WORK 1 PONBEETHI BOREWELL AVK UNION

Amount

Providing for new Deep Borewell (Sedimentary area) At Erayamangalm in Ponpethi Panchayat

Conduction Geo physical survey using scienfic instrument

Cost of erection of M.S Outer casing pipes 400mm dia upto required depth (Minimum 30m) incliding drillings of 450mm dia and pulling the outer casing pipe after packing of well as directed by the Department Agency Officers

Drilling of Borewells anywhere in Tamilnadu including transporation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles bouulders etc., By first taking a pilot bore of 150mm dia and then enlarging to required dia direct or reverse rotary mud circulation method using rotary rigs fuel,labour and drilling benonite and water requried for drilling at site and including construction of mud pit etc., complete

0 to 60m from G.L

60 to 90m from G.L

90 to 120m from G.L

120 to 150m from G.L

150to 180m from G.L

180 to 210m from G.L

210 to 240m from G.L

240 to 255m from G.L

270 to 300m from G.L

300 to 330m from G.L

330 to 336m from G.L

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

0 to 60m from G.L

60 to 90m from G.L

90 to 120m from G.L

120 to 150m from G.L

150to 180m from G.L

180 to 210m from G.L

210 to 240m from G.L

240 to 255m from G.L

270 to 300m from G.L

300 to 330m from G.L

330 to 336m from G.L

Reaming 200 mm dia pilot bore to 350mm dia bire as directed by the TWAD Board Officer

Upto 60m depth ending below G.L

Form 60m and upto 90m depth ending below G.L

Form 90m and upto 120m depth ending below G.L

Form 120m and upto 150m depth ending below G.L

Form 150m and upto 180m depth ending below G.L

Form 180m and upto 210m depth ending below G.L

Form 210m and upto 240m depth ending below G.L

Form 240m and upto 255m depth ending below G.L

Form 270m and upto 300m depth ending below G.L

Form 300m and upto 330m depth ending below G.L

Form 330m and upto 360m depth ending below G.L

supply and Delivery of unplasticised PVC Casing Pipes of the following diametre in 3 metres length with screwed and scoket ends and centering guides for every 15m length of pipes as per IS 12812 / 92 and Dn 4925 and as asmended from time to time to suit deep borewells as above 250m depth for delivery at site including unloading freight transit and insurance etc., complete

Supplu of 200mm Nominal dia (8") Deep Borewell PVC Plain casing Pipes (CD) wall thickness 13.0mm to 14.30mm at site of work

Supplu of 200mm Nominal dia (8") Deep Borewell Ribbed Screen casing Pipes (CD) wall thickness 13.0mm to 14.30mm at site of work

Supply of 200mm Nominal dia with Bolting arrangements

Supply and delivery of Clay balls of size 6mm to 9mm

Labour charges for inserting Casing pipes assembly ( with slots or with out slots) in the drilled hole, filling with the annular space with pebbles of size and quality as approved by the officer

Charges for developing the Borewell with aor compressor of 600 CFM capacity including transporation, Labour and fuel charges for compressor as directed by Officers and conduction yield test by 'V' notch method

GST Amount for providing Service to Government Contract Works for the above RENEWAL Works. { GST Amount is the Total GST Amount for overall quoted amount above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

SENTHILKUMARAN SARASU