None of England’s rivers or lakes are in good health, according to official data which has prompted calls for urgent action.
Environment Agency figures show that every monitored surface water body in England failed new stricter standards for chemical pollution, meaning none were given an overall clean bill of health.
When figures were last published in 2016, 16% of waters were classed as in good health, but conservationists said the new data reveals the true poor state of rivers, lakes and streams.
Just one in seven rivers (14%) was classed as in good ecological condition, with healthy populations of fish, insects and aquatic plants that would naturally be found there, a figure that is also unchanged from 2016.
Conservationists said England was on track to miss targets in the EU Water Framework Directive that all water bodies should be in good or better condition by 2027.
The figures come after Environment Agency chief executive Sir James Bevan raised the possibility of reforming the directive.
But environmental groups warn that measures of how healthy England’s rivers and lakes are should not be watered down after Brexit, by changing the rules that class water bodies as not in good health if they fail any of the indicators.
They have called for the Government to bring in ambitious legal targets to improve the quality of the aquatic environment, legislate for water companies to phase out sewer overflows that pollute rivers, and ensure funding for monitoring.
The groups said water health should be a top priority for regulator Ofwat to ensure reductions in customer bills are not prioritised over getting England’s rivers and lakes in a good condition, to provide sustainable water supplies in the face of climate change.
Farmers also need advice and support, and funding through payments to protect rivers using measures such as buffer strips of land between fields and waterways and reduced use of chemicals, they urged.
“Urgent investment is needed now to turn our suffering waters into thriving blue corridors for wildlife.
“It means investment, industry change, and improved standards are essential, with the legal underpinning in the Environment Bill to make our waters well again.”
Beccy Speight, RSPB chief executive, said: “We think of our rivers, canals, lakes and wetlands as beautiful landscape features, but they are also vital to life, provide homes for our precious wildlife and, in good condition, can help tackle the climate crisis by storing huge amounts of carbon.
“But we are wrecking these incredible natural treasures through pollution and by extracting and draining too much water away.
“It is time for the Government to face up to the fact that international and UK targets meant to protect nature have failed – only legally binding targets and transparent, properly funded monitoring will lead to real change for nature.”
Environment Minister Rebecca Pow said: “We need to go further and faster on reducing the environmental impact from storm overflows and other sources of pollution including chemicals and agriculture.
“More needs to be done urgently, and I met with water companies earlier this month to set out the high expectations this government has for our water environment, including in particular chalk streams.
“These results show we have a long way to go, with a new way of testing for chemicals more accurately reflecting what is in our water environment.
“While it’s not comfortable reading, this will allow us to plan more effectively to tackle the scourge of pollution.”
Environment Agency chairwoman Emma Howard Boyd said there had been improvements over the last 25 years but water quality had plateaued since 2016.
“The 25 Year Environment Plan aims for at least three-quarters of our waters to be close to their natural state, but today just 14% of our rivers are.
“To get where we want to be everyone needs to improve how they use water now and that means water companies, farmers and the public,” she added.