Water Treatment Plant at Dhemaji Polytechnic, Simen Chapori under SOPD-G during the year 2023-24

Amount

INSTALLATION OF WATER TREATMENT PLANT

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in 15: 2800 (part 1). Including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in- charge, upto 90 metre depth below ground level. All types of soil 300 mm dia

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 mild steel screwed and socketed/plain ended casing pipes of required dia, conforming to IS: 4270, of reputed & approved make, including painted with outside surface with two coats of anticorrosive paint of approved brand and manufacture, including required hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge. 100 mm nominal size dia having minimum wall thickness 5.00 mm

Providing and fixing Gil Union in Gil pipe including cutting and threading the pipe and making long screws etc. complete (New work): 50 mm nominal bore

Providing and placing in position filters of 40 mm diameter G. pipe with brass strainer of approved quality

Development of tube well in accordance with IS: 2800 (part 1) and IS: 11189, 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, measuring yield of well by "V" notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, l/c disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall 15 mm nominal dia Pipes

25 mm nominal bore

32 mm nominal dia pipes

40 mm nominal dia pipes

CONSTRUCTION OF FILTER AND RESERVOIR

Earthwork in excavation by mechanical means (Hydraulic excavator)/manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m. including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil.

Dry brick on edge flooring in required pattem with bricks of class designation 7.5 on a bed of 12 mm mud mortar, including filling joints with Jamuna sand, with common burnt clay non-modular bricks.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level 1:3:6 (1 Cement 3 coarse sand (zone-lill) derived from natural sources 6 graded stone aggregate 20 mm nominal size derived from natural sources

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of contering, shuttering, finishing and reinforcement

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth love up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5.3 (1 cement: 1.5 coarse sand (zone-III) derived from natural sources: 3 graded stone aggregate 20 mm nominal size derived from natural sources.

Centering and shuttering including strutting, propping etc and removal of form for Walls (any thickness) including attached pilasters, butteresses. plinth and string courses etc.

Foundations, footings, bases of columns, etc for mass concrete

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more.

15mm cement plaster on rough side of single or half brick wall of mix: 1:4 (1 cement : 4 coarse sand)

DEBASISH PAYENG