PROVN OF BORE WELL AND CONNECTED WORKS AT BERTHUMA FILTRATION PLANT OF GE SAUGOR

Amount

Mobilisation of accessories/tools/plants/equipment as per IS 2800: 2019 for construction of borewell of 200 mm dia borehole by any of the methods mentioned in IS 2800: 2019 (cable tool, hand boring, direct circulation rotary, reverse circulation rotary, dual rotary) or any other methods and as decided by the Engineer-in-Charge in any kind of soil strata including hard stone/boulder with all minor accessories at site complete all as specified and as directed. Note: The quoted rate shall be inclusive of shifting the accessories/tools/plants/equipment from one site to other for subsequent boring.

Drilling bore hole of 200 mm dia by any of the methods mentioned in IS 2800: 2019 (cable tool, hand boring, direct circulation rotary, reverse circulation rotary, dual rotary) or any other methods and as decided by the Engineer-in-Charge in any kind of soil strata including hard stone/boulder upto 60 metre depth below ground level, including compound/ powder like valmite, bentonite solution, local silty clay etc. to be required as per the site condition including collecting samples from different strata, preparing and submitting strata chart/ bore log/ lithological log all complete all as specified and as directed.

Drilling bore hole of 200 mm dia by any of the methods mentioned in IS 2800: 2019 (cable tool, hand boring, direct circulation rotary, reverse circulation rotary, dual rotary) or any other methods and as decided by the Engineer-in-Charge in any kind of soil strata including hard stone/boulder upto 120 metre depth and beyond 60 m depth below ground level, including compound/ powder like valmite, bentonite solution, local silty clay etc. to be required as per the site condition including collecting samples from different strata, preparing and submitting strata chart/ bore log/ lithological log all complete all as specified and as directed.

Drilling bore hole of 200 mm dia by any of the methods mentioned in IS 2800: 2019 (cable tool, hand boring, direct circulation rotary, reverse circulation rotary, dual rotary) or any other methods and as decided by the Engineer-in-Charge in any kind of soil strata including hard stone/boulder upto 180 metre depth and beyond 120 m depth below ground level, including compound/ powder like valmite, bentonite solution, local silty clay etc. to be required as per the site condition including collecting samples from different strata, preparing and submitting strata chart/ bore log/ lithological log all complete all as specified and as directed.

Drilling bore hole of 200 mm dia by any of the methods mentioned in IS 2800: 2019 (cable tool, hand boring, direct circulation rotary, reverse circulation rotary, dual rotary) or any other methods and as decided by the Engineer-in-Charge in any kind of soil strata including hard stone/boulder upto 240 metre depth and beyond 180 m depth below ground level, including compound/ powder like valmite, bentonite solution, local silty clay etc. to be required as per the site condition including collecting samples from different strata, preparing and submitting strata chart/ bore log/ lithological log all complete all as specified and as directed.

Supplying, assembling, jointing and lowering steel casing pipe for water wells, plain ended, 150 mm nominal bore of pipe, 5 mm wall thickness, ERW (Electric Resistance Welded) type, Fe 450 grade of steel, externally coated with bituminous solution conforming to IS-4270-2001 and fixing in position in different depth as directed, butt welded complete all as specified and as directed.

Supplying, assembling, jointing and lowering plain slotted pipe, type A, screen made of low carbon galvanized (LCG) steel, 150 mm nominal size, 6 mm wall thickness, 1 mm slot openings conforming to IS-8110: 2019 and fixing in position in different depth as directed, butt welded complete all as specified and as directed.

S & F clamp for housing/ casing pipe, made of flat iron of hot rolled medium and high tensile structural steel of grade E 250 quality C conforming to IS 2062: 2011 and as per IS 2800: 2019 including necessary bolts & nuts of required size complete all as specified and as directed.

S & F well cap to the top of bore well, made of flat iron of hot rolled medium and high tensile structural steel of grade E 250 quality C conforming to IS 2062: 2011 and as per IS 2800: 2019 including necessary bolts & nuts of required size complete all as specified and as directed.

S & F bail plug/ bottom plug with hook, 200 mm size, made of material as per IS 4270: 2001, conforming to IS 2800: 2019 complete all as specified and as directed.

Development of tube well in accordance with IS 2800: 2019 and IS:11189 with compressed air method (open well method), to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed complete all as specified and as directed.

Determining specific capacity and efficiency and carrying out yield test as per IS 2800: 2019 using test pump and determining the yield capacity of bore well, the rate of pumping without lowering the water level below the top boundary of the aquifer, the top of the perforations, the recommended rate of pumping complete all as specified and as directed.

Supplying & laying in trenches 50 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 40 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 25 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supply, installed, test & commissioning of manufacturer's factory assembled and tested electric driven multistage submersible pump set 3 phase, 415 V, capable of delivering at head of 120 metre to 150 metre at minimum discharge capacity of 2.0 litre per second suitable for casing pipe of 150 mm nominal size and column pipe of 50 mm nominal bore complete with non-return valve complete all as specified and as directed.

Supplying and lowering 50 mm nominal bore, heavy class, galvanised iron column pipes as per IS 1239 (Part-2): 2004 in single piece each having length of approximately 3 metres with longscrew (connector) pipes as per IS 1239 (Part 2): 2011 welded at end of column pipe periphery including cutting, threading, loading, unloading, transportation etc complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in hard/ dense soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

S & F submersible cable flat PVC insulation of type C and having PVC sheath of type ST2, flexible copper conductor, FR-LSH, 3 core of size 6 sqmm complete all as specified and as directed.

S & F flanged reflux valve (non-return) of single door, swing check type nominal pressure (PN 1.6) of preferred materials as per IS 5312 (Part 1): 2004, nominal size 50 mm complete all as specified and as directed.

S & F 50 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F 40 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F 25 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

Supply, Installation and testing Starter panel indoor type of sheet thickness 2.0 mm comprising of suitable to housing MCB TPN 63 Amp - 01 No as incommer, DOL starter suitable for Submersible pump set up to 7.5 HP Capacity - 01 No, Complete internal wiring with single phase preventer - 01 No all as specified and directed.

M & L for cement concrete in foundation, filling and mass concrete in M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and as directed.

Carryout Zolocical Survey for the proposed borewell min three locations to fullfill the requirement from authorised agency all as specified and directed.

Carrying out testing of water sample of untreated water for all parameters mentioned in Table 1 to Table 6 of IS 10500: 2012 from any government approved Lab or Engineering College as approved by the GE complete all as specified and as directed.

Disinfection of bore well as per IS 2800: 2019 using 1000 milligrams of powdered chlorine compound per litre of water present in the well, thoroughly mixed in the well by surging with pump, left in the well for at least 6 hours, surged at about 2 hour interval, well to be pumped back into the well for 30 minutes and after that pumped into the waste to ensure elimination of any bacteria, odour etc. complete all as specified and as directed.

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