Haryana Urban Development Authority (HUDA) has made rainwater harvesting mandatory in all new buildings irrespective of roof area. In the notified areas in Gurgaon town and the adjoining industrial areas all the institutions and residential colonies have been asked to adopt water harvesting by the CGWA.
Which is the first state in India to have made rooftop rainwater?
Tamil Nadu was the first state to make rainwater harvesting compulsory for every building to avoid groundwater depletion. The project was launched in 2001 and has been implemented in all rural areas of Tamil Nadu.
Which city of India is doing rainwater harvesting?
One of the solutions to the urban water crisis is rainwater harvesting – capturing the runoff. This is practiced on a large scale in cities like Chennai, Bangalore and Delhi where rainwater harvesting is a part of the state policy.
Which states in India practice rainwater harvesting?
The states, which have taken up rainwater harvesting and groundwater recharge programs on a large scale, are Gujarat (North Gujarat, Saurashtra and Kachchh), Rajasthan, Maharashtra, Tamil Nadu, Karnataka, Andhra Pradesh, Madhya Pradesh, Orissa and Chattisgarh.
How can we save rainwater in India?
There are two major techniques of rainwater harvesting.
- Surface runoff harvesting. In this method, rainwater flows away as surface runoff and can be stored for future use. …
- Groundwater recharge. Groundwater recharge is a hydrologic process where water moves downward from surface water to groundwater.
How can rainwater be harvested in India?
Common Methods of Urban Rainwater Harvesting
- Surface Runoff Harvesting. Surface runoff harvesting is the most suitable method in urban clusters. …
- Rooftop Rainwater Harvesting. Rooftop rainwater harvesting is the most popular of all harvesting options in urban areas. …
- Recharge Pits.
Which state has maximum rainwater harvesting?
Tamil Nadu leads in rainwater harvesting.
Where is rain water harvesting done?
In urban areas, rainwater can be collected from the roof, paved and unpaved areas of a house, a block of flats, a colony, a park, a playground, parking areas, schools, office complexes lakes and tanks. There are two ways of using the harvested rainwater: Storing in receptacles. Recharging into the aquifer.
Is rooftop rain harvesting is a good method of water condensation?
Rooftop Rain Water Harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs. Harvested rain water can be stored in sub-surface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks.
How many methods of rainwater harvesting are there?
There are two ways of harvesting rainwater, namely; surface runoff harvesting and rooftop rainwater harvesting.