Estimate for maintenance of artificial recharge structure at Doad rest house.

Amount

Earth work of silt clearance of channels and drains:- Basket work with combined lead upto 7.50 metres undressed.

Labour Required for removing and refiling of 2-6mm gravel from the filtration chambers and cleaning chamber after replacing the old gravel.

Supply of 2-6 mm gravel free from dust in filtration / clearing chambers as per design specification and instruction of engineer in charge from approved quarry.

Labour Required for removing and refiling of 6-50mm gravel from the filtration chambers and cleaning chamber after washing

Supply of 6-50 mm gravel free from dust in filtration / clearing chambers as per design specification and instruction of engineer in charge from approved quarry.

Labour required For Washing / Cleaning of 6-50mm gravels from Chambers

Cleaning chocked Pipe from outlet to distribution chamber to 3 no filtration chamber and 1 no clearing chamber with air compressor of required capacity as directed by engineer in charge including cost of tools,appliances & consumable to the satisfaction of Engineer in charge . Capacity of air compressor 300 cfm at 250 PSI

Making dewatering Arrangements by pumping Set 4" x 4 "( tractor driven)

Excavation of Soil using Hyraulic Excavator and hydraulic Tractor Trolly with disposal I/C cutting and loading in Trolly and transporting to the embankment locations with all lifts and leads.Total lead 5 Km Pucca.

12.5 mm thick Cement Plaster 1:3

Providing and laying Water proofing treatment in sunken portion of WC‘s bathroom etc. by applying cement slurry mixed with water proofing cement compound as per CSR Item No. 30.83

Supplying & Fixing of Well Cap Having Thread to fix in Housing pipe complete in all respect 200mm internal Diameter

Painting two or more coats with synthetic enamel paint in all shades on old work or metallic or plastered or concrete surface to give an even shade including rubbing down old paint.

Labhour required for clearing jungle etc oresent around all the chambers and injection wells.

. SEWERAGE AND DRAINAGE Providing, lowering in trenches to correct gradient and alignment, jointing with tyton rubber joint and cutting of reinforced cement concrete spigot and socketed pipes and specials with rubber ring ISI marekd as per IS code IS 458-2003 into trenches for all depths and laying out the same to correct alignment, gradients, levels etc. cutting of concrete beds and joints holes, supporting the pipes and specials in correct position in a suitable rigid manner while the same are being jointed and until the surrounding benchings, haunches and envelopes are completed. The pipes shall rest on the beds at all joints through their lengths and fixing of rubber ring, facing, testing the pipes for leakage and making good the same leakage and all defects to the entire satisfaction of the Engineer-in-charge including all cartage etc. . R.C.C. Pipe NP -2. 200mm i/d pipe

WATER SUPPLY. Development and Stabilizing of the tubewell with air compressor of required capacity as directed by the engineer-in- charge including cost of tools, appliances & consumable to the satisfaction of Engineer-in-charge.(For bores). Capacity of Air compressor 300 cfm at 250 PSI

Any other Item

RAJINDER KUMAR CONTRACTOR