Details: construction of tube well from ground level & up to 100 mtr depth to accommodate housing and assembly pipe of following sizes in all type of alluvium strata unconsolidated formation such as pebbles, boulders etc. by percussion/rotary drilling method as per is:2800 part 1: 1991 and is:2800 part ii: 1979 (both amended up to date) and technical specifications, with gravel as per is:4097-1967 and it's packing as per is: 2800 (part i & ii) 1979 as amended up to date (the work includes the cost of gravel & it's primary packing and packing during development, lowering of housing & strainer assembly pipes with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles and development work, but excluding the cost of housing and strainer pipe assembly). the work would be completed after obtaining sand free water. nominal bore 200 mm dia. providing and lowering of isi mark pvc-u casing and screen pipe as per is : 12818 : 2010 or amended up to date having pipe thickn
Sector: Water supply and Sewerage