New OHT at KodathurManavely Village

Amount

Drilling of borewell any where in Pondicherry including tranportation in alluvial soil, sedimentary strata of clay,sand stone, shale, pebbles, boulders etc. by first taking a pilot bore of 140mm / 150mm / 200mm and then enlarging to required dia by direct or reverse rotary mud circulation method,including fuel, labour for drilling, bentonite mud, water required for drilling at the site, contruction of mud pit (water available within a lead of 1.5Km) using rotary rig. -Upto 60 mts depth ending below ground level.

Reaming from 140/150 mm dia pilot bore to 300mm dia bore. Upto 60 mts depth ending below ground level.

Reaming from 300 mm dia pilot bore to 400/450mm dia. Upto 60 mts depth ending below ground level.

Providing and fixing of UPVC End Cap embedded in M.S. Cone suitable for UPVC casing pipe including the cost of materials and labour for jointing.

Supplying of UPVC plain casing pipe for borewells (FINOLEX / JAIN/SUPREME / TRUEBORE/ NANDI) conforming to I.S. 12818 -1992 with relevent amendments with class designation 'CM' and with minimum wall thickness 10mm including transportation and stocking at site -200mm dia

Supplying of UPVC ribbed screen slotted pipe for borewells (FINOLEX / JAIN/SUPREME / TRUEBORE/ NANDI) conforming to IS 12818 -1992 with relevent amendments with class designation 'RS' and with minimum wall thickness 10mm including transportation and stocking at site - 200mm dia

Lowering of UPVC plain casing pipe/ribbed screen slotted pipes into the borewell including cost of cleaning material,fixing of M.S centering guide size of 25mm x 3mm thick suitable for 200mm dia UPVC pipe,including cost of labour for positioning of assembly for lowering purpose using rig.

Providing and fixing M.S. top cover suitable for UPVC pipes including the cost of materials and labour etc.

Supplying transportation and packing of 8mm size down gauge graded pebbles including filling the annular space gradually complete.The pebbles disintegrated pieces. should be free from any disintegrated pieces.

Supplying,transporting and packing of clay balls including filling the annular space gradually complete.The clay balls should be free from any sand particles.

Charges for developing the borewells with air compressor of 600 CFM capacity (minimum 8 hours) including transportation labour and fuel charges for compressor and conducting yield test by"V" Notch methods.

Earthwork in surface excavation not exceeding 30cm in depth but exceeding 1.5m in width as well as 10 sqm on plan including disposal of excavated earth upto 50m and lift upto 1.5m, disposed soil to be levelled and neatly dressed. - All kinds of soil.