CHENNAI: The Tamil Nadu government will ensure Chennai city has a permanent water supply capacity of 870 million litres a day (MLD) in the next five years by constructing two more desalination plants of 150 MLD and 400 MLD at Nemmeli and Perur and two 45 MLD tertiary treatment reverse osmosis plants, municipal administration minister S P Velumani announced on Friday.

Addressing the Times of India water conclave aimed at making Chennai water positive, the minister said 260 MLD of waste water would be recycled and diverted to industries to replace the potable water supplied now. Besides new sources such as the Thalakanacheri quarry, Nallambakkam quarry and Pulipakkam quarry with a potential of 60 MLD had been identified. The feasibility study for extraction of water from these sources was on.

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