Sewage Spills in England Occurred Every Two Minutes in 2025, Data Reveals
Untreated sewage was discharged into England's rivers, lakes, and seas at a rate of once every two minutes throughout 2025, according to newly released figures from the Environment Agency. The data shows there were 291,492 sewage spills recorded last year, marking a significant environmental concern despite representing a decrease from previous years.
Substantial Reduction in Spill Numbers and Duration
The 2025 figures represent a 35 percent decrease from the 450,398 pollution events recorded in 2024. More dramatically, the total duration of sewage releases nearly halved, dropping from 3.61 million hours in 2024 to approximately 1.88 million hours in 2025—a 48 percent reduction overall.
Some water companies achieved even more impressive reductions, with spill duration decreasing by 60 to 70 percent compared to 2024 levels. The data also reveals there was an average of 20.5 spills per overflow outlet in 2025, down from 31.8 spills per outlet in the previous year.
Dry Weather Conditions Contribute to Improvement
Environment Agency officials attributed much of the improvement to unusually dry conditions throughout 2025, which saw large parts of England experiencing drought for much of the year. This contrasted sharply with the exceptionally wet weather patterns of 2024 that overwhelmed sewage systems.
Alan Lovell, Chairman of the Environment Agency, commented: "While these numbers are heavily influenced by rainfall levels in 2025, substantial reductions in spill duration and events are a clear win for people and the environment."
He emphasized that "it is vital that improvements to the sewage system are sustained over the long term, and the Environment Agency will continue to hold water companies to account where performance falls short."
Government and Industry Response
Water Minister Emma Hardy acknowledged the progress while maintaining that "there is still an unacceptable amount of sewage entering our waterways." She highlighted government actions including ringfenced record investment, new legislation to hold water companies accountable, the establishment of a single industry regulator, MOT-style checks on company assets, and unannounced inspections.
A spokesperson for Water UK, representing the water industry, stated: "Sewage spills are awful and we are working to end them as fast as we physically can." While acknowledging the role of drier weather, the spokesperson pointed to "a tripling of water company investment" that is beginning to show results through expanded storm tank capacity and treatment works improvements.
Campaigners Warn of Ongoing Problems
Environmental campaign group Surfers Against Sewage presented a more critical perspective, revealing that their analysis of National Storm Overflow Hub data showed more than 187,000 hours of spills occurred on "dry days" in 2025—when overflows should not have been discharging at all. These incidents affected 105 designated bathing waters across England.
The organization also warned that it had already issued 3,899 sewage alerts through its Safer Seas and Rivers Service app in the first three months of 2026, more than double the number for the same period last year.
Giles Bristow, Chief Executive of Surfers Against Sewage, stated bluntly: "Don't be fooled by the water company spin. They dumped sewage illegally for hundreds of thousands of hours on dry days, made scores of people sick, and polluted our so-called protected bathing sites."
He added: "And just three months into 2026 their level of sewage dumping already dwarfs last year. This dirty business hasn't changed a bit. The sewage scandal rages on."
Looking Forward
Water UK has committed to halving sewage spills over the next five years through continued infrastructure investment and system improvements. However, campaigners remain skeptical, pointing to ongoing pollution incidents and calling for more stringent enforcement of environmental regulations.
The debate highlights the tension between acknowledging progress in reducing sewage spills while recognizing the substantial work still needed to protect England's waterways from pollution. With monitoring now fully established across the network, stakeholders will be watching closely to see if improvements continue regardless of weather patterns in coming years.
