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

To ask the Secretary of State for Environment, Food and Rural Affairs, how many sewage releases there were in Luton South constituency in (a) 2022 and (b) 2023.

Over the past eight years the Environment Agency and Defra have worked with water companies to introduce Event Duration Monitors (EDMs), which provide them with much more information about where and when storm overflows are occurring. Water companies submit annual returns of their EDM data, which are publicly available here. The annual returns for 2023 are not yet available. The 2022 return shows that there were 32 storm overflows reported by Thames Water within the Luton South constituency. Only 5 of these storm overflows had EDM installed in 2022. EDM recorded 12 spills from these 5 overflows in 2022, lasting a total of 8.62 hours. Of the remaining 27 overflows without EDM, 2 were reported as being no longer operational, and their discharge permits have now been revoked. The other 25 overflows were all due to have EDM installed by December 2023. At the end of 2023, the Government target of having all storm overflows in England monitored was met, so EDM data on these sites should soon be available as well.