Details: const. of tubewell construction of bore hole for shallow depth tube well from ground level to required depth for following size for all type of relevant strata by percussion/ rotary drilling/ hand boring method excluding cost of casing pipe. the bore hole should be as per nominal bore of pvc casing pipe. the work will be complete after obtaining sand free water. 200 mm dia nominal bore providing and lowering of isi mark pvc-u casing and screen pipe as per is :12818 : 2010 or amended up to date having pipe thickness as per is code suitable for tw and dcb with threading , winding with superior quality of plastic mesh & rope in three layers with end cap complete as per technical specification and direction of engineer in charge. shallow well casing pipe (cs) suitable for depth up to 80 mtr. 200 mm nominal dia ( internal dia ). providing & lowering in tube well isi marked gi pipe medium duty (“b" class),steel tube as per is:1239 or amended up to date and zinc coating as per is 4736, threa
Sector: Water supply and Sewerage