Details: construction of tube well up to 100 mtr. depth in all type of rocks by dth system & over burden to accommodate casing pipe of following sizes in all types of soils & over burden including lowering of casing pipes, (if required) excluding cost of casing pipes, as per is:2800 part 1: 1991 and is:2800 part ii: 1979 (both amended up to date) and technical specifications. the work would be completed after obtaining sand free water. the tube well should have a through out bore as per nominal dia of casing pipe. 200mm dia nb, upto 100 mtr depth 200mm dia nb, above 100 mtr depth deepening of existing tube well by dth system beyond existing depth up to 100 mtr. and above in all type of rocks including flushing of tube well and obtaining sand free water. nominal bore 200 mm dia. testing verticality of tube well by plumbing system and yield test and draw down test by pumping system as per is : 2800 (part – ii) – 1979 or as per amended up to date. supply of erw m.s. black casing pipe isi marke
Sector: Water supply and Sewerage