Drilling Lowering and Installation of Hand Pump

Transportation of suitable truck / tractor mounted where only road available DTH & ODEX / Percussion Calyx / RC Drilling with portable rigs alongwith necessary accessories etc to the site of work and erection of portable rig including leveling etc. complete in all respects as per directions of Engineer-in-charge.

Drilling bores of 152mm Dia as per IS: 2800-1979 using ODEX (TUBEX) attachment required drilling in collapsible strata conglomerate, boulders, pebbles, gravels, silt, clay etc. including cost of attachments, consumable stores, bits, water, POL, etc. complete with system of simultaneous lowering of 125mm nominal bore 50mm thick MSERW fincut casing pipe which will be welded together using 2.5mm or 3.25mm dia Advani/Oerlikon electrodes with one plain end and the other end chamfered to 50 degree removing paint on the area to be welded, inclusive of the cost biodegradable and non-toxic foam flush etc. complete in all respects as per directions of Enigneer In Charge. MSERW fincut asing pipe, casing shoe and bit tube as per requirement of ODEX to be paid separately.

Supply and lowering of IS marked 125mm dia nominal bore, 5.00 mm thick finuct MSERW casing pipes as per IS 4270-2001 and requirement of ODEX attachement complete in all respects as per direction of the Engineer-in-charge.

Providing and Fixing suitable casing shoe and bit as requirement of ODEX attachement complete in all respects as per direction of the Engineer-in-charge.

Collection and preservation of soil samples in polythene bags complete in all respects as per direction of Engineer-in-charge.

Development of borewell and yield testing with Air compressor through V-notch and disinfection etc. complete in all respects as per IS-2800-1979 and as per direction of the direction of Engineer-in-charge.