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

To ask the Secretary of State for Environment, Food and Rural Affairs, if he will make an assessment of the potential merits of replacing combined sewerage systems with segregated sewerage in Devon.

For too long, water companies have discharged unacceptable levels of sewage into our rivers, lakes and seas.

Storm overflows are safety valves within our combined sewage system to protect properties from flooding. The Storm Overflow Discharge Reduction Plan sets stretching targets to reduce the harms from storm overflows. This ambitious plan is guiding future investment in sector.

Water companies are investing around £12 billion between 2025-2030, a record amount, to improve nearly 3,000 storm overflows across England and Wales, and reduce spills by 45% compared to 2021 levels. In Devon, a large spill reduction programme of works will be undertaken by South West Water, in the next 5 years to improve overflows in the Exe river & estuary catchments. This will see improvements to Combined Storm Overflows, pumping stations & sewage treatment works.

We are also carrying out a full review of the water sector to shape further legislation that will transform how our water system works and clean up rivers, lakes and seas for good.