Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment he has made of the (a) adequacy of improvements to Chertsey Sewage Works and (b) extent of further work needed to reduce storm overflows from that site.

The Environment Agency (EA) has required Thames Water to significantly improve the storm tank capacity at Chertsey Sewage Treatment works as part of the current Water Industry National Environment Programme (WINEP) 2020-25 to reduce the frequency of storm overflows.

The current completion date for this work is 31 December 2024. The EA will be inspecting the site to confirm the improvement scheme has been completed and will issue an updated environmental permit accordingly.