Construction of Rain Water Harvesting System Bore well for Building of Canal Colony Danoda Jind under Adampur W/S Division, Hisar

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead up to 50 m and lift up to 1.5 m, as directed by Engineer-in-charge (Filteration tank, sedimentation tank, bore tank)

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m (for pipe)

Demolishing cement concrete 1:2:4 manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge (for pipe line)

Providing and laying of Conglomerate floor 25 mm thick cement concrete 1:2:4 on 100 mm cement concrete 1:8:16 and 100 mm sand or stone filling (for Tank and collection chamber)

Brick work with common burnt clay modular bricks of class designation 7.5 in foundation and plinth in Cement mortar 1:4 (1 cement : 4 coarse sand) (for top of base & collection chambers)

12 mm cement plaster finished with a floating coat of neat cement of mix (for tank walls and collection chambers)

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level (for tank covers and collection chambers covers)

Centering and shuttering including strutting, propping etc. and removal of form for Suspended floors, roofs, landings, balconies and access platform (for tank covers)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level. 89 kg per cum (for tank covers and collection chambers)

150 mm dia PVC pipe laid (for collection chambers to sedimentation tank)

100 mm dia PVC pipe from roof top to collection chamber

PVC Bend 100 dia roof top to pipe

Stringing out A.C./P.V.C pipes and specials casting along trenches and laying the same in trenches, to correct alignment and gradients including cartage from divisional stores or nearest railway station to site of works and return of pieces of pipes to stores 150 mm internal diameter of pipe line laid complete

PVC Bend 150 dia for intake of 150 mm pipe

Constructing brick masonry inspection Chamber sizes as given below up to 0.60 metre average depth in cement mortar 1:5 lime concrete with 40 per cent lime mortar 2:3 in foundation cement concrete 1:2:4 benching 12mm thick cement plaster 1:2 with a floating coat of 1 mm thick of neat cement R.C.C. 1:2:4 slab 100 mm thick/cement concrete topping, 50mm thick with 455mmx455mm / 455mm x610mm inside light duty C.I. inspection chamber cover and frame weight as per I.S.I. specification painted with 3 coats of black bitumastic superior paint complete as per standard design (Size 450 mm X450 mm inside (with 455 mm x 455 mm cover and frame light duty single seal weighing 20 kg with C.C. topping)

Extra for every 0.30 metre depth of Inspection chamber 450 mm x 450 mm inside

Providing and placing in horizontal layers filtering media screened washed and cleaned as described below (Bajri (coursed) screened and washed graded from 10mm (from Ghaggar or approved equivalent quarry)

Providing and placing in horizontal layers filtering media screened washed and cleaned as described below (Bajri (coursed) screened and washed graded from 20 mm to 25 mm (from Ghaggar or approved equivalent quarry)

Broken stone, screened, washed and graded from 50 mm to 75 mm (from Ghaggar or approved equivalent quarry)

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), 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, beyond 90 metre & up to 150 metre depth below ground level. (300mm dia)

Supplying, assembling, lowering and fixing in vertical position in bore well, Unplasticised PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer -in-charge. (200mm dia)

Supplying, assembling, lowering and fixing in vertical position in bore well Unplasticised PVC medium well screen (RMS) pipes with ribs, conforming to IS: 12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge (200mm dia)

Gravel packing in tube well construction in accordance with IS: 4097, including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge.

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tube well as per IS:2800 (part I) (200 mm for top and bottom)

Development of tube well in accordance with IS : 2800 (part I) 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, i/c disinfection of tube well, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Pawan Kumar Contractor

gharwal const. co.

VIRENDER KUMAR CONTRACTOR