The Independent: Less than 10% of emergency overflows monitored for raw sewage, figures show

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“Unlike storm overflows, water companies are only permitted to use them as a last resort, such as during power failure or a breakdown of pumps.

Thousands of emergency overflows are not monitored for raw sewage discharge with information taken from only 10% of the total in England, a freedom of information (FOI) request has revealed.

There are 7,016 emergency overflows which, unlike storm overflows, are only permitted to be used in extreme situations such as electrical power failure, a mechanical breakdown of pumps, rising main failure or blockage of the downstream sewer.

Water companies are only required to monitor emergency overflows that discharge into shellfish waters, so only 686 emergency overflows recorded data in the last two years.

Of those, 102 discharged into shellfish waters 635 times in 2021 while the following year, 86 discharged 491 times.

More than 60% of the emergency overflows that discharged did so on multiple occasions, raising concerns among campaigners that water companies are breaching the terms of their permits without punishment.”

 
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The Telegraph: Water companies not monitoring most ‘emergency overflows’ of raw sewage