Operation, maintenance and upkeepment of 0.55 MGD SWTP at Gaburcherra for a period of 365 days including mtc. of electrical accessories, rewinding motors, mtc. pump and providing materials under DWS Sub-Division, Belonia during the year 2025-26.

Operation of plant by deploying pump operator and helper for operation of Intake Well, chlorinator, clari-floculator, alum dosing, back washing & cleaning of total plant as per requirement in/c operation of s/valves as per direction of the Engineer-in-charge.

i) Pump Operator (2 Shift) 1 (One) Pox 2 (Two) shift x 365 days = 730 Days

i) Helper (2 Shift) 1 (One) Pox 2 (Two) shift x 365 days = 730 Days

Providing salt for generation of chlorine solution (hypo) as per direction of the Engineer-in-charge.

Providing lime for maintaining ph value in raw water as per direction of the Engineer-in-charge.

Rewinding of Motor suitable V.T. pumps by complete dismantling in/c providing & rewinding with Super enamelled copper conductor (as per IS : 13730 Part-3 ) conductor & all necessary spare parts and assembling the same including servicing of rotor & necessary trial run as per specification and direction of the Engineer-in-charge. i) 50-65 HP

Rewinding of Horizontal Motor suitable for centrifugal pumps by complete dismantling in/c providing & rewinding with Super enamelled copper conductor (as per IS : 13730 Part-3 ) conductor & all necessary spare parts and reassembling the same including servicing of rotor & necessary trial run as per specification and direction of the Engineer-in-charge. i) 0.5 - 1.5 HP

Providing and fitting fixing of spare contact kits without Coil (L & T make) for Auto Star Delta Starter. a) ML-2 type.

Providing and fitting fixing of standard operating Coil (L & T make) for Auto Star Delta Starter. a) ML-2 type.

Supplying and fitting fixing of Thermal Overload Relays (directly operated& direct mounting on ML-2/3 Contactor) having relay range 9-14A/13-21A of L & T made. (Suitable for ML-2/ML-3 type).

Supplying and fitting fixing Electronic Timer Type ST-100 (L & T make) suitable for 240/300/415V, 50 Hz having ranges for 3-30 Secs/12-120 secs.

Repairing line / top shaft of different capacity V.T. pumps by welding, grinding, threading, centering etc as per specification and the direction of the Engineer-in-charge.

Repairing of V.T. pumps by providing and replacing of Rubber bush for bowel ( conforming to IS : 1710 ) as per specification and the direction of the Engineer-in-charge. i) for 62500 / 65000 / 75000 GPH capacity V.T. Pump

Repairing of V.T. pumps by providing and replacing of G.M. bush for bowel ( conforming to IS : 1710 ) as per specification and the direction of the Engineer-in-charge. i) for 62500 / 65000 / 75000 GPH capacity V.T. Pump

Repairing of V.T. pumps by providing and replacing of G.M. bush for suction case / discharge case ( conforming to IS : 1710 ) as per specification and the direction of the Engineer-incharge. i) for 62500 / 65000 / 75000 GPH capacity V.T. Pump

Repairing of V.T. pumps by providing and replacing of MS lock ( conforming to IS : 1710 ) as per specification and the direction of the Engineer-in-Charge. i) for 62500 / 65000 / 75000 GPH capacity V.T. Pump

Cleaning of deposited sand, clay etc from the intake well both inside and outside by manual means with necessary staging etc. as per direction of the Engineer-in-charge.

Cleaning of the Sedimentation tank & Clarifloculator of Water Treatment Plant. complete job as per direction of the Engg-in-Charge.

Cleaning of all other chamber except clariflocultor (Filter Bed/Aeriator/clear water Chamber/Lime and alum Chamber) complete job as per direction of the Engg-in-Charge.

Charges for lifting of pump, motor, column pipe etc. from intake well and stacking the same at suitable place as per specification and the direction of the Engineer-in-charge.

Providing and fitting fixing with PVC insulated single core multistrand Copper cable conforming to IS : 694 for inter connection with all electrical equipments of the pannel board as per specification and direction of the Engineer-in-charge.

i) 25 sqmm

ii) 35 sqmm

Providing and fitting fixing of Fully utomatic Star Delta type Motor Starter (3 Ph. 50 Hz, 415 V, in Stell Sheet Enclosures with Contractors and Timer etc. complete suitable for Submersible Pump L & T, BCH, ABB make as per specification and direction of the Engineer-in-Charge. iii. 75 HP/ 55 kw Relay range within 45-75 + 10%

Providing & supplying of Kit-kat Rewireable Porcelain Fuse (Cut-Out) carrier & base of Havell's made ( Delux Quality)

a) 63Amps/415 Volt

b)100Amps/415 Volt

Supplying bamboo (1st class) 85 mm to 100 mm dia and making shoe with end tappered upto 300 mm from the bottom of the bamboo as per drawing and specification.

Handling and driving bamboo (1st class) 85 mm to 100 mm dia upto the length required by heavy hammer as per drawing and specification.

Providing and fitting, fixing bamboo (1st class) 85 mm to 100 mm dia for horizontal, diagonal bracing, strut etc. With nails / spikes and binding wire (GI 2.00 mm) as per drawing and specification.

Providing and placing gunny/ polythene (of minimum wall thickness of 500 micron) bags filled with sand (of minmum qty of 0.034 cum) and properly manually stitched to avoid any leakage of sand as per specification.

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