Civil works for Network stations (FCS,AWS,DWLR etc.,) in respect of GroundWater Division, Tirunelveli for the year 2020-2021

Amount

Earth work excavation for foundation and depositing on bank with initial lead of 10 m & initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders SS.20B to a required depth as directed by the departmental officers.

Supplying and erecting centering for sides and soffits of plain surfaces such as slab etc., using M.S. Sheets of size 90cm x 60cm BG 10 gauge stiffended etc., complete complying with standard specification.

Cement Concrete 1:3:6 (One Cement,three Sand, and six hard broken granite jelly) using 20mm hard broken granite jelly and M. sand to the work including curing and finishing etc., complete complying with the standard specifications.

Plastering with Cement mortar 1:5, 12 mm thick complete complying with standard specifications

Fabricating and supplying of Protection Box for observation bore well using 5 mm thick M.S. Steel Plates to the dimension of 650 mm * 400 mm. Height of box at rear side is 530 mm and 450 mm at front side. Top cover with projection to be provided with necessary hinges and pad lock arrangement to open and lock the box. Necessary arrangements to be provided at the bottom of the box to embed the box with concrete platform.The cost includes all materials, labour for welding, one coat red oxide primer, painting with two coats of approved enamel paint, Bolt, Nut, Lock and Key, writing the bore well details on the protection cover and transporting to the bore well site as directed by the departmental officers.

Fabricating supplying and fixing of Outer Fencing in position M.S Steel framed weldmesh grill using 40x 40x 6mm angle for outer frame with 25 x 6 mm flats stiffeners welded 4 Nos horizontally and 3Nos welded vertically in both direction and using 3"x 1" and fixing of steel door with outer frames of size 35x35x6mm for the shutter frames stiffeners with 25 x 6mm M.S flat is provided at 4 Nos diagonally and 2 Nos in the middle portion of door front and back in the shutter frame. 18-gauge C.R. sheet laid as panel in the shutter and welded intact with necessary locking facilities and hinges including one coat of red oxide primer as directed by the departmental officer complete complying with standard specification.

Supplying and fixing of MS angle and Flat for providing chain link fencing as directed by the departmental officers complete complying with standard specification.

Supplying and fixing chain link fencing 5 cm x 5 cm using 10 gauge wire including the cost of binding wire but excluding the cost of MS Flat and Angle etc. complete as directed by the departmental officers complete complying with standard specification.

Supplying and fixing of MS Grill Gate using MS angle and MS square rods including priming coat etc. complete as directed by the departmental officers complete complying with standard specification.

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc as directed by the departmental officers complete complying with standard specification.

Removal of roots inside the borewell for a depth 0 to 50 m including hire charges for machineries, labour charges, Conveyance charges and other charges as directed by the departmental officers complete complying with standard specification.

Supplying and fixing of 75 mm dia 6 Kg/ cm2 PVC inner pipes into the Bore well to the required depth as directed by the departmental officers complete complying with standard specification.

Supplying and fixing of MS clamp for holding 75 mm PVC pipe in borewell platform including cost of materials, labour charges, Conveyance charges as directed by the departmental officers complete complying with standard specification.

Supplying and erection of PVC 150 mm Special Blue Slotted Pipes for Bore Wells casing pipe of best approved quality with ISI mark with necessary PVC coupling etc. as directed by the departmental officers complete complying with standard specification.

MR.M.MADHAVAN

MR.V.SURESHKUMAR