Provision of Water Supply Scheme at COB Chieswema of 45 Assam Rifles

SCHEDULE ‘A’ PART-I (WATER SUPPLY SCHEME AT CHIESWEMA)

M/L for carrying out Geo physical survey for ground water exploration for electrical resistivity technique at different location spread at suitable intervals to find out delineation of lithological features of area thickness of layers and most favoragle site for ground water strata based on geo-logical parameters and deposition of sub surface formation aquifer upto the depth of 200 Mtrs and submit a detailed report in regards (02 spot in each location)

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, upto 90 metre depth below ground level. All type of soil, 300 mm dia

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer -in-charge, beyond 90 metre & upto 150 metre depth below ground level.Rocky strata including Boulders, 300 mm dia

Supplying, filling, spreading & leveling gravels of size range 5 mm to 10 mm, in the recharge pit, over the existing layer of boulders, in required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge.

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 mild steel screwed and socketed/plain ended casing pipes of required dia, conforming to IS: 4270, of reputed & approved make, including painted with outside surface with two coats of anticorrosive paint of approved brand and manufacture, including required hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge. 200 mm nominal size dia having minimum wall thickness 5.00 mm

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 plain slotted (having slot of size 1.6/3.2 mm) mild steel threaded and socketed/ plain bevel ended pipe (type A) of required dia, conforming to IS: 8110, of reputed and approved make, having wall thickness not less than 5.40 mm, including painted with outside surface with two coats of anticorrosive bitumestic paint of approved brand and manufacture, including hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer -in-charge.200 mm nominal size dia.

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of: 200 mm dia.

Providing and fixing M.S. clamp of required dia to the top of casing/ housing pipe of tubewell as per IS: 2800 (part I), including necessary bolts & nuts of required size complete.200 mm clamp.

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I).300 mm dia

Supply and Anchoring of 8 mm steel rope of 3 mm having PVC Sleeve above the steel rope for anchoring of submersible pump complete anchoring into the tubewell securely etc complete as directed by E-I-C.

Supply and installation of submerisble pump starter unit with necessary connected items as per Manufacturer Instrs. To be run the pump capacity upto 3 HP Submerisble pump (Make : Kirloskar, Havells, Seimens)

Supply and fixing 4 sqmm 3 core copper flat cable copper cable weather proof suitable for submersible including necessary connected items as per siter requirement will be provided as per direction of Engr-In-Charge (Make : Havells/finolex/Polycab)

Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc.40 mm dia nominal bore metre (Borewell down pipe)

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work 32 mm dia nominal bore metre

Providing and fixing gun metal non- return valve of approved quality (screwed end) :40 mm dia : Vertical

Providing and fixing gun metal non- return valve of approved quality (screwed end) :32 mm dia

Providing and fixing of Brass float valve 32 mm with ball with fittings complete.

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank. (Make : Sintex, Rotax, Tusker, Qutone or equivalent)

Supply, installing, testing and commissioning of 15 HP 3 Phase 415v, 10 Stages pump with motor with necessary protection and mechanical seal etc complete connection. Technical specification (Pump) (a) Type of pump : Multistage, (b) No of stages : 10 stages (c) Discharge capacity : 6.5 Cum/LPH (d) Total Head 250 Metre (e) Rated speed : 2925 (f) pump efficiency : 50% (g) Suction and delivery size : 40 mm x 32 mm (h) Base : MS Fabricated (j) Motor rating : 11 KW/15 KW, Motor RPM 3000 (k) Motor : 3 Phase / 11 KW.

Supply, installing, testing and commissioning of Star Delta Starter for 15 HP 3 Phase 415V, 10 stages pump complete connection.

SCHEDULE ‘A’ PART-II (PCC PLATFORM OF PVC WATER STORAGE TANK)

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including getting out and disposal of excavated earth upto 50 m and lift upto 1.5 m, as directed by Engineer-in- Charge: All kinds of soil

Supplying and Laying, spreading and compacting stone aggregate of specified sizes. 90 mm to 45 mm size stone aggregate.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)