drilling of hand pump for 125m installation of handpump & contstruction of plate form drilling of handpump for 125m installation of handpump & contstruction of plate form , construction of tube-well up to 100 meter depth and above in all type of rocks by dth system and over burden, to accommodate casing pipe of following sizes in all typeof soils & over burden including lovering of casing pipes, but excluding cost of casing pipes as per is : 2800 ( part i & ii ) 1979 specifications. the work would be completed after obtaining sand free water. the tube well should have a throughout bore as per nominal dia of casing pipe.125 mm dia ( item no. 2.45.2 phed bsr 2022 ) , suply oferw m.s. black casing pipe isi marked ( is: 1239 ( part-i :2004 ) ) medium of following sizes at site of work 125 mm dia nb ( thickness of pipe 4.8mm & mass of tube 16.40 kg / m ) ( item no. 2.47.2 phed bsr 2022 ) , supplying and installation of isi marked india mark ii hand pump set complete with cylinder and 15 connecting rods. ( item no. 2.51 phed bsr 2022 ) , supplying and installation of gi pipe 32 mm dia mediam class b with pipe sockets ( heavy duty ) ( item no. 2.50 phed bsr 2022 ) , construction of 185 cm. dia platform as per approved design and drawing of unicef.