Serious pollution by water industry remains high despite £5bn investment, say regulators

The recent joint report by England and Wales’ water industry regulators reveals a decline in environmental performance among water companies, despite substantial investment in the sector. Out of the nine companies evaluated in England, eight were rated either “poor” or as “requiring improvement,” with only Severn Trent achieving the top rating. While companies made progress in reducing service interruptions, significant pollution issues continue to pose a serious threat to the environment.

For the first time, four regulatory bodies—the Environment Agency (EA), Natural Resources Wales, Ofwat, and the Drinking Water Inspectorate—collaborated to provide a comprehensive assessment of the water companies. This unified approach reflects the government’s intention, led by Sir Keir Starmer, to merge these organizations into a single entity to enhance regulatory efficiency.

Environmental performance is the most criticized aspect of the report. The Environment Agency highlighted that the number of serious pollution incidents in 2025 remains alarmingly high, consistent with rates seen in previous years. Alan Lovell, chair of the EA, remarked that the findings “expose the scale of underperformance across the sector,” signaling a troubling trend despite ongoing efforts.

Over the past five years, water companies have invested approximately £5 billion, yet Lovell pointed out that “not all companies have delivered the environmental improvement schemes they have been funded for.” This shortfall underscores the ongoing challenges faced by the industry in meeting the environmental standards expected by regulators and the public alike

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