Boring and Installation of submersible pump for water supply at Jorehira 33 by 11 KV Sub Stn premises under Bankura Division, WBSEDCL.

Labour for boring through any type of soil for Sinking tube well of required dia. with top enlargement by rig boring system (either by reverse circulation or by direct rotary method ) including hire charges and labour for rig machine, tools & plants, stagging, force pumping set and making arrangement for water required for boring etc.complete & lowering of pipes strainers blind pipe etc. complete. For depth upto 250 metre for 100 mm. dia. Tube well with top enlargement of 200 mm. dia (up to 50 metre) i) First 50 m

ii)Next 50 m

iii)Next 50 m

iv) Rest 100 metre

Supplying, fitting and fixing PVC pipes for underground work of approved make (medium duty) conforming to ASTMD- 1785 and threaded to match with G.I. pipes as per I.S: 1239 (Part-1). With all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted including cost of all materials, jointing materials, cutting pipes, making threads, cutting trenches upto 1.5 m below surface in all sorts of soil and refilling the same as directed complete in all respect.(Payment will be made on the centre line measurement of the total pipe line including all specials no separate payment will be made for accessories, specials.) a) P.V.C. pipes (Dia) i) 200mm

ii)125mm

iii)100mm

iv) 32mm

Supplying high density polythene strainer of approved make with adapter conforming to I.S. specifications. 100 mm. dia.

Supply of High density Poly-ethylene Pipe conforming to IS-4984-1985 (Dia) 10 Kg/Sq.cm.(Working Pressure) 32mm