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.

  • India not a water defict country. Neglect and lack of monitoring behind country's water scarcity: CWC As per the report, Reassessment of water availability in India using space inputs, by the Central Water Commission (CWC) with technical support of the National Remote Sensing Centre (NRSC), Hyderab...
    swatiposted 10 months 3 weeks agoread more
  • What will be the recharge rate of a borewell of 150 mm and 300 mm diameter, respectively in the district of Patiala, Punjab for the purpose of rainwater harvesting. The borewell ends about 15 meter before the first aquifer and hence sends the water into a layer of sand. The borewell will have perfor...
    Anonymous (not verified)posted 10 months 3 weeks agoread more
  • Centre launches Jal Shakti Abhiyan To tackle the water crisis looming the country, the Centre launched the Jal Shakti Abhiyan, a water conservation campaign focussing on 1,592 stressed blocks in 256 districts across the country. The Jal Shakti Abhiyan will focus on five key aspects - water cons...
    swatiposted 11 months 2 days agoread more
  • India is witnessing the second driest pre-monsoon season in the last 65 years. As the country eagerly eyes the monsoon clouds, the delay so far has now widened the rain deficit to 43%. The situation is particularly grim in the north-western region of Gujarat and Maharashtra and the southern states o...
    aarti kelkar kh...posted 11 months 3 days agoread more
  • High Court raps Tamil Nadu government over water crisis in Chennai Taking note of the severe water crisis looming in the state, the Madras High Court has come down strongly on the Tamil Nadu government for not taking adequate steps to battle the crisis. The court has now sought a state-wide compreh...
    swatiposted 11 months 1 week agoread more
  • Monsoon makes slowest progress across India in 12 years (source: Times of India) Indian Meteorological Department (IMD) records show that this year's monsoon has so far been the slowest progressing monsoon in the past 12 years. The monsoon has currently reached just about 10 to 15% of the c...
    swatiposted 11 months 1 week agoread more
  • Sir, I'm looking at rainwater direct injecting to borewell after filtration of rainwater through filters and recharge pit Details as follows: Roof Area: 2200 SqFt Bore Depth: 210 Ft Casing Pipe: 20 Ft Submersible Pump Placed at : 175Ft Water 1st Source: 40Ft (Dry as of now) Water 2nd Soure: 1...
    Anonymous (not verified)posted 11 months 1 week agoread more
  • Government to launch rural piped water scheme Taking note that more than 80 percent rural households in the country are yet to get piped water supply, the government plans to launch a new mission to ensure water from the tap for each house in villages in the next five years. Union Jal Shakti minist...
    swatiposted 11 months 2 weeks agoread more
  • We have 30 acres of land along with a borewell thats about 620 ft deep. Over the past year water level has reduced by 40 ft. I would like to make a recharge pit or any other solution to harvest rainwater and recharge my bore. We are situated in Patan, Gujarat. Looking for help, or a consultant and a...
    Anonymous (not verified)posted 11 months 2 weeks agoread more
  • INTRODUCTION On 30th May, the new government took oath to serve the nation. The celebrations on that scorching summer evening at Rashtrapati Bhavan echoed hollow with more than 500 million people vulnerable to severe drought in the country. India is currently going through an extended dry spell wit...
    priyadposted 11 months 3 weeks agoread more
  • I want to install a water harvesting plant at my home. I live in Jaipur, Rajasthan. How can I apply for subsidy for making the plant. My email id is pankil1986@rediffmail.com
    Anonymous (not verified)posted 11 months 3 weeks agoread more
  • Ours is 40 houses apartment in Mysore city. We plan to have recharge pits (3 to 4). We believe this is cheaper compared to standard water harvesting. How can we go ahead?
    Anonymous (not verified)posted 11 months 3 weeks agoread more
  • Jal Shakti ministry formed by merging water ministry and drinking water ministry The government has launched the new Jal Shakti ministry by merging the Ministry of Water Resources, River Development and Ganga Rejuvenation and Ministry of Drinking Water and Sanitation. Gajendra Singh Shekhawat has b...
    swatiposted 12 months 14 hours agoread more
  • I am interested in rainwater recharging to ground, how do I find appropriate people and equipment for work?
    Anonymous (not verified)posted 12 months 3 days agoread more
  • Hello, We are a housing society in Mumbai. We have obtained permission for borewell and drilled the borewell and have dug the ringwell pit around the borewell. So this will be for borewell recharge. We have dug another ringwell, this will be for groundwater recharge. We want to know if any permissi...
    Anonymous (not verified)posted 12 months 4 days agoread more
  • Does government provide any subsidy for rainwater harvesting pits, in agricultural land?
    Anonymous (not verified)posted 1 year 1 day agoread more
  • Our apartment complex in Bengaluru has sloping roof which does not allow us to have a roof top collection of rainwater. All that water comes down and flows on the roads of the complex to the lowest point in our complex before it goes out. Can this water which has traversed the complex on ground leve...
    Anonymous (not verified)posted 1 year 4 days agoread more
  • What percentage of impurities to be removed from Bentonite (reports attached here) to make it safe for storage of surface rainwater in an open pond near salt desert of Kutchh. We are planning to put 30 cm thick layer of treated Bentonite over 500 gsm virgin plastic layer below.
    Anonymous (not verified)posted 1 year 1 week agoread more
  • I live in a 24-storey tower in Thane city. I am interested to know the feasibility & costing for rooftop rainwater harvesting for our tower. Please provide me the contact of the nearest expert. Anshu 9820238873
    Anonymous (not verified)posted 1 year 3 weeks agoread more
  • India is on the brink of a major water crisis. With drought looming over the southern and western parts of the country, the existing water resources are in peril. Rivers are getting more polluted, their catchments, water-holding and water-harvesting mechanisms are deteriorating and groundwater level...
    aarti kelkar kh...posted 1 year 1 month agoread more

