WBMAD/NDITA/86/2025-26/SL.02

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 1x50.0 m.

(ii) Next 50 metre 1x50.0 m.

(iii) Next 50 metre 1x50.0m.

Supplying brass-strainer with brass socket of approved make. (Heavy type). (ii) 50 mm dia. 1x30.0m.

Supplying, fitting and fixing in position G.I. pipes of TATA make for underground works with all necessary accessories,specials viz.socket,bend, tee, union, cross, elbow, nipple, short piece etc.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 with two coats of painting on G.I. pipes and specials with bituminous paint 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.Payment for painting will be made seperately). (ix) 100 mm dia. medium quality 1x30.0m.

(vi) 50 mm dia. medium quality 1x90.0m.

Supplying M.S. male / female adopter of approved make and brand for coupling of M.S. pipe and fibre glass strainers, as per direction of the Engineer - in - Charge. (i) 100 mm

Supplying, fitting and fixing steel cutter piece upto 450 mm long with sockets. (ii) 50 mm dia.

Supplying, fitting and fixing plug of approved make conforming to I.S. specifications. (ii) 50 mm

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

Supplying, fitting and fixing G.I. cap at top (i) 100 mm

Supplying, fitting and fixing M.S socket ring. (i) 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. 3x3 days.

Labour for making arrangement for showing verticality test including the cost for hire charges of tools and plants, scafolding, labour etc. all complete.

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. 1x1.256

Packing annular 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. 1x3.454

Supplying, fitting and fixing 300 mm M.S. housing clamp of approved quality.

Providing 200 mm centre guide. i) With Clamp

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

Supplying P.V.C. water storage tank of approved quality with closed top with lid (Black) - Multilayer (b) 1000 litre capacity

Supplying, fitting and fixing G.I. pipes of TATA make with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple,longscrew, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads, fitting, fixing etc. complete in all respect including cost of all necessary fittings as required,jointing materials and two coats of painting with approved paint in any position above ground. (Payment will be made on the centre line measurements of total pipe line including all specials. No separate payment will be made for accesories, specials. Payment for painting will be made seperately) (A) For Exposed Work (ii) 15 mm dia. medium quality 1x65.0 m.

(ii) 20 mm dia. medium quality 1x75.0

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.). (viii) 20 mm dia.

Supplying, fitting and fixing gunmetal wheel valve of approved brand and make tested to 21 kg per sq. cm. (for water lines only). (viii) 20 mm dia

Supply,fitting,fixing of 1.50 HP 220 voit KSB make Submersible motor pump including control panel Box and 40.0 mtr. Finolex fit cable and other fittings. 3x2 nos.

Add GST@18% on Sl. No. 1 to 26

Add labour cess @1% on Sl. No. 1 to 27

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