SURYA VIHAR APPARTMENTS | Centre for Science and Environment


SURYA VIHAR APPARTMENTS

SURYA VIHAR RAINWATER HARVESTING SYSTEM


RAINWATER AVAILABLE FOR HARVESTING
Total rooftop and surface area: 44,029square metres (sq m)
Average annual rainfall in Gurgaon:  577.8 millimetres (mm)
Total volume of rainwater harvested:  18,207 cubic metres (m 3 ) or 1,82,07,031 litres
Therefore, 85 per cent of the total rooftop and surface runoff is being harvested. 
 
WATER SUPPLY SOURCE
The water requirement is fulfilled by four tubewells located in the premises and supplemented by municipal supply. 
Around 5.5 lakh litres of water is used for daily requirements. 
 
RAINWATER HARVESTING SYSTEM
Rooftop rainwater harvesting: Rainwater from the Row Houses and the Club building is flown into the storm drain that runs parallel to the northern boundary wall. The rainwater from the rooftops of B, C, D, E and G block along with the surface runoff from the paved area is flown into the storm drain. This water is harvested by constructing nine percolation pits within the storm drain or diverting water to nearby recharge wells at strategic locations. These pits are also provided with a recharge bore of 150 mm diameter and 10 m depth to facilitate the recharging of water into the subsoil strata.
 
Surface runoff harvesting: Surface runoff generated from the roads along with rooftop rainwater from B, C and D block used to cause water logging for hours unless pumped out near the abandoned gate. This water is now recharged through 4.5 m long, 1 m wide and 2 m deep recharge trench at the gate. The trench is provided with two recharge bores of 150 mm diameter and 18 m depth. Layers of pebbles and boulders inside the trench ensure better filtration. 
The implementation was completed in August 2002 and the groundwater level, as in February 2004, was around 48.3 m below ground level (bgl). 
The total cost incurred: Rs 0.65 lakh
 
RESULTS OF MONITORING

  • Water level trend 2003-2010 
  • Water level 2006   
  • Water level 2005 
  • Water quality 2005 
  • Water level 2004 
  • Water quality 2004 

Water level trend 2003-2010

 
Water level 2006

   
Water level 2005

 
Water quality 2005

 
Water level 2004

 
Water quality 2004

 
 
For Details:
Rajnish Bahel 
President, RWA
A-6, Row House, Surya vihar, 
Kapas Hera, Gurgaon 
Ph-011-26859346/47, 
Email: rajnish.bahel@vships.com

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