Drilling of New Bore well and supply, delivery and Erection of Handpump at Thenambakkam Anjur Barrial ground in ward No.51 at 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.281

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.

Supply of 160mm dia Plain PVC pipe 6 kg.\m2 in pressure for bore wells including all cost and conveyance to site etc., complete as per standard specification. TWAD SR 2023-24 page No.20

Supply of 150mm dia PVC slotted pipe kg\M2 in pressure for bore wells including all cost and conveyance to site etc., complete as per standard specification. TWAD SR 2023-24 page No.20

Labour charges for inserting the casing 150MM/PVC pipes assembly (with slot on without slots) in the drilled hole inluding the joints jointing etc., Complete complying the packing the annular space with pebbles of size and quality approved by the Municipal Engineer etc., complete asper standard specification.TWAD SR 2023-24 page No.316

Charges for developing the bore well to the entire depth with suitable air compressor (minimum 8 hours) including transportation charges for air compressor as directed by the departmental officers complying yield test in the bore well etc. complete (using 300 cpm compressor) asper standard specification. TWAD SR 2023-24 page No.317

Supplying, fitting and fixing MARK-II Hand Pump Dinco Make (for 50 mm or 40 mm dia. tube well).

Supplying, fitting and fixing 65 mm dia. deep well brass cylinder with necessary fittings and accessories.

Supplying, fitting and fixing 15 mm dia. galv. M.S. connecting rod with sockets of length 3 m. each

Supply of G.I. pipe for 40 mm dia. medium quality

Supply of G.I. pipes coupling for 40 mm dia. medium quality

labour charges for Erection of deep well hand pumps upto 40 m

Construction of 1.5 m. x 1.5 m. platform with 75 mm thk. 1:2:4 PCC over 75 mm. Thk. Brick flat Solling and 125 mm. thk. Surrounding brick work (1:4) with 15 mm. thk Plaster (1.:4) & Neat Cement finish and blocking, fixing the tubewel pipe with (1:2:4) cement Concrete with Stonechips at Platform Level.

ARAVINDAN A