Asansol Durgapur Development Authority Tender

Day to day Operation and Maintenance of Flush Mixer (1No), Clarifier (1NO), Aerator(1No), and gutter channel including preparation and dosing of Alum Solution to correct proportion after weighing alum, lifting alum of alum tanks and mixing alum solution as necessary, including operation and maintenance of Valves, Switchs, Gears, Electric Control Panels, Agitators including any other machinery installed as necessary for production of treated water by engaging skilled and experienced operators, licenced electrician, helpers, majdoors, plumbers, mechanist, welder etc. as may be necessary as per specification and direction of EIC for running the plant efficiently for the period of 16 Hrs. or as and when required including routine test of water daily or as per instruction of EIC. The cost includs necessary running maintenance work of minor charactor like bearing replacement, change of necessary couplings, bolts, rubber bush, maintenance of rail track, replacement of spikes, scrapping, cleaning, and repairing of walls venture flumes preventing from growing alge-moss and saline bore by applying bleaching powder supplied by agency. Repairing and maintenance of all units i.e. C.W.R. Filters, Clarifier, Flush Mixer etc. bearings, oil-seals, couplings, nut,bolts, bush replacement with the approval of EIC including cleaning, sweeping and disinfecting of all units as per direction of EIC.

Day to day Operation and Maintenance of one no vecum operated gaseous chlorination system capacity 1 .00 Kg/Hr at Mangalpur and one no vecum operated gaseous chlorination system capacity 0-.5 Kg/Hr at Ballavpur including all valves, switches, Electricals control panels and all other allied machinery for production of clear water and injection of gaseous chlorine solution to C.W.R. Skilled and experienced operators, helpers, majdoors are to be engaged as per direction and requirement of EIC, Minimum 400 Kg chlorin gas is to be supplied by the agency as required at their own cost. Maintenance of Machines, replacement of spare parts, running maintenance of panel boards etc. is to be done by the agency. Factory safety devices like Fire extinguisher, hand gloves, welding glasses (Black & White), helmets, electric shock proof hand gloves, First Aid devices are to be used. Cleaning and sweeping the units to be done properly every day as per direction of the EIC.

Day to day operation and maintenance of Rapid gravity Filter consisting of 6 Nos twin Filter beds of size 4.30 Mtr. X 3.30 Mtr. each section, 200 KL capacity wash water tank on the top of filter house, 2 Nos. of filling pump, 2 Nos, Air blower for back wash, necessary pipe lines and valves, filter controllers and gauges for filtering of water by engaging skilled and experienced water works supervisors, Licenced electricians, operators, helpers, majdoors, plumbers, mechanics, fitters, sweepers etc. as necessary including operation and maintenance of all valves, air blowers, instruments and electricals panels, control panels, back wash valves etc. including surface washing and back washing of filter beds as and when necessary as per specification and direction of Engineer - in - Charge, to run the plant efficiently for the period of 16 Hrs. as per direction of the EIC as and when required till the completion of water supply. The cost includes necessary running maintenance work like replacement of gland packing, spindle, rubber insertions, replacement of nuts & bolts, calibration and adjustment of instrument and control devices. Replacement & maintenance of bibcock, pressure cock, gate channels, and all valves, scrapping and cleaning of the filter beds. Running maintenance of motor control units, main distribution panel and lighting arrangement inside electrical control room at chemical house in the ground floor. Replacement of all existing filter bed (complete) without ant disturbance of the regualr water supply at least once in a year as per direction and satisfiction of the EIC.