Providing Borewell with Pumpset as an Additional Water Source for Existing OHT at Shoba Encalve at Tharapakkam Panchayat,Kundrathur Panchayat Union Peri Urban Panchyat Scheme Funds of the Year 2025-26.

Charges for Conducting Geo Physical Survey

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs, fuel, labour and drilling bentonite and water required for drilling at site ( Site will be shown by the TWAD Board Officers) including construction of mud pit. - 0m to 60m Depth

60m to 90m Depth

90m to 120m Depth

Reaming of 150mm Dia Borewell to 300mm Dia Borewell as directed at site - 0m to 60m Depth

60m to 90m Depth

90m to 120m Depth

Labour charges for inserting casing pipe supply & packing of pebbles

Supply & delivery of 200mm Dia PVC Plain Casing pipe as per IS 12818 / 2010

Supply & delivery of 150mm Dia PVC Plain Casing pipe as per IS 12818 / 2010

Supply & delivery of 150mm Dia PVC Slotted Casing pipe as per IS 12818 / 2010

Charges for developing the borewell using air compressor in hours of 300 CFM Capacity

Supply & Delivery of 5.00 HP Submersible Pump set Discharges : 175m & 75 LPm for 150mm dia Borewell as per IS 8034

Supply & Delivery of control panel board suitable for Three phase Submersible motor with two level Guard & Auto start

Supply & Fixing of 50mm GI Pipes

Supply & Fixing of 50mm GI Coupling

Supply & Fixing of 50mm GI Elbow

Supply & Fixing of 50mm GM Gate Valve

Supply & Fixing of 50mm GM NR Valve

Supply & Fixing of 50mm GI Flange set

Supply & fixing of 4.00 Sqmm 3 core flat type copper cable as per IS 694/1990

Erection Chagres to new submersible pump set & Fixing of new Control panel board

Earth work excavation in all types of strata for laying of 90mm Dia PVC pipes with the standard trench width as per Bd .Circular No. 28/ AE10/ P&D/ 2001/ dt. 01.10.2001 and JCE (P&D)/ Lr.No. LM/ AE10/ P & D/ 2001/ dt.22.11.2001

Supply of unplasticised 90mm Dia PVC rigid pipes 4kg per Sqcm as per BIS 4985/2000 with ISI Marking to site of works

Lowering and laying the 90mm Dia PVC Pipes and specials to trench , laying to proper grade and alignment, Jointing with PVC coupler and specials fixing with Solvent cement paste etc

Refilling with excavated soil complying with standard specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested.