They are setting out a 10-point plan to make UK water systems sustainable, including fair pricing, slashing waste and upgrading sewerage facilities.
People should have personal allowances and homes should be metered, they say.
EU regulations require member nations to have plans for restoring natural watercourses in place by 2009.
The European Water Framework Directive prescribes that the ecology of rivers, lakes and wetlands should be restored by 2015.
"With the Blueprint for Water we, a coalition of leading environmental organisations representing some six million people, are calling on the government to act now."
Going with the flow
It is perhaps unusual to find conservation groups such as the Wildlife Trusts, WWF and the RSPB in league with angling associations.
But on water, they find common arguments, namely that Britain should:
"It's clear that adequate supplies of clean water are essential, not only for our lives but for the health of the habitats, species, landscapes and soils we depend on," said Fiona Reynolds, Director-General of the National Trust.
While advocating better management of natural watercourses is standard fare for conservation groups, they step outside their conventional boundaries in advocating fair pricing and metering.
Within two years, their report says, the government should publish a plan for metering every home. The meters should actually be installed throughout England at least by 2020.
It wants the government to set a consumption ceiling of 125 litres per person per day in most areas, and 100 litres in areas of scarcity.
By comparison, a bath uses about 80 litres, flushing the toilet about 5-10 litres, and a hosepipe 500 litres per hour.
The coalition will present its report to environment minister Ian Pearson in Parliament on Tuesday.
Return to the list <<<<<