Additional Work of Borewell at Thiruveethipallam Sanitary Works Ward No.25 in kancheepuram Corporation

Amount

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. Pg.No.302 Upto 60 Mtr Upto 60 m Depth ending below ground level

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. Pg.No.302 From 60 m upto 90 m Depth ending from ground level

Reaming 300 mm dia pilot bore to 400mm/ 450mm dia bore as directed by the TWAD Board Officer. Upto 60 m depth ending below ground level

Reaming 300 mm dia pilot bore to 400mm/ 450mm dia bore as directed by the TWAD Board Officer. From 60 m depth and upto 90 m depth ending below ground level

Supply of 150mm dia PVC casing pipe with including cost and conveyance of pipes to work site and all handling charges etc complete TWAD SOR Pg.No.22

Supply of 150mm dia PVC Ribbed Screen pipe with including cost and conveyance of pipes to work site and all handling charges etc complete TWAD SOR Pg.No.22

Supply of 200mm dia PVC casing pipe with including cost and conveyance of pipes to work site and all handling charges etc complete TWAD SOR Pg.No.22

Labour Charges for inserting 150mm 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. Pg.No.304

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 Officers and conducting yield test by 'V' notch method.

Supply of PVC insulated and sheathed 3 core 2.50 sq.mm flat type copper cable conforming to is 694/1990 and as amended thereafter TWAD SOR Pg.No.120

Supply and delivery of clear water vertical wet type single 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 %. TWAD SOR. Pg.No.102

Supply and delivery of direct online starter single phase panel board - D.O.L 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). TWAD SOR. Pg.No.114

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. TWAD Pg.No.308

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 Pipe Line 32mm UPVC Column Pipe (Ashirvad Pipe)

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 Specials 32mm GI Elbow

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 Specials 32mm GM Gate Valve

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 Specials Borewell Clamp set

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 Specials Borewell Cover Plate

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 Specials Nylon Rope

S.RANGANATHAN