MAINTENANCE AND OPERATION OF PUMP HOUSE NO 4, SEWAGE INSTALLATIONS, CLEANING OF TANKS, SUPPLY AND DOZING OF CHEMICALS AND ALLIED WORKS IN THE INSTALLATION UNDER GE (AF) JORHAT

Amount

Maintenance & Operation of services for water supply pumping Installation at Pump House NO - 4, in three shift (0600 Hrs to1400Hrs and 1400Hrs to2200Hrs and 2200Hrs to 0600 Hrs) Each shift of 8 Hrs duration with one skilled operator per shift on all working days including sundays & holidays for pumping treatment and timely water supply to User's including daily and periodical maintenance, minor repair /replacement of spares of water supply installation plants and equipments ( Centrifugal Pump Set,3 Phase electric Motor,IR plant,DG Set 62.5 KVA,Chloronome plant,Power Panels control, Water reservoirs, Sluice valve/Gate valve/ Non return valve) in all respect complete all as specified and as directed by Engr-in -charge

Note : the cost for following routine/preventive measures of above equipment /Plant deemed to be included in the unit rates quoted against this item : (a) Pumping Set (i) Bearing lubrications (ii) Arresting Leakage on pump set control valves (iii) Replacement of gland packing (iv) Checking of coupling bolts, nuts etc. (v) Checking of Electric control panel such as tightening of electric connection etc. (vi) Maintenance of daily log sheet (vii) Cleaning of plants/equipment and plant room

(b) Filteration Plant/chorination/sedimentation Tank & Reservoir (i) Maintenance of control valve, replacement of gland packing & providing greasing as and when required. (ii) Routine back wash of pressure filter as & when required. (iii) Mixing and Checking proper dose of calciam hypochoride for cholorination. (iv) Recording of test results (v) Proper maintenance of running/ maintenance records as directed by Engr-in-Charge. (vi) Cleaning of bleaching doser and connected accessories. (VII) Repair/replacement of gasket joints of filters & welding to MS pipe to arrest leakages

(c)DG SET (i) Checking of oil level of Diesel Engine (ii) Checking of water level of the rediator of the DG set.. (iii) Checking of Electrolyte in the Battery, Battery terminals including providing grease as and when required. (iv) Checking of electric connection of alternator. (v) Checking battery charging with the existing battery charger. (vi) Checking carbon brushes of alternator including electric connection and out put voltage Note:- 1. Rate quoted for above item is included cleanning ,cutting grass ,bushes in the permises of Pump House. The height of grass/bushes not more than 1" at any time. 2. DHPP shall be used under Sch "B" free for operation. And Contractor have to collect Sch "B" items in advance from MES store yard

Maintenance and operation of service for Sewage plant for operating Sewage Pump Set and Taking out accumulated Solid Waste, Mud, Dirt, etc. with one skilled operator in one shift of eight hours (8.00 to 16.00 hours) on all working days, including Sunday & holiday as required complete all as specified and as directed by Engr-in-Charge. Location:ALFA MESS, NP/KARGIL AREA Note : Cleaning of sewage plant room pump set and pump room surrounding deemed to be included under this item.

Material and labour for Cleaning of RCC GROUND SEDIMENTATION TANK 40000 GALLON Capacity, Open Type, located at PUMP HOUSE No.4 by descanting with Water, Scraping Internal Surface and Bottom of the Tank with Mild Steel Scrubbers/Brush, Rubbing down Scale, Dirt, Sludge, etc, Washing with Clean Water Taking out and removing Mud, Dirts, Silts, Sand, Iron Deposits/Sludge, etc. from inside of the Tank and depositing at a distance not exc. 50.0 METRE away from the Tank, Washing Inner Surfaces with using Lime and Bleaching Powder and removing the same until Clean Surface is obtained including Cutting of Bushes, Plants, etc., Cleaning of Drains, surrounding Area up to 5.0 METRE, complete all as specified and as directed by Engr-in-Charge.

Material and labour for Cleaning of RCC clear water TANK 15000 GALLON Capacity, Open Type, located at PUMP HOUSE No.4 by decanting with Water, Scraping Internal Surface and Bottom of the Tank with Mild Steel Scrubbers/Brush, Rubbing down Scale, Dirt, Sludge, etc, Washing with Clean Water Taking out and removing Mud, Dirts, Silts, Sand, Iron Deposits/Sludge, etc. from inside of the Tank and depositing at a distance not exc. 50.0 METRE away from the Tank, Washing Inner Surfaces with using Lime and Bleaching Powder and removing the same until Clean Surface is obtained including Cutting of Bushes, Plants, etc., Cleaning of Drains, surrounding Area up to 5.0 METRE, complete all as specified and as directed by Engr-in-Charge.

