -in-charge. a) 150 mm nominal size dia

Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/medium/ coarse, in required grading & sizes as per actrual requirement, all complete as per direction of Engineer-in-charge

Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible 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 samples & 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.

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: a) 150 mm dia

Providing and fixing M.S. clamp of required dia to the top of casing/ housing pipe of tubewell as per IS: 2800 (part I), including necessary bolts & nuts of required size complete. A) 150 mm clamp

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I). A) 150 mm dia

Providing, laying and fixing following dia G.I. pipe (medium class) in ground complete with G.I. fittings including trenching (75 cm deep) and re-filling etc. as required a) 80mm dia GI pipe

BUTTERFLY VALVE (MANUAL) with CI body SS disc nitrile sheet & O - ring & PN 16 pressure rating as specified. A) 80 NB GM Gate Valve

NON - RETURN VALVE with dual plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as specified. A) 80 mm dia.

Supply, installation, testing and commissioning of submersible pump (KSB make: 12 HP) with motor of cap 10 to 12 cum per hour against 90m head etc. complete

Supply, Erection of DOL starter outdoor type with all controls suitable for 15HP motor along with four pole MCB and all controls SPP and water level controller etc. complete

Supply and fixing 6mm dia GI rope for submersible pump inside the borewell.

Supply and fixing of 4core x 10sqmm water proof PVC insulated copper flat submersible cable. Make Finolex or Equivalent.