Operation and maintenance of 0.35 MLD STP at w e f 15 June 2023 to 14 January 2024 07 months 7 days at STC BSF Bangalore SH Period From Oct 2024 to April 2025

Amount

Providing semi skilled Technicians for 02 Shift per day, all days of a month including Sundays and national holidays ) for operation and repair/maintenance of the sewerage treatment plant of 0.35 MLD capacity as per the directions of Engineer-in-charge. Working time will be continued in shift wise i.e. ‘A’ & ‘B’. (Per shift will be of 8 working hours) Shift – A - 6.00 AM to 2.00 PM, Shift – B - 2.00 P.M. to 10.00 PM

Providing Sweeper/Labour/beldar for 01 Shift per day, all days of a month including Sundays and national holidays) for cleaning of the sewerage treatment plant of 0.35 MLD capacity and connected sewer lines as per the directions of Engineer-in-charge. Working time will be 9:00 AM to 5:00 P.M.

Supply and mixing of sodium hypochlorite chemical with STP water as per requirement for maintaining the quality of discharge water in regular interval along storing in proper place etc completely as required.

Routine Maintenance (Cleaining, Oiling, Connections etc. ) of various type of Electrical Equipments for per day (Motors, Starters, Light fittings, panels & cable) as per the direction of the Engineer-in-Charge

Collection and testing of discharge water as per the direction of the Engineer-in-Charge

Repair, Servicing and routine maintenance of PSF (Pressure Sand Filter) & ACF (Activated Carbon Filter) including following scopes are taken complete etc. as required :- (A) Service of Pressure Filter Pebbles 2” x 11/2” (40mm) 11/2” x 1” (25 mm) :- 1” x ½” (20mm) & 1” x ¾ “ (16mm), Gravels 10mm & Gravel 8mm, Cross Sand-5.3mm filtering sand 16/32 fine sand. Qty of Sand: 40 mm :- 280-400 kg 25 mm - 200- 320 kg 20 mm :-180-250 kg 16 mm :- 150-200 kg (B) Service of Activated Carbon filter with fresh Media. Pebbles 2” x 11/2” (40mm), 11/2” x 1” (20mm), 1” x ¾ “ (16 mm), Gravels 10mm Corse Silex Carbon Qty of Carbon: 40 mm :-350-450 kg 20 mm :- 300-350 kg 16 mm :- 250-300 kg (C) Old Media Removal & New Fresh Media Filling (D) Disposal of Old Media at Outside of STP (E) 2” Multiport Valve

K YOGEESHWAR RAO