Material and labour for Cleaning of RCC clear water TANK 7500 GALLON Capacity, Open Type, located at PUMP HOUSE No.4 by decanting with Water, Scraping Internal Surface and Bottom of the Tank with Mild Steel Scrubbers/Brush, Rubbing down Scale, Dirt, Sludge, etc, Washing with Clean Water Taking out and removing Mud, Dirts, Silts, Sand, Iron Deposits/Sludge, etc. from inside of the Tank and depositing at a distance not exc. 50.0 METRE away from the Tank, Washing Inner Surfaces with using Lime and Bleaching Powder and removing the same until Clean Surface is obtained including Cutting of Bushes, Plants, etc., Cleaning of Drains, surrounding Area up to 5.0 METRE, complete all as specified and as directed by Engr-in-Charge.

Taking down carefully electric driven centrifugal pump set 20HP capacity including MS channels frame from foundation after disconnecting GI pipes/main electric supply from motor starter panel and keeping the MS channel frame at site for repairs/painting and carrying the pump set to nearest repairing workshop and bringing back after repair work and refixing in position complete all as directed by Engr-in-charge.

Dismentling carefully centrifugal pump set 20HP capacity and taking out all serviceable and unserviceable parts and cleaning/removing all dust particles such as mould and moss etc re-assembling the same after greasing the ball bearing including necessary gaskets etc and replacement of unserviceable parts. Note :- Materials required for replacement will be measured and paid separately against following items.

Supply only Shaft sleeve DE/NDE

Supply only Ball Bearing No. 6306 Make : TATA/SKF/NBC

Supply only GM Bushing

Supply only Fan blade (PVC) as per sample

Supply only CI coupling set for centrifugal pump set including key lock and stud etc (as per sample).

Supply only Cast Iron impeller suitable for centrifugal pump DB 50/20 as per sample

Supply only Pump shaft S/S (DB 50/20) 20 HP capacity

Dismantling carefully centrifugal motor 20 HP capacity and taking out the burnt/worn coils from the slots of stator and other accessories such as ball bearing and rotor and cleaning the stator slots and rewinding the same with new supper enamelled copper winding with appropriate gauge, heating, varnishing with doctor beck's insulating varnish and re-assembling the same and testing comissioning complete al as directed by Egr - in - chrage.

Labour only for lifting/lowering of U/S 15 HP capacity submersible pump set from tube well after disconnecting the electric supply and taking out one by one all column pipes flanged type 80 mm/bore each or suitable size pipe length 6.15 mtr long keeping serviceable fittings in safe custody for reuse/removing U/S materials from site/ making good disturbed surfaces and carrying submersible pump set to nearest repairing workshop including bringing back after repair work and lowering the same after replacement unserviceable spare parts such as column pipes flanged type 80mm dia and fixing with new rubber gasket/nuts/ bolts/washers of suitable size etc. including connection of electric supply to motor, testing/commissioning etc. complete all as directed and specified by Engr-in-Charge. Note. : Replacement of Column pipes shall be measured and paid seperately.

Dismantling carefully submersible motor 15 HP capacity and taking out the burnt/worn coils from the slots of stator and other accessories such as ball bearing/bushing and rotor etc . including necessay cutting/grinding/drilling/machining works for fixing of spare parts and cleaning the stator slots and rewinding the same with new supper enamelled copper winding wire with appropriate gauge, heating, varnishing with doctor beck's insulating varnish and re-assembling the same testing complete all as specified and directed by Engr-in-Charge.

Galvanised iron column pipes heavy duty 80 mm dia bore, 6.15 M long each pipe both end threaded, fixed with two Nos galvanised iron flange on both end, including welding ( both inside and outside) and drilling holes on flanges as per existing size/ granding etc. Make : Jindal/Tata.

