Drilling of Bore well etc at IE Wuyan

Boring/ drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800(part 1), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire and running charges of all equipment tools plants and machineries required for the job, all complete as per direction of Engineer-in-charge upto 90 m depth below ground level. All types of soil 300 mm dia Rocky strata including boulders

Supplying, assembling, lowering and fixing in vertical position in bore well, un plasticized PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labor charges, fittings and accessories etc all complete for all depths as per direction 65 mm nominal size dia

Gravel packing in tube well construction in accordance with IS: 4097, including providing gravel fine/medium/coarse in required grading and sizes as per actual requirement all complete as per direction of Engineer

Providing and fixing factory made precast RCC perforated drain covers, having concrete of strength not less than M-25, of size 1000x450x50 mm reinforced with 8 mm dia four nos longitudinal and 9nos cross sectional T.M.T hoop bars, including providing 50 mm dia perforations @ 100 to 125 mm c/c, including providing edge binding with M.S flats of size 50mmx1.6mm complete all as per direction of Engineer-in-charge

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 &labor charges, fitting and accessories, all complete for all depths, as per direction of Engineer-in charge. 150 mm nominal size dia having minimum wall thickness 5.00 mm

Development to tube well in accordance with IS: 2800(part 1) 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 tube well, all complete including required hire &labor charges of air compressor tools & accessories, etc. all, as per 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 bore well of 100 mm dia

Providing and fixing M.S clamp of required dia to the top of casing/ housing pipe of tube well as per IS:2800 (part 1), including necessary bolts & nuts of required size complete 100 mm clamp

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tube well as per IS: 2800 (part 1). 100 mm dia

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.