Details: construction of tube well from ground level and up to 100 mtr depth and above to accommodate housing assembly pipe in all type of unconsolidated formation such as pebbles, boulders, collapsible formation etc. by odex drilling method as per is: 2800(part i:1991 and is:2800 part ii : 1979 as (both amended up to date ). the work will include lowering of housing pipe and strainer pipe assembly and casing shoe but incuding cost of casing shoe but excluding cost of the casing pipe. the work would be completed after obtaining sand free water. nominal bore 200mm dia construction of tube well after completion of drilling by rotary /percussion/odex method & upto 150 mtr. depth in all type of rocks by dth system as per is:2800 part 1: 1991 and is:2800 part ii: 1979 (both amended upto date) and technical specifications. the work shall be deemed completed only after obtaining sand free water. the bore well should have a throughout nominal size bore beyond casing pipe. (a) up to 150 mtr. (b
Sector: Water supply and Sewerage