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You are here : Where water comes from

Where our water comes from

Why winter rain is important

In the central region* 60% of our water comes from underground sources. The ground needs to be wet for water to seep through.

Summer rainfall has little impact on the water levels because the ground is hard and dry, this makes it difficult for water to get through, and it runs off. Water is also used by plants and vegetation and evaporates.

Find out where our water comes from

*Our central region covers Hertfordshire, west Essex and parts of Bedfordshire, Berkshire, Buckinghamshire, North London and Surrey.

Water Resources

Find out the latest water resources position

Find out the latest water resources position

Tips to Save Water

Making small changes in water usage can make a big difference

How you can help

What we are doing to save water

The work we are doing to save water and protect our network

What we are doing to save water

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