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.
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