Championing Our Water

You’re thirsty. You turn on a tap, the glass fills and you drink without a second thought.

  • Groundwater
20 Jan 2017

But did you know that if you live near the National Park – particularly on the southern coast – it’s the chalk of the South Downs we have to thank?

Chalk is porous and holds water like a sponge. Between the Adur and Ouse valleys alone this aquifer enables Southern Water to pump groundwater to fill more than 15,000 Olympic swimming pools each year. A vital resource for both homes and businesses in an otherwise relatively dry part of the country. It also sustains rare and nationally important habitats such as chalk streams and wetlands.


Olympic pools could be filled with the groundwater pumped from the aquifer between the Adur and Ouse valleys each year

But as with many of our natural resources this groundwater is under threat – from population pressures and as a side effect of modern farming and life styles. There is a delicate balance between meeting our own need for water against that of our wildlife even before adding the impact of pollutants.

Fertilisers, pesticides and herbicides used in farming, parks, golf courses and gardens can all find their way into the groundwater. Recent scandals have raised the profile of air pollution from cars but they are also one of the greatest contributors to water pollution. Particles of heavy metals from brake pads and tyres, and oil and fuel leaks create a cocktail of chemicals which washes from the road and eventually into the chalk.

But all is not lost. We asked Aimee Felus, Project Manager for the new Brighton Chalk Management Partnership (ChaMP) about work to improve and protect our water.

“There’s a great deal we can do,” says Aimee. “In rural areas nitrates are our biggest concern and we want to work with farmers and land managers to develop pilot projects tackling this. For example, in looking at how nutrients are applied, how manure is dealt with, planting cover crops to reduce run off and even planting new woodland in problem areas.

‘In towns and cities we need to reduce the amount of chemicals reaching the aquifer from golf courses, allotments, industrial and commercial sites and roads. We’ll be offering advice and training to support people who want to play a part in improving this vital resource hidden beneath our feet in turn benefiting our landscape and wildlife.’

ChaMP is led by South Downs National Park Authority, Southern Water and the Environment Agency, in partnership with Natural England, Brighton & Lewes Downs Biosphere Reserve, Brighton & Hove City Council, and the University of Brighton.

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