Providing new Bore Well and supply, delivery and Erection of 7.50Hp pumpset and allied works at Ward No 49 sadhavaram in Kancheepuram corporation

Conducting physical survey for identification of suitable location for borewell including the loading, unloading and transporting charges for machineries etc., complete as per standard spedifications.

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. Upto 60 Mtr Upto 60 m Depth ending below ground level

From 60 m upto 90 m Depth ending from ground level

From 90 m upto 120 m Depth ending from ground level

From 120 m upto 150 m Depth ending from ground level

From 150 m upto 180 m Depth ending from ground level

Reaming from 150mm dia pilot bore to300mm dia size bore as directed by the department officers up to 60m depth below ., complete as per standard specification. 60.00 t0 90.00mtr

120.00 to 150.00mtr

120.00 to 150.00mtr

150.00 to 180.00mtr

Supply of 150mm dia PVC casing pipe with including cost and conveyance of pipes to work site and all handling charges etc complete 150mm CS Pipe

Supply of 150mm dia PVC casing pipe with without slot including cost and conveyance of pipes to work site and all handling charges etc complete 150mm CM Pipe (Slotted 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.

Charges for developing the borewell with air compressor of 300 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 three phase 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 %. 7.50HP - 100 x 225 Lpm

Supply and delivery of Star -Delta starter three phase panel board - star delta with two level guard and auto start confirming to IS13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/Three Phase/50HZ(± 5%) and 415 V(±10%) including Ammeter, Voltmeter, Thermal Overload relay, 16 Amps 2 pole Magnetic Contactor with under Voltage protection, Indication lamp, starting capacitor, running capacitor and On/Off Push button switches, 5 way connector, wiring with 1 sq. mm/1.5 sq. mm copper PVC insulated cable, powder coated vermin proof box including the capacitor (the cost of capacitor is to be taken separately).7.50HP - Panel Board

Supply and delivery 6.00sq.mm 3 core cflat type copper cable confiring TO IS 8034/2002 ISI make for 10.00 HP submersible motor including cost and conveyance etc., complete., as per standard specification as directed by the departmental officers.

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 ofpanel 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.

Supply and delivery of UPVC & GI Pipe and specials and other jointing materials and including cost and conveyance to work site and handling labour charges etc complete 50mm UPVC Pipe

50mm GI Pipe

50mm GM valve

50mm NRV

90mm x 50mm PVC Reducer

50mm GI Elbow

50mm GI Flange set

50mm GI Hex Nipple

50mm M.S. Clampset

6" Bore Cap

Adaptor Set

Nylon Rope

Supply and delivery of 25Sq.mm 3 core aluminium armoured conductor cross linked poly ethylene insulated pvc sheathed cable conforming to IS 7098(part I) /1998 and as amended thereafter with ISI making

Supply and delivery of 90mm PVC 6ksc pipe

Supply and delivery of 90mm PVC coupler 6ksc pipe

Earthwork excavating and depositing on bank with an initial lead of 10m and initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with mall size of boulders SS20B TWAD SOR 2023-24 pg.No.297

laying of 90mm PVC Pipe 6Ksc

Refilling with excavated soil (other than sand) complete with the standard specification for filling of trenches