WBPWD/AE/NRSH/NIT-24/2025-26_1

Labour and hire charges of machineries for tank cleaning operation by submersible water pump to drain out excess water, removal of sludge by suction process by using machine, cleaning of walls, ceiling and floor by high jet machine rubbing all walls by rotary jet machine and cleaning the corners by plain jet machine, removal of deposited sludge by vacume suction machine, after doing the same disinfecting operation to be done by spraying biodegradable, antibacterial, non toxic agent like H202 (Hydrogen peroxide) of volume 8.48% as per IS specification and spreading about free chemical agent like TRENDS DEO (1:003 milliliter) and finally treatment of UV radiator to all walls and floor for at least 5 minutes including collecting sample of water for bacteriological and chemical test from any depth at any time during execution of work(minimum 6 nos sample of water)The work shall be completed in all respect. The rate shall be included of all tackles, tools & plants, labour and consumable materials including transformation charges and removal of all machineries after completion of job.

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