REPAIR/MAINT OF EXTERNAL WATER SUPPLY LINE, PUMPS, AIR COMPRESSOR AND OTHER E/M EQUIPMENTS AT PUMP HOUSE AND CLEANING OF UG SUMP, OH TANK AND SERVICE TANK AT NMS INDER AGE (I) NABAGRAM

Amount

Excavation in trenches,n exc 1.5 m wide and n exc 1.5 m in depth; for foundation laying of Pipes/cables ,etc or for shafts,wells,cesspits,manholes,pier holes,etc. n exc 10 sqm on plan and n exc 1.5 m in depth and getting out in soft/lose soil complete all as specified and directed.

Returning, filling in including spreading,levelling, watering and well ramming in layers not exceeding 25 cm thick in soft/loose soil under floor complete all as specified and directed.

Removing excavated materials not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

Material and labour boring of horizontal holes /trenchless hole for 50 mm bore pipe under the road below 1.50 mtr from the road/hard surface by trencheless technology using ultrasonic technique and including necessary machine without damaging the existing road and getting out in any type of soil and disposal of soil to a distance not exceeding 50 m from the site of work all as directed. Note: Pipe Shall be measured and paid seperately.

Taking out the defective column pipe from borewell and disconnecting the all fitted items nut, bolt and washer etc as directed by Engineer in charge.

Taking up old deteriated/leakage/chocked GI pipes & connected defective GM gate valves/ stop valves etc. of any size from trenches/ floors of size upto 80 mm dia and after repair refix again existing location complete directed by Engr-in-charge. Note - Excavation, R&F all inclusive in quoted rate.

All as per item no 5 here in above but size 40 mm bore.

All as per item no 5 here in above but size 25 mm bore.

Supply and laying galvanised iron pipe of size 80 mm bore of medium grade with all tube fittings ( such as bends, elbows, tees, short pieces of medium grade , connectors, back-nuts, caps, plugs and unions etc.) laying in trenches/ floors/ ducts and also cutting pipes, screwing, and for making forged bends on piping as required including and complete all as specified and directed.

All as per item no 10 here in above but size 50 mm bore.

All as per item no 10 here in above but size 40 mm bore.

All as per item no 10 here in above but size 25 mm bore.

All as per item no 10 here in above but size 20 mm bore.

Supply and fixing the Gate valve 50mm bore dia. Gun-metal, gate valves, with iron wheel head, screwed both ends on G.I pipes with GI union, including removing old unserviceable ones all as specified and directed.

All as per item no 14 here in above but of size 40mm bore.

All as per item no 14 here in above but of size 25mm bore.

All as per item no 14 here in above but of size 20mm bore.

Supply and fixing ERW MS column pipes 80 mm dia both end flanged, heavy duty 3 Mtr long, 5.8mm thick conforming to IS-4270-1992 including taking out of existing old rusted and threaded out column pipes from bore well including testing complete all as specified and directed.

M & L for cutting, screwing existing steel tubing of size 80 or 100 mm bore diameter for aleration or addiation (or lengthening screw on pipe to from connector) and relaying/ refixing to its new/old position complete all as specified and directed by the Engr-In-Charge. Note- Excavation & RF include in quoted rate.

All as per item No. 19 but existing steel tubing of size 40 or 50 mm bore diameter complete.

M & L for one coat of painting (Existing colour paint) to expose D I pipes externally (i.e. Inlet & outlet Pipes of water Tanks,) at pump houses duly preparation the surfaces by using Black bituminous paint complete all as specified and as directed.

S & F MCCB 160 Amps, 4pole, 415volt, 36 KA breaking capacity including taking down the existing unserviciable MCCB with all the necessary electrical connections, all as specified and as directed.

Supply & laying in repair in trenches of XLPE UG cable insulated aluminium stranded conductor served with an inner sheathing or PVC tape armoured GI steeel strip and overall PVC sheathed nominal cross sectional area 25 sqmm 4 core and testing complete all as specified and directed.

Supply and replacing of PVC insulated and PVC sheathed submersible cable of 6 Sqmm 3 core multi stranded copper conductor.

M & L strip opening of submersible motor of capacity 10 HP and taking out burnt out windings . Cleaning of motor rotor and stator with cleaning material. Carrying out necessary machining work such as grinding, metling and polishing . Rewinding of motor with stove enamelled copper wire of existing gauge . Repalcement of unserviceable parts bush as required. Assembling of motor and testing complete to the satisfaction of Engineer-in -Charge.

All as per item No. 22 but size 7.5 HP complete.

All as per item No. 22 but size 6 HP complete.

