Construction of infiltration well (2 nos) and providing submersible pumpset, starter, pumping main and cable at Cauvery river Parisal thurai headworks in Kulithalai municipality

Earth work excavation above water level in Lighr or sandy or clay soils for Infiltration well of 4.50m dia (internal) including levelling the site and as directed by the departmental officers open well excavation for First depth of 1.00m.

Drilling of borewells of size 4” to 5” dia. in sedimentary formation using hand boresets including insertion of casing pipes and removal of casing pipes etc., including collection of samples as directed by the Department Officers.

Providing and Fixing of Cutting Edge using 75X75X10mm MS angle Including all charges etc complete

Providing and laying in position, standardised concrete Mix M-20 Grade in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No separate payment will be made by the Department for the excess usage of materials). - Ground Level

Sinking of Infiltration Well of 4.50m dia below water level including all incidental charges in light or sandy soil. a) First Depth of 2.00m

b) Second Depth of 2.00m

c) Third Depth of 2.00m

d) Fourth Depth of 2.00m

e) Fifth Depth of 2.00m

f) Sixth Depth of 2.00m