Mother Dairy

Rainwater Harvesting Potential
Catchment area – 1, 57,700 square metres (sq m)
Average annual rainfall in New Delhi – 577.8 millimetre (mm)
Total water available from rainfall – 2,32,500 cubic metre (cum) or 23,25,00,000 litres

Rainwater Harvesting System
The rooftop rainwater and surface runoff is harvested using recharge wells and recharge trenches. The surface runoff from a catchment area of 10.52 hectares is harvested using 7 recharge trenches provided with recharge shafts of 36 metre depth and 150 mm diameter. The catchment also includes internal roads.

Apart from the recharge trenches, the factory has three recharge wells which harvest rooftop rainwater. The recharge wells are provided with recharge borewells of 25 metre depth where the layers of boulders, pebbles and gravel filter the rainwater before it is recharged to the sub soil. Two recharge wells were designed by INTACH and pressure filters are used to discharge the collected rainwater to the sub soil.

The rainwater harvesting structure was completed in the year 2002 at a cost of Rs 15 lakhs.

Impact: There has been an improvement in the water levels and the ground water quality.

Contact Person:
A K Khosla
Engineer, Department of Estates
Mother Dairy, Patparganj, New Delhi
Phone: (011) 22471991, 22477935

Project designed by:
Syed K. Mohiddin
Central Ground Water Board
Gallary No. 18/11, Jam Nagar House
Man Singh Road, New Delhi - 110011
Phone: 2338351
&
INTACH
71, Lodhi Estate
New Delhi-110003
Phone: 2463118
E mail: intach@del3.vsnl.net.in

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Marriott Welcome Hotel

Rainwater Harvesting Potential
Catchment area – 9000 square metres (sq. m)
Average annual rainfall in New Delhi – 611.8 millimetre (mm)
Total water available from rainfall – 43,420 cubic metre (m3) or 4,34,20,100 litres

Rainwater Harvesting System
A combination of storage and recharge systems has been used to harvest the runoff from the entire campus. The runoff from the terraces is stored in three concrete storage tanks of total capacity 8.3 lakh litres.

The stored water is used for various purposes which include domestic activities, flushing, boiler feeding, cooling tower and horticulture. Surface runoff is recharged to the sub soil using recharge wells.

The rainwater harvesting structure was completed at a cost of Rs 1.47 lakh.

Impact: There has been an improvement in the groundwater quality.

Contact Person :
Avtar Singh Walia
Marriott Welcome Hotel
District Centre, Saket
New Delhi - 110017
Phone: (011) 42661122

Project designed by:
Centre for Science and Environment
41, Institutional Area, Tughlaqabad
New Delhi - 110062
Phone: 29955124/125, 29956394
E mail:water@cseindia.org

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