Providing Borewell

Conducting geo physical survey for quality and quantity test including cost of all charges etc., complete

Supply and delivery of PVC CASING PIPE AS PER IS 12818 / 2010 with Excise Duty including cost and conveyance of all materials and labour charges etc., complete

a) 150mm Dia PVC Plain Casing Pipe (WD-M0028)

b) 150mm OD PVC Slotted Casing Pipe (WD-M0029)

c) 150mm PVC End Cap

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.

From 60m depth ending below ground level (60m) (WD-W0783)

From 60m depth to 90m ending below ground level (WD-W0784)

From 90m depth to 120m ending below ground level (WD-W0785)

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

From 60m depth ending below ground level (60m) (WD-W0794)

From 60m depth to 90m ending below ground level (WD-W0795)

From 90m depth to 120m ending below ground level (WD-W0796)

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 (WD-W0830)

Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and One hour 1465.50 fuel charges for compressor as directed by TWAD Officers and conducting yield test by ‘V’ notch method. (WD-W0833)

Supply and delivery of clear water vertical wet type submersible pump conforming to IS 8034/2002 and 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 continuos rated two pole suitable wet type vertical squirrel cage induction motor suitable for operation in AC single phase 230 V+/- 10 %,50 HZ +/-5 % (WD-M1588)

Supply and delivery of direct online starter confirming to IS13947, IEC60947-1 and as amended thereafter with suitable KW rating for operation in AC/single Phase/50HZ(± 5%) and 230 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). (WD-M1905)

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. (WD-W0871)

Supply and delivery of MS Kiosk of size 0.75m x 0.45m x 0.75m made up of MS angle of size 50mm x 50mmx 4mm alround covered with 16 gauge MS sheet and kiosk door made up of MS plates of size 25 mm x 3 mm including cutting, welding, grinding, locking arrangements and labour charges etc., (WD-M1471)

Supply and delivery of HDPE tank of 1,000 Lit. Capacity bearing with ISI mark providing 3 Nos of 20mm Tap connection with checknut washer nipple arrangement and 1 No of 25mm scour and 32mm for over flow arrangement etc., complete Construction of Brick work pedestal using country bricks in cm 1:5 of size 1.30m dia, 0.60m height with a plat form 2.50m outer dia to a depth of 0.30m height with PCC 1:4:8 using 40mm HBS metal etc., complete

Supply and fixing of PVC and GI specials including cost and conveyance of all materials and labour charges etc., complete

a) 1 1/4" GI Pipe -

b) 1 1/4" GI Coupling

c) 1 1/4" GI Elbow

d) 1 1/4" GM Gate Valve

e) 1 1/4" NR Valve

f) 1 1/4" CI Union

g) 1 1/4" MS Pipe clamp

h) 1 1/4" GI Pipe Nipple - 9"

i) MS Bore Cover

4.0 Sq.mm 3 core submersible cable

Construction of bore pit

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