When the Canal Stills, It Holds What We Would Rather Not See

Some waterways carry the quiet memory of everything that passes through them. A canal, by its nature, is a place of movement—boats gliding, oars dipping, water flowing from one point to another. But when the water slows and stills, it begins to hold things it should not. In Brentford, a corner of West London where the Grand Union Canal meets the River Thames, that stillness has become a quiet problem. Over the summer, residents began to notice animals floating where children row.

Paul Keane, general manager of the watersports charity Brentford Community Boathouse, brought the issue to the Brentford and Syon Area Forum. He described finding dead foxes, dead ducks, and a dead cat in the Brentford Lock basin. The stagnant water kept them in place. "We were going past them every day in exactly the same spot," Keane told BBC London.

For Kelly Everden, the boathouse's events officer, the concern is personal. She volunteered on a clean-up operation and said the children who use the canal were worst affected. "It's really upsetting on behalf of the children," she said, "because that's not anything that they should ever be faced with, especially with a pet cat."

The animals were predominantly found carrying E. coli and botulism, according to Keane. Warm, still water holds less oxygen, creating conditions where botulism thrives and E. coli grows faster. Ben Morris, founder of Clean up the River Brent, points to a broader infrastructure issue: misconnections, where household sewage ends up in waterways. He told BBC London that better inspection and regulation of plumbing and drainage across the capital are needed. "Until we've got that done," he said, "we are still going to have these sewage pollutions going into our rivers."

The Canal and River Trust said it aims to remove dead animals as quickly as possible. It noted that aquatic weed has been a particular problem at Brentford because both of its west London weed clearance boats were out of action at the same time. Thames Water said the area is known to have issues with misconnections and that, while not responsible for third-party drainage, it is working with property owners and councils. The Environment Agency said the area remains in drought, which can affect river health, and that it will continue investigating pollution reports.

Hounslow councillor Katherine Dunne said officers in Ealing and Brent are examining misconnections through a River Brent catchment group. Committee chair councillor Dan Bowring urged residents to contact their ward councillors. The concerns in Brentford reflect a pattern seen across the UK, where aging sewage infrastructure and periodic overflow discharges have increasingly affected rivers and canals used for recreation.

AI Image Disclaimer: The images accompanying this article were generated by artificial intelligence and are intended for conceptual illustration only.

Sources: BBC, EnviroLink Network, Brentford and Syon Area Forum