PREVENTIVE/PERIODICAL MAINTENANCE, SERVICING OF VARIOUS E/M EQUIPMENTS INSTALLED IN WTP, PS TANK AND INTAKE POINT AND OTHER CONNECTED WORKS UNDER GE NARANGI

Material and labour for seven stage cleaning and sterilization of inside of Semi underground sump of capacity 15 Lakh gallon capacity at New WTP through bacteriological treatment by using chemical as approved by GE and ultra voilet ray including arrangement of necessary tools & plants, labour etc complete all as specified and as directed. Seven stages are as under follows :- (a) First stage is to drain out the water by using exit valve or own high capacity dewatering ststem. (b) Second stage is cleaning all the algae fromation inside the tank by using approved chemical as recommended by GE including scrubbing the walls of the tank. (c) Third stage is scrubbing the wall with mechanical scrubber and fresh water cleaning by high speed jet pump (rotary & flat) to remove all scalling, algae and other formed particles on internal surface of the tank completely. (d) Forth stage and first bacteria screening is sterilization by using approved chemical as recommended by GE. (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having maximum 1200W with sutable heavy duty rugged motor to free of any foreign and loose particles on any nature. (f) Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray by heavy duty UV radiation which shall have covering 360 degree of sterilization with the tank to kill all suspended bacteria. (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor and wall of the water tank by using oxidizing agent Bleaching powder or equivalent non- toxic bio- degradable eco friendly anti bacterial agent certified by Govt approved laboratory to disinfect the UG tank from all harmful pathogens complete all as specified and directed .

All as per item No. 1 Above but RCC Overhead tank at New WTP of capacity 1.00 Lakh Ltrs .

All as per item No 1 above but open type semi UG sump of capacity 5.00 Lakh gallon at New WTP include by complete washing out of old settled muddy sand, soil mixture (sludge), fine sludge etc and removal of settled sludge to a suitable distance not exc. 50mtr complete all as specified and as directed. The rate includes cleaning of walls from inside & outside walls, surrounding area, connected pipe lines and one coat of lime white wash inside tank complete all as specified and directed. (Note : 1. Cleaning of one UG sump be considered as one job . 2. Cleaning of Natural resources be carried out as per requirement on urgent basis).

All as per item No 3 above but Pre Sedimentation tank in Chandrapur open type of capacity of 16.00 Lakh Ltr of size (3m x 12m - 02 compartments) , (12m x 39m x 4m) include by complete washing out of old settled muddy sand, soil mixture (sludge), fine sludge etc and removal of settled sludge to a suitable distance not exc. 50mtr complete all as specified and as directed. The rate includes cleaning of walls from inside & outside walls, surrounding area, connected pipe lines, header & valves of various sizes painting and one coat of lime white wash inside tank complete all as specified and directed. (Note : 1. Cleaning of one 2 x Semi UG sump be considered as one job . 2. Cleaning of Natural resources be carried out as per requirement on urgent basis).

All as per Item No. 2 above but for Water Treatment plant capacity 13.5 MLD consisting of Step type Aierator, Rapid mixer, Alum Dosing sumps, Cleigestor, Clarifoculator , Chemical room, 02 Nos Filtration beds of cap 4 MLD, raw water passing drains, Sludge/back washing drains approx 60RM. The job also include two coat of synthetic enamel painting of pipe lines, MS structure in clarifoculator, gear boxex, MS mixer's incude valves of various sizes and white wash of filters beds & collection chamber include chemical store room complete all as specified and directed by Engineer-in-charge.

Material and labour for complete cleaning of outside upto water level surface, top of MS floating barage having G deck of size 9M x 6 M with wire brush (including mechinical rubbing to remove deposit scaling material, heavy rust) removing of mild scale and rust by application of rust removing chemical Sika Rustoff 100/ (or equivalent in make MYK Arment Pvt Ltd (ReArm Rust remover)/ Pidilite/ Thermax/ FOSROC) by brush and leave the surface to react for 15-30 Mins. Then the rusty surface will change their colour. After that remove the loose particles of rust by wire brush complete and painting with two coat of red oxide primer and one coat of synthetic enamel paint on all MS assy fixed on barage include painting of connected pumps, pipeline and valves as per existing colour code complete all as specified and directed .

Supply and fixing in repair to CI Detachable D joints of CI/DI/GI pipe of size 500 mm including rubber rings, nuts n bolts fixing on pipe for stop water leakages from pipe include rubber gaskets, nuts & boltrs complete all as specified and directed .. (Note: Earth work, cutting damaged DI pipe & T&P required to repair/arrest water leakage be incuded in the quoted rates)

Material and labour for periodical maintenance /servicing of Newely installed Diesel Engine Generator set of 250 KVA installed at Intake in Chandrapur & WTP in Narangi Mil Stn by taking down oil sump after draining unserviceable enigne oil from drain plug and storing in a container, cleaning the sump and refilling Engine oil, cleaning and servicing alternator of same capacity, running testing and refilling as top up for proper level, greasing the movable parts and cleaning complete body after repairing all oil / fuel leakages complete all as specified and directed. Note:- Servicing to be carried out by service engineer of OEM/auth rep of OEM & Engine oil shall be measured and paid separately under relevant item of this schedule.

Material and labour for periodical maintenance /servicing of Newely installed Diesel Engine Generator set of 1250 KVA installed make Cummins installed in PS Tank in chandrpur by taking down from oil sump after draining unserviceable enigne oil from drain plug and storing in a container, cleaning the sump and refilling Engine oil, running testing and refilling as top up for proper level, greasing the movable parts and cleaning complete body after repairing all oil / fuel leakages, replacement of Air filters, lube filters, fuel filter etc, servicing & testing and checking of all connections of alternator complete all as specified and directed. Note:- Servicing to be carried out by service engineer of OEM/auth rep of OEM & Engine oil and filters shall be measured and paid separately under relevant item of this schedule & any other minor works not included in the job but required at site for smooth running & servicing of DG set as per service engineer of OEM be included in the quoted rates.

Supply only engine oil grade 20W40 against 'B' check servicing and as per the capacity of engine model and as per manufacturers recommendation complete all as specified and directed .