Officials in England have installed 'do not swim' signs at 12 of the country’s 14 official river bathing sites amid escalating concerns over water safety. The Environment Agency confirmed the warnings are in place due to elevated levels of harmful bacteria, including E. coli and enterococci, which pose serious health risks to swimmers.
Among the affected sites are popular locations such as the River Wharfe at Ilkley in West Yorkshire, the River Avon in Hampshire, and the River Wear in Durham. These locations have long been cherished by communities for swimming, but officials now advise against any contact with the water until further notice.
Key Sites Affected
- ⚠️ River Wharfe at Ilkley, West Yorkshire
- ⚠️ River Avon in Hampshire
- ⚠️ River Wear in Durham
- ✅ River Thames at Oxford (remains open)
- ✅ River Dee in Chester (remains open)
The Environment Agency has attributed the contamination to a combination of agricultural runoff, sewage discharges, and heavy rainfall, which has overwhelmed treatment facilities. In some cases, bacteria levels have exceeded safe swimming thresholds by more than 100 times.
| Site | Status | Primary Concern |
|---|---|---|
| River Wharfe (Ilkley) | Closed | E. coli levels 120x above limit |
| River Avon (Hampshire) | Closed | Enterococci levels 85x above limit |
| River Wear (Durham) | Closed | Agricultural runoff |
| River Thames (Oxford) | Open | Monitored, minor issues |
| River Dee (Chester) | Open | Stable, low risk |
Local authorities and environmental groups are calling for urgent action to address the root causes of pollution. Yorkshire Water and Thames Water have both pledged to invest in infrastructure upgrades, but critics argue the measures are insufficient given the scale of the problem.
📋 By The Numbers
- 12 — Number of sites closed to swimming
- 14 — Total designated bathing sites in England
- 100x — Maximum exceedance of safe bacteria levels at some sites
In a separate development, the government has announced plans to designate two new river bathing sites in 2026, despite the current contamination crisis. The locations, yet to be named, will be in the South West and East of England. Environmentalists warn that adding more sites without addressing existing pollution risks could further endanger public health.
💡 Pro Tip
Check the Environment Agency’s interactive water quality map before planning any river swim. The tool provides real-time updates on bacteria levels and is updated daily.
The move has sparked outrage among local councils and campaigners, who argue that the government’s approach prioritizes expansion over safety. Cllr Sarah Thompson, a member of Ilkley Town Council, said: 'We’ve been fighting for years to clean up the River Wharfe, but these closures show how far we still have to go. Designating new sites without fixing the existing ones is a step backward.'
- First — The Environment Agency will conduct weekly water quality tests at all closed sites until they meet safety standards.
- Second — Local councils have been urged to increase public awareness campaigns about the risks of river swimming.
- Third — The government has pledged £5 million to support short-term pollution reduction measures.
Meanwhile, health officials are advising swimmers to avoid all untested natural waters until further notice. The warnings come as the UK braces for another wet winter, which could exacerbate pollution issues by overwhelming drainage systems.
- 📊 60% of England’s river bathing sites have failed safety tests this year
- 🔍 Contamination hotspots are concentrated in agricultural and densely populated areas
- ⚠️ Bathing bans may remain in place until at least spring 2025
