WBTC/JMD/NIT-453/2023-24 (5th call)

Amount

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 100 mm dia. Tube well with top enlargement of 200 mm dia.(upto 50 metre).

(i) First 50 metre

(ii) Next 50 metre

(iii) Next 50 metre

Supplying, fitting and fixing PVC pipes 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, long screw, 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. For Exposed Work PVC Pipes.

a) 150 mm dia

b) 100 mm dia

Supplying high density polythene strainer of approved make with adapter conforming to I.S. specifications. 100 mm dia.

Supplying, fitting and fixing G.I. cap at top. 150 mm

Washing and developing tube-well with air compressor pump and engine for 8 (eight) hours continuous pumping per day with necessary arrangement 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 complete in all respect.

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

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

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

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

Supplying of ‘KSB’ make submersible Pump set , Model. CORA18C/14+UMAI 100 3.7/22, 5 HP , 440 VOLT with 3M lead cable.

Lowering KSB Make Submersible pump & motor with 50 mm dia G.I. Pipe up to depth of 36 m including necessary hire charges of all tools and tackles complete in all respects.

Supplying & fixing of Control Panel including DOL Starter. Make : C&S

Supplying & fixing of 240 V, 32 A, DP main switch on angle iron frame on wall. Make : Standard

Supplying &laying of 1.1 KV grade, 3 core, 2.5 sq.mm. Copper Cable for submersible pump. Make : Finolex / KSB

Supplying & fixing of 6 mm dia Polypropline rope. Make : Garware.

19.(III). 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 (L) Reducing Socket (mm X mm) 150 X 100

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). 50 mm dia. medium quality

Note: 1. Specification of the Individual item would be followed as per presidency circle schedule P.W.D. Govt. of West Bengal, currently in vogue. However, the payment would be made as per actual work done and joint measurement at site. 2. Steel and cement to be supplied by the agency at their own arrangement and the rate should be quoted accordingly, Cement-Lafarge, A.C.C., L & T, Ambuja, Ultratech brand to be supplied and steel - SAIL, SRMB, TATA brand to be supplied, if any. For Ready Mixed Concrete, any of the following brand should be used by the vendor; Ultratech / Lafarge / ACC / L & T. All challans copy of RMC, duly authenticated by the agency, have to be submitted to this Company. 3. All information regarding site conditions would be obtained before quoting their rates. 4. The security deposit shall be deducted by the company. The said security deposit shall be refunded on the expiry of six (6) months (as defect liability period) after completion of the work. Refund of security deposit shall not be allowed till the final bill has been prepared and passed. 5. The rate of GST will be effected separately, as applicable. 6. The IT and any other Tax, as applicable, would be deducted from the bill amount

SAMANTA AND COMPANY (BID ID -6385719)