Drilling, Installation, Testing and commissioning of 01 Nos Borewell at BSF Campus SHQ BSF Bhopal

Drilling of overburden by rock roller/ drag/ button bit to accommodate casing pipe of 15" dia . Including sample collection at every 3m interval and preparation of litho log, measurement of discharged through V-notch at various stages (depth) of drilling.

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.273 mm nominal size dia having minimum wall thickness 5.60 mm

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.273 mm nominal size dia having minimum wall thickness 5.60 mm

Drilling in Gondwana formation by using suitable bit to accommodate 7" casing pipe upto 200m including sample collection at every 3m interval, prepartion of litho log and collection of 3 Nos water sample using standard procedure during ( 02 nos basic analysis and one for heavy metal including Arsenic), measurement of discharge through V-notch at various stages (depth)of drilling.

Reaming using rock roller/ button bit for wells using the bit size not less than 238mm (9-1/2") in wells encountering caving formation at intemmitant depth to accommodate part assembly of 168mm (7 inches) diameter in a well. The part assembly (168mm dia pipe) should be lowered using reverse socket through drill string.

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.168 mm nominal size dia having minimum wall thickness 5.60 mm

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.168 mm nominal size dia having minimum wall thickness 5.6 mm

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: 273 mm dia

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I). 168 mm nominal size dia

Caliper logging, submission of logging graph and report.