Categories: Chennai

Chennai: Onus when recharging aquifer to manage flooding

By Sekhar Raghavanchennai: This month, when the city receives heavy rain on two different days, we know how superficial wells to knock on groundwater and the maintenance of a better water body is important.
The structure of the harvesting of rainwater will not save the day anymore.
The Civic body and Metrowater officials need to fully change their strategies in terms of water distribution and use and relook in the lake restoration project.
There is only 50% rainwater harvest coverage in the city, but almost all areas of restrictions on several locations such as Aljamantur, Ayanavaram and Kilpuk Garden have ground water tables on the ground.
Chithra Kunjah in Mylapore is not abundant during 2015 floods.
Now it happens just because the level of pre-monsoon is high and the first mantra takes it to the ground.
In the park, Adyar, Palavakkam, was found that the ground water table actually overflowed.
People need to first extract more ground water by digging shallow wells or tube wells in the house and apartment.
They must start using it.
Metro water must be charged for water supplies.
This will encourage people to more depend on wells.
Usually, the drill well is 100-150 feet.
But the well and tube well open 30 feet.
Digging the last at home will help thin the high water table and allow increasing water marketing.
One point that every person is missing is that the earth has been saturated.
Because the supply of metrowater is very excessive, not much ground water is extracted.
Which produces extreme floods.
The rain that falls in Chennai causes all floods and not excess water left from the water body as happened in 2005 and 2015.
Also, transferred all storm drain water to be transferred to the water body that already existed in an extended area and excess water to the nearest water channel Will help in recharge aquifers better, besides reducing flooding.
For example, in ThoraiPakkam – Velachery Road, rainwater can be transferred to the body of the water, which can then be converted into a small reservoir and supplied to the environment as tried in retternal and shawl.
(As was ordered to Gautham Command.
The expert is the Director, Rain Center, Chennai)

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