Welcome to DWI

The Drinking Water Inspectorate (DWI) was formed in 1990 to provide independent reassurance that water supplies in England and Wales are safe and drinking water quality is acceptable to consumers.


What's new?

7 July 2015

Information Letter 02/2015 - Legal Instruments - Processes for reporting on, agreeing changes to and closure/revocation

25 March 2015

Sembcorp Bournemouth Water plead guilty to supplying water unfit for human consumption and failure to adequately operate a treatment process (PDF 143KB)

27 February 2015

Information Letter 01/2015 - Regulation 28 reporting requirements

16 December 2014

Information Letter 05/2014 - List of approved products for use in public water supplies in the United Kingdom

10 December 2014

Information Letter 04/2014 - Cryptosporidium monitoring in water supplies

30 September 2014

Catchment management Undertakings for pesticides, including metaldehyde - Progress reporting requirements


Page last modified: 27 February 2015
Page reviewed: 27 February 2015

Drinking Water Inspectorate