Drilling of 150/125/100.mm Nominal Diameter Boreholes for Hand Pump/solar bore well/Solar DFU/RO and Installation of India Mark-II/ Extra Deep Well Hand Pumps complete with or without material and construction of platform in District Banswara

Construction of tube well after completion of drilling by rotary /percussion method & up to 100 mtr. depth in all type of rocks by DTH system as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work shall be deemed completed only after obtaining sand free water. The bore well should have a throughout nominal size bore beyond casing pipe.

Nominal bore 150 mm dia.

Add 15% extra on above item (Item No 2.3.1 to 2.3.3) 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.

Add 30% extra on above item (Item No 2.3.1 to 2.3.3) for drilling depth beyond 200 mtr and from ground level, rate shall be applicable for only extra depth beyond 200 mtr .

Add 15% extra on above item (Item No 2.3.1 to 2.3.3) for drilling, where strata is collapsible and lowering of casing pipe is required . The work includes lowering of casing pipe, but excluding the cost of casing pipe. The rate shall be applicable for stretch of collapsible strata only.

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 up to 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 dia.

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.

Add 30% extra on above item (Item No 2.4.1 to 2.4.2) for drilling depth beyond 200 mtr and from ground level, rate shall be applicable for only extra depth beyond 200 mtr .

Add 15% extra on above item (Item No 2.4.1 to 2.4.4) for drilling, where strata is collapsible and lowering of casing pipe is required . The work includes lowering of casing pipe, but excluding the cost of casing pipe. The rate shall be applicable for stretch of collapsible strata only.

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)

Labour charges 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 of 4.8 mm thickness

150 mm dia nominal bore of 4.8 mm thickness

Supply & Fixing tube well cover of MS sheet 8mm thick at top & 5mm thick 100mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45cm long & two GI flanges at both ends in 80mm sizes passing through a hole in the centre of MS sheet. A 25 mm socket with end plug shall also be welded over top plate. A GI nipple having outside thread of size 1/2" (for installation pressure gauge) shall be provided & welded with 80mm GI nipple near top plate nipple shall be provided with end plug.

125 mm dia

150 mm dia

S&F tube well cover of MS sheet (6mmthick) with nuts & bolts complete for casing size 200mm dia.

Supply & Fixing M S clamp set of 50x6 mm flat from iron with nuts and bolts etc. for holding the riser pipe assembly of submersible pump set.

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 up to 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 100 mm dia.

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

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.

Supply of ERW M.S. black casing pipe ISI marked {IS:1239(Part-1:2004)} medium of following sizes at site of work.

100 mm dia NB (Thickness of pipe 4.5 mm & mass of tube 12.50 Kg/m)

125 mm dia NB( Thickness of pipe 4.8 mm & mass of tube 16.40 Kg/m)

Labour charges 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.

100 mm dia nominal bore

125 mm dia nominal bore

Supply & installation of GI pipe 32 mm medium class “B” with pipe sockets (heavy duty).

Supply and installation of ISI marked India Mark II Hand pump set complete with cylinder & 15 connecting rods.

Supply and installation of ISI mark connecting rod as per departmental specifications. of 3 meter length.

Installation of India Mark II/III E.D. I & II hand pump set complete on existing platform.

Supply and installation of ISI Marked India Mark II Hand pump set Extra-Deep (EDW) complete with cylinder and connecting rods.

EDWHP + 20 Connecting rod.

EDWHP + 23 Connecting rod + 1 Weight.

EDWHP + 26 Connecting rod + 2 Weight.

EDWHP + 30 Connecting rod + 3 Weight.

Construction of 185 cm. dia platform as per approved design & drawing of UNICEF.

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