Providing deep borewell in Bus stand at ward no.12 in Jayankondam municipality.

Amount

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 arging 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.

a) Upto 60m depth below GL

b) From 60m to 90m below GL

c) From 90m to 120m below GL

d) From 120m to 150m below GL

e) From 150m to 180m below GL

Reaming 140/150 mm dia pilot bore to 300mm dia bore as directed by the TWAD Board Officer.

a) Upto 60m depth below GL

b) From 60m to 90m below GL

c) From 90m to 120m below GL

d) From 120m to 150m below GL

e) From 150m to 180m below GL

Reaming 300 mm dia pilot bore to 400mm/ 450mm dia bore as directed by the TWAD Board Officer

a) Upto 60m depth below GL

b) From 60m to 90m below GL

c) From 90m to 120m below GL

d) From 120m to 150m below GL

e) From 150m to 180m below GL

conducting Electrical logging test including Transporting charges.

Supply delivery and conveyance of PVC pipes and specials at site

b) 200mm PVC plain pipe (CM)

c) 200mm PVC Ribbed screen pipe

Labour Charges for inserting PVC Casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC Couplers with Cement paste etc., complete, supply and packing the annular space with pebbles of size and quality as approved by the executive engineers of TWAD Board

200mm casing pipe

Charges for developing the borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation labour and fuel charges for compressor as directed by TWAD Board Officers and conducting yield test by 'V' notch method.

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 noted LPM against head of water column due to all causes. 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 % (LPM*M125x200)

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

Supplying and Delivery in position best quality HDPE PIPES - PE 100 AS PER IS 4984/2016, complying with standard specifications.

PVC INSULATED AND SHEATHED 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1990 AND AS AMENDED THEREAFTER

ravikumar (BID ID -1558189)