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Waste water

4,000

tonnes of sewage treated every day

27m

homes and businesses served

581,890

km of pipes

Water 101: fighting sewage spills

Nobody wants sewage going into rivers and seas. How did we get here and what are water companies doing about it?

Improving sewers and reducing blockages

Quick links

Tideway super sewer

Storm overflows

How the sewer system operates and what is being done to improve it

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A man and woman looking at documents on a sofa

Find your supplier

Check who provides your water and wastewater services by entering your postcode

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Large cranes on a construction site

Industry statistics

Explore the website for industry statistics including company performance, leakage and water quality

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