Construction of Earthen Pond 20 Lakh Litre Capacity with HDPE liner and Geomembrane for rain water harvesting at Chongamong Village Chowra 2nd Call

Amount

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

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 upto 50 m and lift upto 1.5 m, as directed by Engineer-in- charge.

All kind of Soil (top 20% of the excavation quantity )

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 upto 50 m and lift upto 1.5 m, as directed by Engineer-in- charge.

Ordinary Rock (bottom 80% of the excavation quantity soft porous lime rock)

Banking excavated earth in layers not exceeding 20 cm in depth, breaking clods, watering, rolling each layer with 1⁄2 tonne roller, or wooden or steel rammers, and rolling every 3rd and top-most layer with power roller of minimum 8 tonnes and dressing up, in embankments for roads, flood banks, marginal banks, and guide banks etc., lead upto 50 m and lift upto 1.5 m :

All kinds of soil

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Carriage of Material inclusing loading, unloading & stacking (These rates are inclusive of GST on work contract, Contractor's profit and over heads, Cess etc.)

Sand, stone aggregate below 40 mm nominal size (from jetty to working site approximately 2 km )

Earth (from working site to dumping area 1 km )=Excavted volume-Banking Volume

Providing and fixing 3 layer PP-R (Poly propylene Random copolymer) pipes confirming to IS:15801 UV stabilized & anti - microbial fusion welded, having thermal stability for hot & cold water supply, including all PP - R plain & brass threaded polypropylene random fittings, including trenching, refilling & testing of joints complete as per direction of Engineer-in-Charge, (For Overflow Purpouse)

PN - 10 Pipe, 110 mm OD (SDR-11)

Supplying & laying of HDPE Geomembrane Liner conforming to IS 15351:2015 SPECIFICATION is HDPE woven fabric laminating with LDPE using extrusion coating technology. Ideal for contaminant and retention application such as pond liner and landfill covers. high tensile strength , tear strength , excellent heat seal property,flexibility , outstanding durability,stress cracking resistance,provide superior performance in all climate condition. EXPOSE WARANTY-10 YEARS, BURIED WARANTY-15 YEARS .

Property- thickness-1.10 mm , Mass-955 g/m^2, Carbon black contents-2.5% , Breaking Strength-13700 N (Warpway) 14500 N (Weftway), Impact failure load-4500 (Gf),Tear resistance- 375 (N), Puncture resistance-1000 (N),Bursting resistance-290 (N/cm^2), Seam strength-460 (N/mm),Hydrostatic resistance-34(Kg/cm^2)

Abdul Gafoor (BID ID -47965)