Rainwater Harvesting

Rainwater harvesting (RWH) is a simple method by which rainfall is collected for future usage. The collected rainwater may be stored, utilised in different ways or directly used for recharge purposes. With depleting groundwater levels and fluctuating climate conditions, RWH can go a long way to help mitigate these effects. Capturing the rainwater can help recharge local aquifers, reduce urban flooding and most importantly ensure water availability in water-scarce zones. Though the term seems to have picked up greater visibility in the last few years, it was, and is even today, a traditional practice followed in rural India. Some ancient rainwater harvesting methods followed in India include madakas, ahar pynes, surangas, taankas and many more.

This water conservation method can be easily practiced in individual homes, apartments, parks, offices and temples too, across the world. Farmers have recharged their dry borewells, created water banks in drought areas, greened their farms, increased sustainability of their water resources and even created a river. Technical know how for the rooftop RWH with direct storage can be availed for better implementation. RWH An effective method in water scarce times, it is also an easily doable practice. Practical advice is available in books written by Indukanth Ragade & Shree Padre, talks by Anupam Mishra and other easy to follow fun ways

Read our FAQ on Rainwater Harvesting and have many basic questions answered.

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Hello,

Need rain water harvesting system details to implement in a four floor apartment in Surat, Gujarat. Also, would like to know is there any subsidy offered for implementing RWH.

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I am staying in an apartment and the existing bore well is yielding less compared to earlier days. When it rains we have made provision to collect the water in the premises.

Need technical support/suggestions to channelize the rain water to the existing borewell and recharge it.

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This report by the United Nations Development Programme (UNDP) presents strategies for inclusive rural development embodying the principles of environmental sustainability.

This report by the United Nations Development Programme (UNDP) presents strategies for inclusive rural development embodying the principles of environmental sustainability. It recommends measures needed to achieve green, including measuring and tracking, the use incentives and the building of capacities. It also contains a number of case studies showing how green results can be achieved.

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Kerala is a rain blessed state in the country, but due to its slanting topography there is significant decline in the ground water levels leading to severe water scarcity. This paper sheds light on groundwater quality issues in two panchayats of Kerala

Kerala is a rain blessed state in the country. It has highest  number of wells, when compared with other states. However due to its slanting topography there is significant decline in the ground water levels leading to severe water scarcity during summer months in most districts of the state. Further over extraction and dependence of groundwater for domestic use from the dug wells especially in rural pockets has resulted in several groundwater problems. In this backdrop the paper in  The Ecosan- An International Quarterly Journal of Environmental Science, sheds light on groundwater quality issues in two panchayats of Kerala.

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Analysing the changes in land uses between 1989 and 2009, this paper assesses the impact on water balance in Mula and Mutha Rivers catchment upstream of the city of Pune

Land use changes  hydrologic system and have potentially large impacts on water resources. An assessment in an area with seasonally limited water availability and which is subject to rapid socio- economic development and population growth will provide an exemplary view on the local impacts of major recent developments in India. In this backdrop this paper analyzes past land use changes between 1989 and 2009 and their impacts on the water balance in the Mula and Mutha Rivers catchment upstream of Pune. The aim of the paper is:

  • assess the land use changes between 1989/1990 and 2009/2010
  • analyze the impacts of these changes on the long-term water balance components in the Mula and Mutha Rivers catchment upstream of the city of Pune.

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Hello,

We want to implement rain water harvesting system at our warehouses , need information on how to go about it.

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I am looking for people/organizations with knowledge and who can help me in creating farm ponds in Tamilnadu.

I have around 4 acres of land and the well is dry. I am looking for ways to save rain water to replenish the underground water tablet.

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Hello

We want to work water harvesting and recharge structures in Panna district of Madhya Pradesh (Tehsils Shahnagar and Pawai). Need help with soil profile, rock layers, water availability, drainage maps and suitable water harvesting and recharge structures for the region. The KML file of the region where we plan to work is attached for reference.

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Hello,

Our borewell is of 400ft deep and we found water at 250 ft, inserted a silt casing around the metal casing.

How can I recharge the borewell with rain water, is it possible through pebble or any other type of filtration. I was told that water will not enter down to 250 ft because there is a casing and will only provide wet area around the borewell.

We are planning to do a chip roofing/water proof for our moulding and simultaneously also build the water harvesting structures for our borewell, please suggest what steps can be taken.

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This document is a collection of case studies on ways to ameliorate water scarcity in rural Gujarat by Sir Ratan Tata Trust and the Navajbai Ratan Tata Trust. It provides first-hand accounts of how water programmes impact lives of hundreds and thousands of villagers. The solutions to deal with water scarcity include the promotion of rainwater harvesting (RWH), groundwater replenishment and drip irrigation.

This document is by journalist Suhit Kelkar on behalf of Sir Ratan Tata Trust and the Navajbai Ratan Tata Trust. It is a collection of case studies on ways to ameliorate water scarcity in rural Gujarat.

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