M&L for attending to break down of water supply pipe line size up to 200 mm CI/DI/MS/GI bursting/cracks including removal of broken pipe pieces of various lengths through gas cutting/manual cutting as per site requirement including burning the defective tyton joint/lead joints and removing out the damaged CI/DI/MS/GI pipe and inserting necessary specials such as DI/CI collar, MS Clamp, tyton joint etc. as required at site and providing of new lead joints/tyton joint/D Joint/MS Clamp as required at site, including testing for the leakages complete all as specified and directed by Engineer-in-Charge NOTE: 1) The earth work involved for excavation, returning filling & removal of soil is deemed to be included inquoted rates. 2) Welding / plumbing works involved for repairing of pipe lines and necessary T&P like welding machine, threeding dise etc including man power is deemed to be included in quoted rates. 3) Transportation charges for shifting of T&P etc is deemed to be included in above quoted rates.

Taking of water sample from the borewell and send to the laboratory for testing of water and submit the report complete all as specified as directed,Note: during contract per month water testing has been carried out min 6 times.

M&L for cleaning of RCC under ground sump of capacity 60000 Ltr by removing sludge, mud or any other foreign material from the bottom and internal surface of the tank by wire brushing, cleaning with fresh water bailing out complete water with pump sets, washing internal surface with sufficient quantity of water and bleaching powder (0.10 Kg of bleaching powder will be mixed in 1 ltr of water) finally applying two coats of lime washing on entire internal surface, writing the date of cleaning and capacity of the tank with white synthetic enamel paint on black background with synthetic enamel paint complete all as specified and directed.

M&L for cleaning of over head water tank of capacity 100000 Ltr at 12 mtr height by removing sludge, mud or any other foreign material from the bottom and internal surface of the tank by wire brushing, cleaning with fresh water bailing out complete water with pump sets, washing internal surface with sufficient quantity of water and bleaching powder (0.10 Kg of bleaching powder will be mixed in 1 ltr of water) finally applying two coats of lime washing on entire internal surface, writing the date of cleaning and capacity of the tank with white synthetic enamel paint on black background with synthetic enamel paint complete all as specified and directed.

M&L for two coats of synthetic enamel paint after preparation of surface of external side of iron removal plant of capacity 8000 GPH & all as specified and directed.

Supply only bleaching powder of grade confirming to IS-1065-1989 (2nd Revision) minimum markable chlorine 33.5% by mass packed in HDPE bag of 25 Kg capacity ISI marked complete all as specified.

Disconnecting all cable/wiring from Chemical dosing pump after that Repairing/ serviceing of chemical dosing pump complete and replace such parts of dosing pump- (i) Oil ring - 02 Nos (ii) Copper winding 1 HP motor - 01Nos (iii) Copper winding 0.5 HP motor - 01 Nos (iv) Bearing - 04 Nos Make of Dosing Pump - King & make of motor (ABB).

Disconnecting all cable/wiring from air compressor after that completely servicing of compressor and lubricate all moving parts like bearing,piston ring etc,alignment of pully,change compressor oil and cleaning outer surface of air compressor and replace such part of air compressor- i) Bearing - 4 Nos ii) Piston Rings - 6 Nos iii) Winding of motor- 01Nos IV) 'V' belt - 02 Nos vi) Air filter- 01 Nos. Make of compressor - Crompton Greaves with 200Ltr capacity air tank and 5 HP motor.

Supply only Alum of 50 Kg packet to purify the raw water at the pump house complete all as specified and directed.

M & L Construction of brick massonry valve pit chamber of inner dimension 100x100x100 cms suitable for sluice valves upto 100mm size, with PCC (1:4:8) type D-2 for foundation, brick work in cm (1:6) rendering (1:4), 15mm plastering, coping in PCC (1:2:4) type B-1, incl necessary earth work, including MS sheet cover of thickness 2 mm on 50x50x6.0 mm angle iron framework including two coats of synthetic enamelled paint over a coat of red oxide primer with making provision of locking arrangement including demolished old valve pit and including earth work, excavation removing the debris from the site or all as specified and directed.

Supply & fixing brass ball valve with steel handle, high pressure, with polythene float and flynut complete,screwed for iron pipe ISI Marked, as per IS: 778 of size 20 mm bore including taking out unsv gate valves complete all as specified and as directed at site by the Engr-in-Charge.

All As per Srl Item No 36 above but of size 25 mm bore.

M&L for cleaning of PVC/RCC water tank upto 500Ltr capacity by mud or any other foreign material from the bottom and clean internal surface of the tank with hard rough cloth after that cleaning with bleaching powder mixed water (0.10 Kg of bleaching powder will be mixed in 1 ltr of water) , writing the date of cleaning complete all as specified and directed.

All As per Srl Item No 15 above but of size 1000Ltr

Supply only Sodium Hypochlorite packed in 45 Kgs plastic drums for water treatment chemical each all as specified and directed by Engr in charge. Make: E-in-C's approved make/Equivalent Eastern Command approved make.

S&F in replacement of rotational moulded polye?thylene water storage tankscapasity 500Ltr (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I

All As per Srl Item No 43 above but of size 1000Ltr complete.

S&F in replacement of rotational moulded polyethylene water storage tank cover capacity 1000Ltr fixed in position all as specified and directed.

SAI ENGINEERING (BID ID -3507027)

M/S ABHINABA ENTERPRISE (BID ID -3509609)

Abida Enterprises (BID ID -3519488)