Eight of England’s nine water companies still failing on environment, report finds

The joint report found that England’s water companies were performing worse environmentally, despite billions of pounds of investment. Eight of the nine companies received a rating of “poor” or “requiring improvement”. Their combined score was just 16 stars out of a possible 36. That was down from 19 stars the previous year and was the lowest score since the assessment began.

The report also recorded 74 serious pollution incidents. These incidents cause significant harm to the environment. That total was only one lower than the previous year. Thames Water had the most pollution incidents overall, followed by Anglian Water, United Utilities, Yorkshire Water and Southern Water.

The findings prompted Angela Eagle to summon industry bosses to Whitehall. She warned that “root-and-branch reform” could not wait. Defra said tougher consequences and improvement actions would follow, including reducing pollution, tackling leakage and improving customer satisfaction.

A “serious pollution incident” is an incident that causes significant harm to the environment. The report uses this as a high-severity category within the wider number of pollution incidents. It therefore signals the most damaging cases rather than every reported event.

The report recorded 74 serious incidents involving England’s water companies. This was only one fewer than the previous year, despite billions of pounds of investment, restrictions on executive bonuses and public criticism. The figure shows that severe environmental harm remained a major problem.

The wider total was much larger: England experienced 2,666 pollution incidents in 2025. The article does not provide a full definition for every lower-level category, but the contrast is clear. Serious incidents are a subset marked by significant environmental harm, while the wider total includes all reported pollution incidents counted by the Environment Agency.

There were 2,666 pollution incidents in England during 2025. The number covers the wider set of pollution incidents, not just the most severe cases. It provides a broad measure of environmental problems linked to the water industry.

The Environment Agency said the 2025 total was 40% higher than in 2016. Thames Water had the most incidents. Anglian Water came next, followed by United Utilities, Yorkshire Water and Southern Water. The article does not give each company’s individual total.

The increase matters because it happened during a period of major investment and intense public concern. The separate total of 74 serious incidents was only one fewer than the previous year. Together, the figures led ministers and campaigners to demand stronger action, tougher consequences for failing executives and wider reform of water regulation.

When water companies fail to control pollution, the damage reaches the natural environment and the public. The report’s serious incidents are defined as causing significant environmental harm. Campaigners warned that rivers and wildlife lose out, while sewage can continue entering rivers and seas.

The article gives a clear example through James Wallace of River Action. He said the current system rewards shareholders and creditors while rivers, wildlife and bill payers lose out. He also argued that regulators should have the power to make polluters pay, rather than passing the burden to the public.

The immediate reality is continued environmental pressure. The report found 74 serious incidents and 2,666 incidents overall in 2025. Ministers want fewer pollution incidents, while campaigners seek stronger enforcement and possible changes to ownership. Water UK said record investment should help end sewage entering rivers and seas, but acknowledged that performance remains inadequate.

Billions of pounds of investment do not automatically produce better environmental results. The article reports poor performance despite investment, but it does not prove that investment itself caused the failure. Money may take time to affect infrastructure, maintenance and pollution control, while problems can have several causes.

Water UK said more than half of pollution incidents were caused by blockages or vandalism. It argued that these problems were not directly under companies’ control. The article also describes fragmented regulatory responsibilities and says shareholders and creditors may be rewarded while the public and environment lose out.

The current evidence is therefore mixed. Leakage was reportedly at its lowest level in history, yet 74 serious incidents remained and the overall rating fell to 16 stars. Future improvement depends on the actions Defra plans, including tougher consequences, reduced pollution, better leakage control and improved customer satisfaction.

The four bodies oversee different parts of water-company performance. The Environment Agency monitors environmental performance in England. Ofwat regulates the economic side of the water industry. The Drinking Water Inspectorate checks drinking-water quality, while Natural Resources Wales covers environmental regulation in Wales.

The article says these agencies pooled their data for the first time. That collaboration produced the joint report covering water-company performance. It also points to a problem: regulatory responsibilities have been fragmented across several institutions, making coordinated oversight more difficult.

The proposed direction is greater coordination, possibly through a single watchdog. Richard Benwell warned that a new regulator must be more than a merger. He called for a legal duty to restore nature, strong environmental targets and enough powers and resources to enforce the law across water, agriculture and chemical companies.

Water privatisation means placing water provision in private companies rather than keeping it under direct public ownership. In England, private water companies provide the service and are overseen by regulators. The article says England is one of only two countries in the world with fully privatised water provision.

The other country named is Chile, where privatisation was imposed during the 1980s by a military dictatorship. The article contrasts this arrangement with proposals to review alternative models, including public ownership. It does not explain the detailed structure or performance of those alternatives.

The ownership question matters because environmental failure has renewed political and public debate. James Wallace called privatisation a failed experiment and urged ministers to review other models. Angela Eagle instead promised possible root-and-branch reform, while regulators and campaigners focused on stronger enforcement, environmental targets and tougher consequences for failing companies.