Till about thirty years back, the areas around our homes and offices used to be unpaved and the rain falling on these areas would percolate into the soil and remain there for being drawn through shallow open wells. With the proliferation of flat complexes, not only have these areas been paved and percolation of rainwater into the soil almost totally stopped, the quantity of water drawn from the soil below has increased manyfold. Consequently open wells and not - so - deep bore wells started drying up. The reason is that no sincere attmept is made to replenish the ground watertable with rainwater during the monsoon.

As individuals, groups and communities, let us all wake up before it is too late and not only understand what rainwater harvesting is all about but also implement measures to harvest rainwater in our houses and flat complexes and put it into the soil for our subsequent use.


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Water is the main source for the development for all human beings, cattles, and industries. From the History of the Global system we learn that, in ancient days, perennial rivers became the major source of water, and the people, who were far away from the river sources, practiced the utilization of ground water and stored rain water for... more...

In ancient days itself, people, especially Indians, know the methods of conservation of rainwater. There are evidences that, even during Harappan period, there was very good system of water management as could be seen in the latest excavation at Dholavira in Kachch. During independence period, the people use to manage water resources considering it as part of the nature which is essential for ... more...

The Approximate Costs for OpenWell (for chamber only), Rs. 1,350. Percolation Pit Rs. 650. Percolation Pit with Bore, Rs. 1,200. Recharge Trench, Rs. 650. Recharge Trench with Bore, Rs. 900. Recharge Well (Shallow/Small), Rs. 4,100. and the Model Estimates Rain Water Harvesting for Individual House, Flats, Office buildings and for other common items more...

At the micro -level, our annual rainfall of 120 cm, if harvested within Chennai city, extending over an area of 174 sq. kms, is capable of yielding 125 litres per day, making us self sufficient. At the micro-level, this amount of rainfall is capable of yielding more than 700 litres of water per day this will not only take care of the daily needs of a family with 5 members...more...

In areas where the water becomes yellow due to presence of iron salts, rainwater harvesting will progressively leach out these salts leading to clean water availability in the long run. Flooding of low lying areas and roads can be avoided to a large extent, since rainwater that is not harvested both within the house as well as outside is mainly responsible for flooding. more...


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