Health officials in England have advised the public not to swim at 12 of the country's 14 designated river bathing sites [1].

The warning follows the discovery of bacterial contamination linked to faecal matter, posing significant health risks to anyone entering the water. This widespread pollution affects major waterways, including sections of the River Thames, River Severn, and River Avon [1, 2].

According to the Environment Agency and Public Health England, the contamination is attributed to combined sewer overflows, agricultural runoff, and occasional sewage leaks [1, 2]. Testing revealed that bacterial levels at these locations exceed the EU’s ‘good’ water quality threshold by up to five-fold [1].

"The water quality at these sites is unsafe for swimming due to high levels of faecal bacteria, and we advise the public to avoid contact until further notice," an Environment Agency spokesperson said [1].

Only two designated sites remain safe for swimming [2]. The remaining locations are under monitoring to determine when they can be reopened to the public.

Public Health England officials indicated that the current situation reflects systemic issues with water management. "These findings highlight the ongoing challenges of sewage overflow management and the need for investment in infrastructure," a director of environmental health said [2].

Local government representatives are currently coordinating with the Environment Agency to track water quality improvements. A mayor of a river-side town said local councils are working with the agency to monitor the sites and will issue updated guidance as conditions improve [1].

12 of 14 designated river bathing sites are unsafe for swimming

The contamination of nearly all designated river bathing sites underscores a critical failure in England's sewage and agricultural runoff management. By exceeding safety thresholds five-fold, these waterways represent a public health hazard that necessitates urgent infrastructure investment to prevent combined sewer overflows from compromising natural recreation areas.