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DELHI
GYMKHANA CLUB’S RAINWATER HARVESTING SYSTEM
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RAINWATER AVAILABLE FOR HARVESTING
Total rooftop and surface area: 1,13,344 square metres (sq
m)
Average annual rainfall in Delhi: 611 millimetres (mm)
Total volume of rainwater harvested: 28,765.8 cubic metres
(m 3 ) or
2,87,65,849.4 litres
Therefore, 43 per cent of total rooftop and surface runoff
is being harvested.
WATER SUPPLY SOURCE
Five tube wells located in the premises coupled with municipal
supply. On an
average, 4 lakh litres of water is consumed daily for potable
and non-potable
purposes.
RAINWATER HARVESTING SYSTEM
The rooftop rainwater from the main club building, library,
committee room,
secretary office and cottages is flown down to the ground
and then taken to the
storm water drain. The storm water drains are intercepted
at strategic locations
and rainwater is diverted into recharge wells. The recharge
wells are 2.5 m x 2 m x 2 m in size. To facilitate groundwater
recharge, a bore of 150 mm dia and 15 m depth is provided
in all structures. Layers of boulders, pebbles and coarse
sand filled inside the recharge well ensures proper filtration
of harvested water.
Implementation of this project was completed in May 2004,
and the groundwater level, as in January 2005, was around
14.1 m below ground level (bgl).
Cost of the rainwater harvesting system: Rs 0.8 lakh
For Details:
Col V K Mahajan
Assistant Secretary
Delhi Gymkhana club
2, Safdurjung Road,
New Delhi
Phone-23015531-35 Ext.117, 9810829080
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NATIONAL
