Dear Thames Water,
As you will know the Mulberry Court Sewer Overflow (TEMP.2801) discharged to the Olympic Park Wetlands Lake 55 times in 2023, 31 times in 2022, 60 times in 2021 and 58 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 Olympic Park Wetlands hold significant ecological value and are an integral part of the biodiversity in the park, yet London Waterkeeper has observed sizeable amounts of sewage pollution.
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 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 the Olympic Park Wetlands. Transparency is fundamental to this process. Electronic answers to the above questions are fine.
Yours Sincerely,
Your name