State urges A.P. to release Krishna water till October

K. Lakshmi

The five reservoirs that supply water to the city have a combined storage of 6.82 tmcft ; if the supply is continued till the northeast monsoon, Chennai can get about 5 tmcft of water

State urges A.P. to release Krishna water till October

Water flowing into Chembarambakkam reservoir through the link canal from Poondi on Wednesday. B. VELANKANNI RAJ B. VELANKANNI RAJ

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Thursday, 8th June 2023
Page No. 6
Chennai Print Edition

The Water Resources Department (WRD) has sought release of the Krishna water to be continued till October to fill major reservoirs that supply drinking water to Chennai.

The five reservoirs, including the Thervoy Kandigai Kannankottai, have a combined storage of 6.82 tmcft, which is 58% of the capacity, as on Wednesday.

Officials said the available resources in the lakes, which contribute a major share of the supply, would last another six months.

“We have received 500 mcft of Krishna water from Andhra Pradesh since May 3. We have requested the authorities in that State to continue the supply as we are due for next spell between July and October,” said an official.

Water is being transferred from Poondi to Chembarambakkam reservoir through the link canal.

The department expects to receive a minimum of 2 tmcft. of Krishna water by July end. This would help maintain the daily water supply this year and avert water scarcity. If the supply continues till the onset of northeast monsoon, Chennai may have assured supply of another 4 to 5 tmcft of water.

Of the 1,038.80 million litres a day (mld) supplied by Chennai Metropolitan Water Supply and Sewerage Board, nearly 988.83 mld is being provided to domestic consumers in the city and the peripheral areas.

Meanwhile, the department has completed about 40% of the work to improve the feeder canal that links Poondi and Red Hills reservoirs.

As of now, water transfer from Poondi to Red Hills reservoir has been stopped in view of the work.

Besides removing sedimentation and improving inlets, concrete lining is being provided in the 2-km stretch of the canal.

After the ₹19-crore project is completed, the canal’s carrying capacity would be restored at 3,000 cusecs.

Though built in 1983, no major improvement work was carried out in the waterway. Barring a few stretches with concrete lining, it remained an earthen channel.

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