ED/IIMC/NIT/1/19-20 /130 2nd call

Amount

Annual engineering maintenance and day to day operational activities of 3 nos. water treatment plants by providing professionally skilled plant operators on one shift basis for each plant throughout the week. The job includes routine maintenance of the system, routine operation, backwash of the filter units, regeneration of water softener plant as required depending upon usage and raw water hardness, water quality monitoring for treated water, monthly reporting of the plant status. (Payment will be made based on the numbers of day’s duty performed on no work- no pay basis.)

Providing consumable chemicals for use in the each WTP as per requirement or as directed on day to day basis. Regeneration should be done to maintain specific hardness of treated water in between 80 to 120 ppm or as directed by the Institute. (Payment will be made based on actual quantity of material consumed at site.)

Non Iodized Salt containing 99.5 % Sodium Chloride.

Sodium Hypochlorite solution 10% concentration (must be applied through chlorine dosing pump); Chlorine dosing pump should be provided and maintained by the contractor.

Providing hardness Testing kit and testing the hardness of treated water of each plant on regular basis with Reagent (A, B, S & R) and recording the results on the registrar.

Quarterly sampling and analysis of treated water samples from a NABL accredited laboratory duly approved by the Institute. (This item should be executed on specific instruction from the Institute.)

Cleaning, de-scaling, de-siltation and disinfection of the underground water reservoirs, overhead water reservoirs and the water supply main plumbing lines of different diameters and overhead water reservoirs of every individual building twice a year with required man power, materials and tool & tackles etc. The job should be carried out appropriately without any inconvenience to the residents and users of the campus and as directed by the Institute. For the water tanks/reservoirs the job should include mechanized dewatering, removal of the left over dirty water with sludge sucker pump, cleaning the walls, ceiling and floor by high pressure water jets to remove the entire scaling of mud, iron and calcination from the tank surface, removal of remaining sludge from the floor with the help of industrial vacuum cleaner, spraying of approved disinfectant and treatment of the inside tank by exposing UV radiation for eradication of bacteria. For the water supply plumbing pipe lines, the job should include removal of the joints of pipe line as required, cleaning by high pressure water jets or any other suitable method to remove the entire scaling of mud, iron and calcination from the inner surface, disinfection and re-fixing the pipe lines suitably making the joints and system completely leak proof.

Overhead and underground water reservoir of water treatment plant.( Two nos of OH, two nos of UG and one set of on ground water tanks)

Roof top water tanks of individual buildings.( around 102 tanks)

Water supply main plumbing lines from the water treatment plant to individual roof top tanks of different buildings.

N D INTERNATIONAL