UK waters are too polluted to swim in, but European countries offer answers | Loughborough University

“Disruption to waste-water treatment chemical supplies following Brexit and the coronavirus pandemic hasn’t helped the situation. The Environment Agency responded to those shortages by introducing temporary waivers in 2021, allowing water companies to temporarily release not-fully-treated effluents into the environment.”
https://www.lboro.ac.uk/news-events/news/2023/april/uk-waters-too-polluted-to-swim/