Wye not act?

A legal challenge has been launched against the Environment Agency after the regulator found its own plan to tackle pollution in the River Wye will not work – yet stopped short of recommending stronger regulatory action.

Fish Legal has filed for a Judicial Review of the River Wye Diffuse Water Pollution Plan, published in November 2025. In that document, the Environment Agency acknowledged that existing controls have failed, that the additional measures proposed are unlikely to reduce phosphate pollution to the levels required and that conservation objectives are unlikely to be met without more transformative approaches to land management.

The Wye and its tributary the River Lugg are internationally protected as Sites of Special Scientific Interest and as part of a Special Area of Conservation. The river once supported a noted salmon run, but agricultural pollution, primarily phosphate from livestock farming, has driven a severe deterioration in water quality that has hit all fish populations.

Rather than recommending stronger tools, including statutory Water Protection Zones, the plan identifies a WPZ evaluation as a future investigation.

Zoe Wedderburn-Day, head of policy and strategy at Fish Legal, said regulators “cannot simply acknowledge failure and postpone hard decisions yet again”. She added: “After years of delay and continuing damage to a protected river, that is no longer lawful.”

Fish Legal argues the case has implications beyond the Wye, setting a precedent for how regulators must respond when they admit environmental law is not being met.