Thovalai Block - Construction of Infiltration well and Providing new pipe line and motor arrangements at Ambattiyankonam colony habitation west near Malai odai side in Arumanallur Panchayat

Earth work excavation above water level in light or sandy or clay soil for infiltration well of 4.50 m dia (internal ) including levelling the site and as directed by the excavation for infiltration well for first depth of 1.00 m

Reinforced Cement concrete 1:1.5:3 using 20mm ISS HBG metal for all RCC item of works excluding cost of Rein forcement and fabricating charges, centering and shuttering but including curing and providing fixtures like fan clamps in the RCC floor or roof slabs wherever necessary and bearing surfaces of walls , sides and bottom of the slabs, beams etc., shall be finished smooth with cement mortar 1:3, 12mm thick. and with kraft paper without claiming extra as directed by the departmental officers complete complying with standard specifications. Rate for 10m3

Earth work excavation above water level in light or sandy or clay soil for infiltration well of 4.50 m dia (internal ) including levelling the site and as directed by the excavation for infiltration well for first depth of 1.00 m

First depth of 2.0m

second depth of 2.0m

Third depth of 2.0m

Porous concrete in CC 1:4 for steining of infiltration well excluding cost of centering but including curing etc complete and as directed by the TWAD Board officers

Brick work in CM 1:5 mix using country bricks ground moulded of size 22 x 11 x 7cm for the following including curing etc., complete complying with standard specifications. Rate for 10m3