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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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DOWNLOADS
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RAINFALL
STATISTICS
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Other Links
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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...
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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... |
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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
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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...
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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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