Drilling of Borewell and Erection of Submersible motor with Starter and Accessories at Venugopal Street in ward no 18 in Ponneri Municipality

Towards cost of Geophysical investigation survey charges.

Supply and delivery of 150mm dia of PVC casing plain pipe including cost and conveyance at site etc., complete as per standard specification `

Supply and delivery of 150mm dia of PVC casing Slotted pipe ( Company Slots) including cost and conveyance at site etc., complete as per standard specification ISI make

Drilling of borewell anywhere in Tamilnadu including transportation from one place to another place within Tamilnadu in alluvial soil or sedimentary strata of clay and sand or sand, stone, shale, pebbles, boulders etc., by first taking a pilot bore of 140 mm/150mm dia and then enlarging to required dia by direct or reverse rotatry mud and circulation method using Contractor’s rig, fuel, labour, drilling, betonite mud and water required for drilling at the site shown by the TWAD Officers including construction of mud pit (only Calyx drills are to be used).Drilling 150mm dia pilot bore to the required depth Below ground level.

Supply and delivery of 150mm dia(8”) PVC end cap including cost and conveyance etc., complete

Reaming from 150mm dia pilot bore to 300mm dia size bore as directed by the Departmental Officer, to the required depth up to 60 from Ground level

Labor charges for inserting the P.V.C. casing pipes assembly with slots (or) without slots in the drilled holes including joining the pipes etc., complete, supply and packing the annular space with pebbles of size and quality as approved by the Municipal Engineer excluding cost of casing pipe etc., complete 200mm dia PVC casing pipe

Charges for developing the bore wells with Air Compressor 600cfm (Minimum 8 hours) including transportation labor and fuel charges for Compressor as directed by the Departmental Officer and conducting yield test by “V” notch method.

Supply and Delivery of 4.0 Sqmm PVC insulated and Sheathed 3 Core flat type copper cable confirming to IS 694/1990 Including all charges with excise duty and handling charges etc

Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging 150 LPM X 60m head of water . The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continous rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 %