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The Drinking Water Inspectorate (DWI) regulates public water supplies in England and Wales.

DWI is responsible for assessing the quality of drinking water in England and Wales, taking enforcement action if standards are not being met, and appropriate action when water is unfit for human consumption.

Drinking Water 2008
The DWI 19th Annual Report

Published 2 July 2009


Whats New

2 July 2009 Drinking Water 2008 - Annual Report
18 June 2009 Informaton Letter 07/2009 - Sampling during swine flu pandemic (PDF 106KB)
8 June 2009 New telephone numbers from Monday 15th June 2009 for the Drinking Water Inspectorate. The main enquiry unit number will be 0300 068 6400

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Drinking Water Inspectorate

55 Whitehall, London, SW1A 2EY
Telephone : 0300 068 6400


Department for Environment,
Food & Rural Affairs (DEFRA)

The National Assembly for Wales /
Cynulliad Cenedlaethol Cymru


Website last updated
2 July 2009

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DWI strives to ensure that the information on this website is set out in an accessible and understandable manner.
We welcome any comments about our website, including suggestions for additional topics that might be useful to our customers.