Estimate for Restoration/Maintenance of 7 No Artificial Structure to Recharge Ground Water under jurisdiction of Sangrur Canal And Ground Water Division Sangrur

(51) Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:-((b)) Second Layer :----- Coarse sand screened, cleaned and washed and graded from 3mm to 6mm (from Pathankot or approved equivalent quarry).

(51) Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:-((c) ) Third Layer :----- Bajri screened, cleaned and washed and graded from 6mm to 20mm (from Pathankot or approved equivalent quarry).

(51) Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:-((d)) Fourth Layer :----- Bajri (Coarse) screened, cleaned and washed and graded from 20mm to 25mm (from Pathankot or approved equivalent quarry).

(81) 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.((a)) Capacity of Air compressor 300 cfm at 250 PSI

Removing of 2-6 mm gravel from the filteration chambers and clearing chamber after replacing the old gravel and clearing chamber after replacing the old gravel

Removing of 6-20 mm gravel from the filteration chambers and cleaning chamber after washing

Removing of 20-25 mm gravel from chamber

Cleaning of already laid pipeline (200 mm pipe) with compressor/Air Blowers including all safety measures complete in all respect

Cleaning of already laid pipeline (160 mm pipe) with compressor/Air Blowers including all safety measures complete in all respect

(14) Lifting of filtration chamber RCC slab with cranes 3 tonnes 3 tonnes

Any other Item