Muddy Cauvery water shuts pumping station

The reservoirs in the Cauvery basin might be full, but in large parts of the city, taps have run dry. The paradox has played out for the Bangalore Water Supply and Sewerage Board (BWSSB), which has stopped pumping water to capacity on Monday and much of Tuesday.

The reason is the increased ‘turbidity’ in the churning waters of the Cauvery river after its release from the Kabini reservoir.

In a release, BWSSB said the purification plants of Cauvery Stage 4, Phase II — which alone brings in 500 million litres of water per day (MLD) — at T.K. Halli had to be partially stopped as the gushing waters had increased quantity of silt.

Of the five pumps, pumping from two — which carry around 100 MLD — had to be stopped from Sunday night until the machines were cleaned. It was only on Monday at 4 p.m. that all pumps began lifting water.

“The unexpected release of water saw turbidity increase rapidly. This was unexpected. We had to close the pumps and clean the machines of accumulated mud. Our teams are on alert to address this issue if it comes up again,” said an official.

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