De-silting and replacing existing filter media in the Rain Water Harvesting Unit at CRRI Staff Colony, Maharani Bagh, New Delhi 110065

Amount

Supply and Laying activated carbon charcoal in recharge pit of rain water harvesting unit including removal of existing layer of same thickness placed in the unit and disposed off the same within 50 mtr. Lead. Complete as directed by Engineer-In Charge.

Supply and Laying sand of size 1.5 mm to 2.00 mm in recharge pit of rain water harvesting including removal of existing layer of same thickness placed in the unit and disposed off the same within 50 mtr. Lead .Complete as directed by Engineer -In-Charge.

Supply and Laying brick agreegate (40-63 mm) in recharge pit of rain rain water harvesting including removal of existing layer of same thickness placed in the unit and disposed off the same within 50 mtr. Lead Complete as directed by Engineer-In-Charge

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved. Measurement of the rubbish / malba / similar unserviceable, dismantled or waste materials will be done on actual cubical content of the basic items and not as per the number of trip.

Pumping out water caused by springs, tidal or river seepage, broken water mains or drains, Rain water Harvesting Unit and the like.

P/F M.S frame & sheet flag- sign board size 0.90X 1.20 mtr approx as per drawing, consisting of the ISA 60x60x5mm in the frame work and 2mm thick MS sheet spread over top flag position securely held in position with welding etc primering and painting of complete sign board both side and Lettering/Logo by paint in all size and shape .After framing the sign board the same is fixed in the ground with Cement concrete blocks of 300x150x150mm size anchor block of mix M-15. Complete as directed by the Engineer-in-charge.

P/F M.S frame & sheet flag- sign board size 0.50X 0.80 mtr approx as per drawing, consisting of the ISA 60x60x5mm in the frame work and 2mm thick MS sheet spread over top flag position securely held in position with welding etc primering and painting of complete sign board both side and Lettering/Logo by paint in all size and shape .After framing the sign board the same is fixed in the ground with Cement concrete blocks of 300x150x150mm size anchor block of mix M-15. Complete as directed by the Engineer-in-charge.