NIT30e BDO 2025-26 SL 07

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

19(III) Supply of PVC pipes & fittings (medium duty) conforming to ASTMD 1785and threaded to match with GI Pipes as per IS : 1239 (Part - I). (A) PVC Pipes Dia 80mm

Supplying high density polythene strainer of approved make with adapter conforming to I.S. specifications. (iv) 80 mm dia.

Supply of G.I. pipes of TATA make including necessary sockets. (a) 40 mm dia. (i) Light quality metre (ii) Medium quality

(a) 80 mm dia. (i) Light quality metre (ii) Medium quality

2 Supply of galvanised iron socket with I.S.I. mark. (ix) 80 mm dia

4 Supply of G.I. plug (ix) 80 mm

4 Supply of G.I. plug (v) 40 mm

Supply of G.I. reducing tee of approved brand and make (xix) 80 mm X 50 mm

Supplying, fitting and fixing check valve (Vertical) G.M. tested to 21 kg per sq. cm. (vi) 50 mm

Supply of G.I. reducing socket with I.S.I. mark. (iv) 40 mm

Washing and developing tube well with air compressor pump and engine for 8 (eight) hours continuous pumping per day with necessary arrangements for testing the yield in gallons per hour with 'V' notch including hire and labour charges for all tools and plants and scaffolding as required.

Collecting sample of water for bacteriological and chemical test from any depth at any time during execution of work including hire and labour charges for tools and plants and sterilising the equipments, paying all charges and fees, testing etc. complete in all respect as per direction

Packing the annular space between the outside of the tube well pipes & strainers and the bore with pea size washed gravel of approved quality having size from 2 mm to 5 mm or the size approved by the Engineer-incharge including cost of all materials labour and equipment complete.

Supplying, fitting and fixing popular Maya pump no-6 or similar. (i) For 40 mm dia. tube well

Construction of 1.80 M x 1.80 M c.c Platform over Brick Flat Soling with 1.80 m length Drain

Construction of circular soak well 2.5 metre deep in all types ofsandy soils with dry brick work upto1.6 metre from the bottom having 150mmintermediatecementbrick work(1:4)bandallroundandcementbrickwork(1:4)upto0.90metrefromtopwith 20mmthickcement plastering(1:4) to inside faceupto thedepthof cement brick work,15mmthickcementplaster(1:4)onouter facefromtopof thewelluptoG.L. and6mmthickcementplaster(1:4)ontopof theR.C.C.coverslab includingfilling bottom1.00metreof insideof thewellwithbrickmetal (50mmto63mmsize) includingR.C.C. coverslabof100mmthickwithcement conc(1:1.5:3)with stone chipswithnecessaryreinforcementandshutteringincludingone560mmdia.R.C.C. manholecover (heavy type)ofapprovedmakesupplied, fittedandfixedinthecover slabwithnecessary fittings,makingnacessaryarrangements forpipeconnections, excavationofwell includingshoring,dewateringandremovingtheexessearthfrom thepremisesasperdirectioncomplete inall respectwithall costsof labourand materials. With250mmthickdrybrickworkand250mmthickcement brickwork (1:6)and 1.00m inside dia. [ JSW/JSPL/SHYAM/SRMB/BMASL/ELECTROSTEEL/SSL