Emma Reynolds on storm overflow monitoring, 21 January 2026
The statement
Since January of last year, 100% of storm overflows are being monitored, so we are shining a light of some of the pollution.
Emma Reynolds, 21 January 2026. Source
What the sources report
- Environment Agency, storm overflow spill data for 2023 reports storm overflows in England fitted with event duration monitors (end of 2023): 100%src
- Environment Agency, storm overflow spill data for 2025 reports storm overflow spill events, England (2025): 291492spill eventssrc
Notes
The Environment Agency reported in March 2024 that 100% of storm overflows had been fitted with monitors, meeting a target of the end of 2023.
In March 2026 the Environment Agency reported that every storm overflow in England has an event duration monitor, and 291,492 spill events in 2025.
Each figure's own page, with every change: Storm overflow spill events, England (2025), Storm overflows in England fitted with event duration monitors (end of 2023).
Receipts
Archived copies of every source this page repeats, each with its SHA-256 fingerprint.
- Parliament recordStatement source: Emma Reynolds
- Government publicationEnvironment Agency, storm overflow spill data for 2023: Storm overflows in England fitted with event duration monitors (end of 2023)
- Government publicationEnvironment Agency, storm overflow spill data for 2025: Storm overflow spill events, England (2025)
- Government publicationEnvironment Agency: storm overflow spill data for 2023
- Government publicationEnvironment Agency: Fewer and shorter storm overflow spills in 2025, new monitoring data shows