Location: Jodhpur, Rajasthan
Total volume of rainwater harvested: Approx 21.1 million litres
The Umaid Heritage residential complex in Rajasthan is a private township located southeast of Umaid Bhawan. The site is located in the city of Jodhpur where the traditional watermanagement system is getting gradually destroyed due to modernisation and urbanisation. The water table at the site is still quite low in the range of 20-40 metres below ground level (mbgl).
TECHNOLOGY & DESIGN
Catchment area The entire area of the site acts as catchment area for the system to catch water. The rainwater is collected from the open areas through the natural slopes as well as from the roof top of houses which in turn are connected with natural slope of the site through drainage conduits. The nature of the catchment area is rocky with high runoff coefficient. The entry of rainwater is blocked from the inlet wall for first two flushes of rainfall to avoid debris and dust particles going to Bawari.
The RWH system captures around 21.1 million liters of rainwater reducing the dependence on municipal water supply or ground water extraction. The average cost of water tanker (10,000 liters per tanker) in Jodhpur is Rs. 800 – 10,000/-, thus by using the rainwater as alternate source of water about Rs. 2.36 million are saved annually. The rainwater harvesting system at the township collects 30 per cent of the potential rainwater on the site to maintain the green area in the complex by meeting its horticulture water requirements. Furthermore, the Bawari structure acts as a recreational space for inhabitants as well as storage of rainwater.
|Zonal Level: Case studies
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|Rainwater Harvesting System at Jamia Hamdard University New Delhi
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|Rainwater harvesting at Millennium Information Technologies Ltd., Malabe, Sri Lanka
|Rainwater Harvesting System at Umaid Heritage Housing Complex
|Decentralised wastewater treatment system at Aravind Eye Hospital, Pondicherry
|Decentralised Wastewater Treatment System at Kachpura village in Agra
|Decentralized Wastewater Treatment System for BEEDI Workers colony at neighborhood level
|Decentralised wastewater treatment system at Nabolok Colony, Khulna, Bangladesh
|Soil Biotechnology Treatment at Naval Dockyard Housing Society, Mumbai
|SBT plant at Vazir Sultan Tobacco (VST), Hyderabad
|Site Level: Case studies
|City Level: Case studies