Construction of 6 Nos Deep tube well within IIT Kharagpur Campus

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.For depth upto 250 metre for 200 mm dia. Tube well with top enlargement of 300 mm dia.First 50 M. for each tubewell

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.For depth upto 250 metre for 200 mm dia. Tube well with top enlargement of 300 mm dia.Next 50 M. for each tubewell

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.For depth upto 250 metre for 200 mm dia. Tube well with top enlargement of 300 mm dia.Remaining depth. for each tubewell

Supply and delivery of UPVC pipe (CD) conforming to IS 12818:2010. (CIPET Certified)300 mm inside diameter

Supply and delivery of UPVC pipe (CD) conforming to IS 12818:2010. (CIPET Certified)200 mm inside diameter

Supply and delivery of UPVC Deep Well Screen (RDS) Pipes with Ribs conforming to IS 12818:2010 .(CIPET Certified)complete as per direction of EIC. a) 200 mm dia.

Supply of PVC pipes & fittings Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). (A) PVC Pipes,100 mm

Supply of PVC pipes & fittings Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). (A) PVC Pipes,100 mm (G) Flange,100 mm dia

Excavating trenches by mechinical / manual means of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, for all depth, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m :Pipes, cables etc. exceeding 80 mm dia. but not exceeding 300 mm dia

Supplying fitting fixing the following accessories.200 mm centre guide.

Supplying fitting and fixing M.S./GI top cap 300 mm dia

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I).200 mm dia

Supplying fitting fixing MS housing clamp 12 mm thick of approved quality.

Supply and delivery of UPVC Cap,c) 200 mm dia.

Lowering and placing of filter assembly of required length and Extraction and partening off the casing pipe of required length

Geophysical investigation of the aquifer by electro logging system with all tools & plants including supply of necessary report.

Packing the annular space between the tubewell 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-in-charge including cost of all materilas labour and equipment complete.

Packing the annular space between housing pipe & the bore with puddle clay balls of approved size as per direction of E.I.C. with cost of all materials, labour & equipment.

Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of useable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “V” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, including disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Sypply of E.R.W.M.S.(Electrical Resistant Welded M.S.) black pipe of of TATA make (heavy quality) as per standard specification, 5 mm thick.100 mm dia. (internal)

Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc.100 mm dia sluice valve class 2

NON - RETURN VALVE with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as specified. 100 mm dia

Providing and fitting fixing S&S C.I. Standard specials such as tees, bends, collars tapers and caps etc, suitable for flanged jointing as per IS : 1538 : Up to 300 mm dia

Supplying fitting fixing the following accessories.300mm x 200mm dia upvc reducing socket

Providing and fixing M.S. clamp of required dia to the top of casing/housing pipe of tubewell as per IS: 2800 (part I), including necessary bolts & nuts of required size complete. 100 mm clamp

Providing flanged joints to double flanged C.I./ D.I. pipes and specials, including testing of joints :100 mm diameter pipe