Annual Rate Contract for the Work of Drilling of 125 mm dia Tube Well for Hand Pumps as per departmental specification AND installation of Hand Pumps complete with assembly AND construction of platform as per specification AND drawings approved by

Construction of tube well upto 100 meter depth in all type of rock by DTH System & over burden to accommodate casing pipe of following sizes in all type of soils & over burden including lowing of casing pipes (if required) excluding cost of casing pipes, as per IS:2800 Part 1 : 1991 & IS:2800 Part II:1979 (Both amended upto date) and technical specifications. the work woud be completed after obtaining sand free water.The tubewell should have a throughout bore as per nominal dia of casing pipe. Nominal Bore 125 mm dia (BSR Item No. 2.45.2/2023)

Supply of ERW M.S. black casing pipe ISI marked as per IS:1239 (Part I 2004) or amended upto date of 125 mm dia NB (Thickness of pipe 4.8 mm & mass of tube 16.40 Kg/m) (BSR Item No. 2.47.2/2023)

Supply & fixing of tubewell cover of MS Sheet 8 mm thick at top & 5 mm thick 100 mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45 cm long & two GI flanges at both ends in 80 mm sizes passing through a hole in the centre of MS sheet. A 25 mm socket with end plug shall also be welded over to plate. A GI nipple having outside thread of size 1/2" (for installation pressure gauge) shall be provided & welded with 80 mm GI nipple near top plate nipple shall be provided with end plug. 125 mm dia (BSR Item No. 2.23/2023)

Supply & installation of GI pipe 32 mm medium class "B" with pipe sockets (heavy duty) (BSR Item No. 2.50/2023)

Supply & installation of ISI mark II Hand Pump Standard (SDWP) set as per IS 15500:2004 or as amended upto date complete with cylinder & 15 connecting rods (BSR Item No. 2.51/2023)

Supply & installation of ISI mark connecting rod as per departmental specifications. of 3 meter length. (BSR Item No. 2.53/2023)

Construction of 185 CM dia platform as per approved design and drawing of UNICEF (BSR Item No. 2.55/2023)

Labour Charge for making slots on blank pipes made of ERW MS black pipe ISI marked of following sizes, the slotting should be as per IS:8110-1985 (125 mm dia nominal bore) (BSR Item No. 2.49.2/2023)

Installation of India Mark II/III E.D. I & II handpump set complete on existing platform (BSR Item No. 2.54/2023)