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?

2 February 2016

DWI enforcement policy updated

5 January 2016

Information Letter 01/2016 - Code of practice on technical aspects of fluoridation of water supplies 2016



Page last modified: 03 February 2016
Page reviewed: 03 February 2016

Drinking Water Inspectorate