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Monitoring CSO’s

Monitoring combined sewer overflows (CSOs)
Monitoring combined sewer overflows (CSOs) - The NEP includes 714 named outputs we have to deliver with regulatory dates, so we will have installed monitors at all environmentally sensitive CSOs by the end of the price control period. This measure is the percentage of these outputs we have achieved.

There are 714 outputs required in the NEP by March 2020. We met our NEP requirements in 2017-18 by delivering and permitting 178 monitors.

We were targeted with achieving 43% of the total monitored by the end of 2017-18 and 100% by the end of 2019-20. This measure has the potential for a customer refund; for each 1% we miss the target by we will refund £10k.

At the end of 2017-18 we are monitoring 60% of the total overlfows that have an impact on the environment and we anticipate achieving the remaining programme.