NIT NO. 1129/PWD(BMC), DTED. 04.11.2025

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 enlarge. of 300 dia. (i) First 50 metres

(ii) Next 50 metres

(ii) Next 50 metres

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.) a ) 200 mm

Supplying, fibre glass reinforced Epoxy resin slotted of 1 mm slot width in 6.1m length of approved make and as per direction of the Engineer - in - Charge (c) 200 mm nominal dia (ii) 7.00 mm wall thickness

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

Packing the annular space between the out side of the tubewell pipes, strainer and the bore with pea size washed gravel of approved quality havin size of 2mm to 5mm approved by the E-I-C including labour and equipment.

Geophysical investigation of the acuifer by Electro-logging system with all tools and plants as necessay including supply of necessary report.

Washing and developing tube well with air compressor pump and engine for 8 (eight) hours continuous pumping per day with necessary arrange ments for testing the yield in gallons per hour with 'V' notch including labour charges for all tools and scaffolding as required.

Supply of bore well submersible pump, bore well size- 300x200 mm, pump type BPHA 384.02G, Motor type : BHC-153, Discharge : 50-110 M³/HR, Total head : 48-35 mtr., outer dia. Of pump NRV : 125, Motor rating :15 HP, Make : KSB.

Supply, Delivery at site 1.1 KV grade AI rmoured cable of size 3.1/2 core 35 sq mm confirming to 1554/7098(PT)

Laying of two cables upto 35 sq mm in underground trench in single tire formation (horizontal) the trench size 680 mmx 760 mm average depth, with brick protection on the top of the each cable with 8 (eight) nos per mtr and 4(four) nos bricks per mtr as separator between the bricks and cables and also trench to be filled up with shifted soil, levelling up and restoring surface duly remmed.

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture proof entry of XLPE/PVC cable for 3 1/2 core upto 35 sq mm.

Finishing end of XLPE/PVC armoured cables by crimping method incl. Supplying fixing solderless socket(dowels make), tapes, anti corrosive paste & jointing materials 35 sq.mm 3.1/2 core.

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.