Strengthing of source under LWSS Samtana in Tehsil Barsar Distt. Hamirpur (SH Installation of 200 mm dia Bore well in Makkan Khad near head works of LWSS Samtana)

Amount

Transportation of suitable truck/ tractor mounted DTH /ODEX attachement/ Percussion / Calyx / Rotary drilling tractor rigs along with necessary accessories etc. to the site of work and erection of rig including leveling etc. complete in all respects as per decision of Engineer-in-charge.

Drilling bores of 200 mm dia as per IS 2800: 1979 using percussion/ Calyx/RC/ ODEX method required for drilling in collapsible strata conglomerate, boulders, pebbles, gravels, silt, clay, etc including cost of attachments, extractable casing consumable stores, bits, water, POL gravel pak in annular space etc.complete in all respects as per direction of the Engineer-in-Charge.

Supplying and lowering of IS marked 175 mm dia N.B 6.4 mm thick fincut MSERW casing pipes asper IS 4270-2001 & requirement of ODEX/RC attachment from approved manufactures complete in all respect as per direction of Engineer-in charge

Providing & fixing of 175 mm dia MS bail plug as per IS 2800-1991 with upto date amendments, with all leads & lifts

Collection and preservation of soil samples in polythene bags with in all leads & lifts, complete in all respects as per direction of Engineer-in- Charge

Providing slotting arrangements as per IS 8110/1994-997slot size 1.57x75mm & Lowering of 175 mm dia MS sloted pipe as per IS 4270-2001 with upto date amendments, welded and joints in to bore hole in vertical position including cost of all cutting threding & welding of pipe etc. with in all leads & lifts, complete in all respects as per direction of Engineer-in- Charge

Development of bore well with 1000-CFM air-compressor through V notch as per IS 2800-1979 including transportation of equpment etc, to the site of work complete in all respect for the bore drilled by RC rig, as per direction of Engineer-in-charge

Development/ setablishment of discharges of bore well and yield testing with subribale pump through V notch as per IS 2800-1979 including transportation of equpment etc, to the site of work complete in all respect for the bore drilled by RC ng, as per direction of Engineer-in-Charges

Supply and packing of gravel consisting of hard quatz or other suitable material with an average specific gavity of not less than 2.5, not connecting more than 2% by weight of thin flat of elongated pieces shall be of sub rounded to rounded grains with minimum angular feature of size 2-3.35 mm shall be free form impruities such as shafe, shale, mica, felspar, clay, sand, dirt, loam haematte and organic material as per IS 4097-1967 with upto date ammendements if any around in take of T/Well with minimum thickness of shroud arround screen generally 100 mm to the entire depth of the bore as per IS 2800 (part-1) 1991 with upto date ammendments if any with in all leads and lift complete in all respect as per direction of Engineer-in-Charge

M/S Hari Om Drillers

Gian Chand Contactor

sunandhard