WBPWDEETDSSNIeT13 of 2025- 26 /2

Deep Tubewell 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 (Dia) 50 mm.

(J) Threaded End Cap 100 mm

Reduceing Socket (100 mm x 50 mm)

(v) Nipple (300 mm long) 150 mm

Labour forboringtubewellof requireddia.bywater jet systemthrough anytypeofsoilstrataincludinghireandlabourchargesforboringpipes,scaffolding, tools and plants as necessary and taking out themand loweringpipes, strainers, blindpipeetc. and fittingand fixing thesame complete including bucket washing and other incidental works in theconnection.Thetubewellshouldhaveaminimum50mmgapinbetween the outside of the tubewell pipe and the bore.. d) For depth upto 150 metre for 50 mm dia. tube well with top enlargement of 100 mm dia.First 50 metre 50 mm dia boring etc

100 mm dia boring etc

For depth more than 150 metre for 50 mm dia. Tube well with top enlargement of 100 mm dia. 50 mm dia. boring etc.beyond 150 mm

Supplying high density polythene strainer of approved make with adapter conforming to I.S. specifications. 50 mm dia.

Supplying, fitting and fixing steel cutter piece upto 450 mm long with sockets. 75 mm

Supplying, fitting and fixing heavy type bell mouth reducing socket. 50 mm X 100 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.

Labour for making arrangement for showing verticality test including the cost for hire charges of tools and plants and sterilising the equipments, paying all charges and fees, testing etc. complete in all respect as per direction.

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-In-Charge including cost of all materials labour and equipment complete. Note : Initial 6 m. of Annular space between the housing pipe and the bore should not be shrouded with Pea size gravel contamination with surface water.

Packing annual space between the outside of the housing pipe and the bore with puddled clay balls of approved size as per direction of the Engineer-In-Charge with cost of all materials and labour complete.

Geophysical investigation of the acquifer by electrilogging system with all tools and plants as necessary including suply of necessary report.

Pump Installation Supply, installation, testing & commissioning of 1 H.P. 3-phase 415 Volt capasity submersible pump & motor set having ISI mark (KSB,Kirloskar or similar brand) with a head generation not less than 100 mtr. having by 6 mm dia. water proof pvc coated steel rope of required length. posioning by 2inch (50 mm) holding clamp and bolt including 6 mm th. MS plate with central hole at top and one pair GI adopter etc. and feeded by 3 core 2.5 sq mm flat electric copper cable (finolex) for discharge of clear sand-free water,in addition with 3 H.P. (440 BCH/KSB or similar brand) 3 phas control pannel with suitable relay range.

Add 18% extra in respect of GST on all items (1 to 12), on Rs.259265.00

Add 1% extra in respect of Labour Welfare Cess on items no. (1 to 13) on Rs.305933.00