As you will know the Longbridge Road Storm Overflows A & B (CANM.0919) discharged to the Mayes Brook 87 times in 2023, 90 times in 2022, 79 times in 2021 and 54 times in 2020. This triggers an investigation under the water industry Storm Overflow Assessment Framework (more than 40 spills on average over three years, as recorded by your monitors).
The Mayes Brook flows through Mayesbrook Park, a high amenity public park. It is also the first climate change park in London, which saw the river re-naturalised, and a nature reserve created. London Waterkeeper has observed large amounts of sewage pollution along the banks of the Mayes Brook, just downstream from where the outfall discharges to the river.
Citing the Environmental Information Regulations 2004 I would like to request the following information:
1) In a previous reply to London Waterkeeper you said hydraulic capacity was the reason for the high number of discharges, what percentage are caused by rain? 2) When do you expect to complete an aesthetics Impact Assessment score for the overflow; an Invertebrate impact score for the overflow; a water quality impact score for the overflow? 3) In a previous reply to London Waterkeeper you said that a natural drainage or SuDS option had been developed for this site and costs look to be too costly, but you are exploring all options. When do you expect to have finished this process? 4) Ofwat has now said you can’t have all the money you want for investment, will this delay improvements at this site?
The above information will help us understand how sewer overflows are being managed in Mayesbrook Park. Transparency is fundamental to this process. Electronic answers to the above questions are fine.
Yours faithfully,
Your name