Municipal Administration And Water Supply Department Tender

Conducting Geophysical Investgation for finding ground water table with necessary T & P including all labour charges etc complete as per std specification

Supplying of 140mm dia PVC Special Blue pipes for borwelles outer casing pipe of best quality including all labour charges etc., complete as per standard specifications (PWD SOR 2022-23 Item No. 397 (A) c Pg. No. 104

Drilling of 125mm (4 3/4”) nominal dia vertical borewells anywhere in Tamilnadu in all formations, suitable for down the hole hammer drilling such as medium hard rock to hard rock formation, consolidated formation etc and drilling over burden to a dia not less than 200mm including insertion of 165 mm PVC casing pipe, couplings caps and other relevant materials required upto the depth as directed by the Engineer or his representative including grouting of cement 25kg (minimum) up to the depth of over burden are including borewell development flushing of borewell at a pressure 7kg/cm2 (100 lb per square inch) including yield test, crew charges, cost of consumables, transportation charges of casing pipes and all other materials including assembling complete to the satisfaction of the Engineer and as stipulated in the technical specification. The entire works should be carried out as per IS 2800 Part I & II / 1979. Finished dia of borewells shall not be less than 145mm