Dismentling carefully submersible pump 15 HP capacity and taking out all serviceable/unserviceable parts and cleaning/removing all mould/ moss/ foreign material scale and dirt etc. Re-assembling the same after greasing the ball bearing including necessary gaskets and replacement of underviceable spare parts all as directed . Note :- Materials required for replacement will be measured and paid separately against following items:-

Supply only Pump shaft suitable for submersible pump any type 6 to 8 stages 15 HP capacity. (as per sample)

Supply only Gun metal impeller Make- Calama

Supply only Impeller bushing , Make- Calama

Supply only Stage casing suitable for submersible pump 5/15 HP cap. Make- Calama

Supply only Carbon thrust bearing with pressure plate Make- Calama

Supply only Thrust bearing housing Make- Calama

Supply only Thrust bearing segment

Supply & Mixing/ Dozing of Alum Ferric( AL²O³ of 15% to 16% concentration) with water in proportionate way for acheiving proper sedimentation of water at all time at Pump Houses as directed by competent authority for better sedimentation process at above installations complete all as specifed & as Directed.

Supply & Mixing/ Dozing of Alum Crystal of approved quality with water in proportionate way for acheiving proper sedimentation of water at all time at Pump Houses as directed by competent authority for better sedimentation process at above installations complete all as specifed & as Directed.

Supply & Mixing/ Dozing of Unslaked Lime ( Ca[OH]²) in poly bag container of 9 KG of approved quality with water in proportionate way for acheiving proper sedimentation of water at all time at Pump Houses as directed by competent authority for better Purification/ sedimentation process at above installations complete all as specifed & as Directed.

Supply only calcium Hypochlorite min 70% 72% chlorine content in granular disinfectant for water treatement (drinking water and swimming pool) packed in 45 Kg each Drum suitable for human consumption Make :- Sree Rayalaseema / Acura Orrganic Ltd or as Approved by E-in-C's Branch.

Supply & Use of Bleaching Powder of approved quality for cleaning/ washing the balancing tank, areation tower during decaning/ refilling of fresh water in interval as directed by Engr In charge for better Cleanness areation tower or indicated places complete all as directed & specified.

Material and labour for Cleaning of Under Ground Sewage Sump of any Type and Size and Capacity by using Diesel Driven Sewage Pump Set and Taking out accumulated Solid Waste, Mud, Dirt, etc. or any Other Items (both Solid and Liquid) manually and removing to a distance exc. 50.00 METRE but not exc. 100.00 METRE and buried under Ground (minimum 300mm below Ground Level) and deposited at Pit including Excavation of Pits, Returning, Filling in and Dressing of Surplus Soils/round to Slope as required, complete all as specified and as directed. NOTE : Pumping Set and diesel for the pump set shall be arranged by the Con-tractor at his own Cost and arrangements for which Cost of the same shall deem to be included in the UNIT RATE.

Material and labour for PVC flexible hose pipe 80mm dia,heavy duty with MS clamps 80mm dia in both side suitable for using as suction pipe of sewage pump complete all as specified and as directed by Engineer-in-charge

Material and labour for Taking down carefully electric driven sewage centrifugal pump set 5/7.5 HP capacity including MS channels frame from foundation after disconnecting GI pipes/main electric supply from motor starter panel and keeping the MS channel frame at site for repairs/painting and carring the pump set to nearest repairing workshop including bringing back after repair/replacement and refixing in position complete all as directed by Engr-in-charge.

Material and labour for Dismantling carefully centrifugal motor 5HP capacity and taking out the burnt/worn coils from the slots of stator and other accessories such as ball bearing and rottor and cleaning the stator slots and rewinding the same with new supper enamelled copper winding with appropriate gauge, heating, varnishing with doctor beck's insulating varnish and re-assembling the same and testing comissioning complete al as directed by Egr - in - chrage.

Supply and replacement and testing of single phase preventer,415 Volt AC, 50 Hz including replacement internal copper wire connections for starter of suitable size complete all as specified and as directed by Engr-in-Charge.

Supply, Fixing, Installing, commissioning and testing boosting monoblock pump set 1 HP ,self priming type, 20/25 mm delivery and suction, single phase, 240 volt, 50 Hz having discharge 12.5 LPM at 20 Mtr head fixed on PCC foundation including necessary cable connection compete all as specified and as directed by Engr-in-Charge. Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

M/S KRISHNA CONSTRUCTION CO

M/s K R Construction Co

M/S RA ENTERPRISE

M/S DHAR AND DHAR

THE SUPPLY AGENCY

M/S SANTOSHI TRADERS

Bidder Name

M/s K R Construction Co

THE SUPPLY AGENCY

M/S DHAR AND DHAR

M/S RA ENTERPRISE

RAJIB AND CO

M/S SANTOSHI TRADERS

M/S KRISHNA CONSTRUCTION CO