Research: State of the water environment indicator B3: supporting evidence

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Environment Agency

May 22

07:00 2023

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State of the water environment indicator B3: supporting evidence

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State of the water environment indicator B3: supporting evidence (presentation version)

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State of the water environment: long-term trends in river quality in England

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Clean and plentiful water is one of the important goals in the governments 25 Year Environment Plan. In order to understand the condition of the water environment, as part of the outcome indicator framework we measure and report data on the state of the water environment (B3).

The water environment is complex and interlinked, with many different aspects playing an important part in the quality and quantity of water ecosystems and habitats. This evidence summary supports the B3 state of the water environment indicator.

You can get more information on water quality in England through the data we publish:

by river catchment
on bathing water quality

Published 11 June 2021
Last updated 22 May 2023 +show all updates

22 May 2023
Updated the B3 supporting evidence content. Removed reference to indicators F1 and F2 removed as Defra now lead on these. Added a reference to indicator J5.Linked to how to access information in the 2022 river basin management plans. Added a link to the catchment data explorer. Added a section 'new monitoring approach and data for future reporting'. Updated the data in the following sections: 'State of the water environment in England: data summary', 'Groundwater: ecological and chemical classification', 'Drinking water protected areas', 'European protected nature sites for water and wetlands'.
10 October 2022
Added the document 'State of the water environment: long-term trends in river quality in England'.
11 June 2021
First published.