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We are constructing a residential building project  in Burdwan, West Bengal. So, we want to install a rainwater harvesting system and recharge pit. To whom shall we contact regarding this.

 

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During the monsoon, temple tanks in Chennai fill to the brim with water, helping in groundwater recharge.

Besides showcasing the architectural expertise and aesthetics of their time, temple tanks also play an extremely important role as water storage systems in Chennai. Chennai has 39 temple tanks (excluding the suburban area) according to a study conducted in 2008.  As the rains arrived, a few temple tanks in the city were filled to the brim with water, thus helping in groundwater recharge while offering a spectacular view for devotees.

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The only place for building rainwater harvesting structure within an apartment site is the stilt parking area with a 10 ft roof.  

Are there restrictions in building RWH structure of 3ft dia width and 10ft deep within the apartment stilt parking area in Chennai? With this type of recharge pit, we are apprehensive about whether all this water underground will affect pillars or the foundations of the construction? We do not have any other open area outside to build this recharge pit.

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Policy matters this week

Government to 3D map aquifers in all villages

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Chennai residents take matters into their hands in a novel initiative

Chennai had a severely deficient monsoon in 2018 with 40% less rain than normal. Since then, the city has been bracing itself for a water crisis. But clearly not enough had been done and the severe water scarcity this summer has been a wake-up call for people, highlighting the urgency of finding ways to use their water resources better.

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A million recharge wells for Bangalore

Vishwanath Srikantaiah, popularly known as the 'Rainman', has been in the news recently for his ambitious project to build one million recharge wells in Bengaluru. Given the dire situation we find ourselves in vis-à-vis water, the initiative could not have come at a better time.

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A research paper argues that quick fix solutions to drought management will not work unless they are backed up by proper planning, implementation, monitoring and regulation of water use.

Maharashtra is reeling under drought this year too, with the situation in Marathwada particularly bad. As high as twenty four out of thirty six districts in the state are facing deficient monsoons and about 4,920 villages and 10,506 hamlets are now completely dependent on water tankers for drinking water.

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Centre for Water Resources Development and Management (CWRDM) is organizing the Indian National Groundwater Conference (INGWC-2020) to discuss 'Groundwater Resources Management for Sustainable Development with the Special Emphasis on Coastal and Urban Environment’ at CWRDM, Kozhikode, Kerala, India dur

February 18, 2020 12:00PM - February 20, 2020 12:00PM
February 17, 2020 12:00PM

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I am planning to build a house in a 30 X 40 site in Bangalore. I would like to incorporate a cost effective grey water recycling and rainwater harvesting system. Kindly let me know how do I go about it since I am at the design stage of the project.

Thanks

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