15TH CFC TIDE AND UNTIDE GRAND 1ND INSTALLMENT 2024-25

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 150 mm/200mm 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. As per TWAD Schedule of Rates SL NO.12 A

Upto 60 mt. Depth ending below ground level Sl.No 12 A - i

60 mt. to 90m Depth ending below ground level Sl.No 12 A - i

Reaming 140/150 mm dia pilot bore to 300mm dia bore as directed by the TWAD Board Officer As per TWAD Schedule of Rates SL.NO 12b

Upto 60 mt. Depth ending below ground level Sl.No 12 b - i

60 mt. to 90m Depth ending below ground level Sl.No 12 b - i

Supply of the following casing pipes of ISI approved quality with wall thickness not less than 7.5mm to 8.5mm with PVC couplers and cement Paste etc. Complete and including packing the annular space with pebbles quality and size of pebbles and the PVC pipe should be approved by the departmental officer. As per TWAD Schedule of Rates SL.NO 1.2 AS PER IS 12818/1992

150mm dia OD PVC Plain casing Pipe (CS) Sl.No. 1.2 - 1

150mm dia OD PVC slot casing Pipe (RS) Sl.No. 1.2 - 3

150mm dia OD PVC end cap Sl.No 1.5 - 11

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 TWAD Board SL.NO.12Ei

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. TWAD Board SL.NO 13B

supply and delivery of 1 HP single phase Submersible pumpset of duty condition 20lpm x 100 m as per IS 8034 without panel board etc complete as per standard specification.TWAD Board SL.NO.3.1 - 3

Supply of single phase Pannel board suitable for 1HP with two level guard and auto start etc complete as per standard specification. TWAD Board SL.No. 11.1 - 2

Supply and delivery of Flat cable suitable for submersible pumpset 2.5sq.mm TWAD Board SL.No.12.1 - 4

Labour charges for the errection of 1HP submersible pumpset in the Borewell 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 walls errection clamps pressure gauges up to the exterior wall of pumping room and errection of panel board consisting of DPICN switches starter volt meter ammeter, Three Pilot ( Indicating ) lamps capacitor single phasing preventer water level guard and laying and jointing the cable s and twin earthing as per IE rules etc complete and testing to the pumpset and trial run for 10 Days. TWAD Board Sl.No- 17c-i

Supplying and fixing of pipe and accessories ISI make including cutting and threading cost and conveyance of all charges etc complete as per standard specification.

UPVC 40mm pipe PWD Schedule of rates

32mm GI Pipe

32mm GI Elbow

32mm GI Union

SHANMUGAM SARAVANAN (BID ID -1206585)

Bidder Name

SANGANITHI CONSTRUCTIONS

SHANMUGAM SARAVANAN