Research and analysis

Water only companies in England: environmental performance report 2025

Annual reporting for 2025 on the environmental performance of the 7 water only companies operating in England.

• From: Environment Agency
• Published: 29 October 2026

Applies to England

Documents

Water only companies in England: environmental performance report 2025

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Environmental performance report results for water only companies 2025

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Water only companies in England: environmental performance summary graphic 2025

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Affinity Water environmental performance data report 2025

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Bristol Water environmental performance data report 2025

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Essex & Suffolk Water environmental performance data report 2025

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Portsmouth Water environmental performance data report 2025

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SES Water environmental performance data report 2025

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South East Water environmental performance data report 2025

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South Staffordshire Water environmental performance data report 2025

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Details

There are 7 water only companies operating in England that provide clean (drinking) water services.

We regulate and work in partnership with them to ensure they protect and improve the environment.

We monitor their environmental performance throughout the year. Here we publish our annual assessment and individual data reports for water only companies.

For other reports, see the collection of Environment Agency data on business environmental performance.