Public Health Engineering Department Tender

Construciton of hand pump

2.44 Construction of tube well from ground level and 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 upto date) and technical specifications, with gravel as per IS:4097-1967 and it s packing as per IS: 2800 (Part I and II) 1979 as amended up to date (the work includes the cost of gravel and it s primary packing and packing during development, lowering of housing and 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. 2.44.1 Nominal bore 125 mm dia.

2.48 Providing and Lowering of ISI mark Medium well PVC-U casing and screen pipe (CM) as per IS : 12818 : 2010 or amended upto date having pipe thickness as per IS code suitable for bore well with threading , winding with superior quality of plastic mesh and rope in three layers with end cap complete as per technical specification and direction of Engineer In charge. 2.48.1 100 mm nominal dia ( internal dia ).