Tender For Commissioning And Installation Of New Borewell At Jawahar Navodaya Vidyalaya, Gaya-1 (Bihar) - Sub Head : I Tubewells 2 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 trata, 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. 3 All Type of Soil 4 400mm dia 5 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, beyond 90 metre & upto 150 metre depth below ground level. 6 All Type of Soil 7 400mm dia 8 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. 9 150 mm nominal size dia having minimum wall thickness5.00mm 10 200 mm nominal size dia having minimum wall thickness5.40 mm 11 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. 12 150 mm nominal size dia 13 Gravel packing in tubewell construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in- charge. 14 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. 15 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: 16 200 mm dia 17 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. 18 200 mm clamp 19 Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I). 20 200 mm nominal size dia 21 Supply, installation testing & commissioning of borewell submersible pumping set suitable to operate on 415 volts 3 phase 50 HZ A.C. power supply including water proof joint free cable, motor control panel, 200 mm outer dia uPVC Pipe as per IS : 12818with fittings, clamps etc. complete in all respect as per details given below : 22 Pump Motor shall be Class F Insulation , Pump and Motor shall be IP : 68 Protection Rating , and Motor Efficiency shall be Class IE-3 Efficiency . 23 Pump to be lowered below groundas site Boring/drilling 24 Pump capacity : 15000 litres/hr 25 Head : 250M 26 H.P : 15 ( Approx) 27 Totalof one set Tubewell 28 Provding and fixing heavy duty 65mm G.I. pipe confiming to IS. 1239 upto 150 mm and IS 3589 for dia 200 mm and above with reducers, tees, flanges, elbow, crosses, union etc. and fixing the pipes onwall / ceiling / beam / floor including Clamping/Supporting the same, including painting with 2 coats of synthetic enamel paint as per the site requirement and shall be duly painted with two coats of approved quality synthetic enamel paint & shade over a readymix primer coat complete as required & as per directions of the engineer-in-charge for the following sizes: 29 PANEL(Outdoor Type weather proof, double door with canopy and suitable MS Structure stand duly painted) 30 INCOMER 31 1 No.100 Amp FP MCCB, 25 kA breaking capacity with thermal release and adjustable setting and with rotary handle. 32 Metering & Indication 33 1 set of RYB phase indicating lamps 34 MFM with Communication Facility along with control SP MCB 35 Surge protection device , Type 2, MOV type for 8/20 us wave, 3 Nos phase to neutral, one No neutral to earth ,(minimum 3+1 mode) with minimum discharge capacity 40KA along with necessary fuses. 36 BUS-BAR 37 1 Set of 125A TPN Aluminium Bus Bar with colour coded PVC Sleeves 38 OUTGOINGS 39 3 Nos. 40A TPN MCB 40 3 Nos. 25A DP MCB 41 3 Nos. 20A DP MCB 42 Plumbing Panel 43 NOTE :- All starters shall have ON & OFF push button &suitable rating of contractor and overload relays 44 Supplying,Receiving, fixing, testing & commissioning ofabove described Panel 45 COST OF BORELOGING WORK (Bore logging is the process of recording detailed geological information from boreholes drilled during subsurface investigations. The primary aim is to understand the geological formations, stratigraphy, and hydrological conditions.) 46 COST OF WATER QUALITY TEST ( Water quality testing involves analyzing water samples to determine their physical, chemical, and biological characteristics. )
