KMDA/HOUSING /EE/ DIV-III/Circle III(BSUP) /NIT-39/2025-2026

Surging of existing tube well with chemical treatment and bucket wash (prior to use of compressor machine) and developing the tube well with compressor machine at least 3 (three) days at 8 (eight) hours per day till the yield is obtained at least by 75% of the total specified yield of the tube well (measured by 'V' notch tank) and draw down is within the permissible limit of 10% variation and water so obtained after such washing and developing will be free from sand and bacteria for which test report from the Public Analyst is to be obtained. (The rate is inclusive of all labour and materials including hire charges of tools and plants and cost of materials.) (a) For tube well of size bigger than 100mm dia. with top enlargement to have yield of 6000 gallons per hour.

Lifting of existing submersible pump along with column pipe for surging a tubewell and lowering the same including column pipes in its required position after completion of surging works of the existing tubewell using tripod,chain,pully and other accessories.

Supplying, fitting and fixing cast iron spun pipe conforming to I.S.1536/1976 with all necessary specials including cutting trenches in any soil or through masonry, concrete etc., if necessary, and mending good all damages including jointing pipes with Tyton joints as per manufacturer's specifications and filling up the trenches all complete but excluding the cost of masonry or concrete work, if required. (a) Class A: (i) 80 mm nominal dia.

Supply and delivery of 3 “dia (80mm) dia 4.85 mm thick M.S column pipe (Tata make) H” marked (ISI) of 10’- 00” long each pipe with both end screwed tapered threaded (11TPI) & Threaded portion length must be 1.5 inch) with one end fitted with heavy gauge 4” long socket (10 – 12 mm thick) and to be painted with anticorrosive paint both (Asian /shalimer) both inside and outside of the pipe complete.

Supplying, fitting and fixing PVC pipes for underground work of approved make of Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). 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 metre 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.) PVC Pipes (Dia) 80 mm

Supplying, fitting and fixing Peet's valve fullway gunmetal standard pattern best quality of approved brand bearing I.S.I. marking with fittings (tested to 21 kg per sq. cm.). (i) 80 mm dia

(ii) 50 mm dia

Add GST @ 18% on Total amount over item No. 1 to 6.02

Add Labour Welfare Cess @ 1% on Total amount over item No. 1 to 7