Annual Rate Contract for the Work of Drilling of 125 AND 150 mm dia Tube Well for Hand Pumps AND Solar Based Tubewell etc with 2 yrs DLP as per departmental specification AND installation of Hand Pumps complete with assembly AND construction of platf

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a through out bore as per nominal dia of casing pipe.

Nominal bore 125 mm dia.

Add 15% extra on above item for drilling depth beyond 100 mtr, If depth of bore is more than 100 mtr.

Construction of Tube Well up to 100 mtr. depth in all type of rocks by DTH system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications. The work would be completed after obtaining sand free water. The tube well should have a through out bore as per nominal dia of casing pipe. Nominal Bore 150 mm

Add 15% extra on above item (Item No 2.4.1 to 2.4.2) for drilling depth beyond 100 mtr and up to 200 mtr from ground level, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr

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 of ERW M.S. black casing pipe ISI marked (IS: 4270/2001) or amended up to date of following sizes 150 mm dia NB(Thickness of pipe 5.0 mm & mass of tube 20.13 Kg/m)

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 & 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. 150 mm dia

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)

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