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.
- provides independent scrutiny of water company activities for companies supplying drinking water to consumers in England and Wales;
- works with other stakeholders for the improvement of drinking water quality and to secure drinking water safety;
- commissions research to build a sound evidence base on drinking water quality;
- publishes data on drinking water quality in England and Wales.
22 November 2013
Information Letter 06/2013 - New European requirements for monitoring for radioactivity in drinking water supplies (PDF 75KB)
6 November 2013
Information Letter 05/2013 - Drinking water analysis and the regulatory requirements (PDF 95KB)
10 October 2013
Launch of WaterSafe - Advice for finding a plumber (PDF 132KB)
30 September 2013
Information Letter 04/2013 - Collection of data under the Private Water Supplies Regulations 2009 and the Private Water Supplies (Wales) Regulations 2010
22 July 2013
DWI's response (PDF 62KB) to Defra's consultation on the management of private water supply pipes.
Page last modified: 22 November 2013
Page reviewed: 22 November 2013