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.
The Inspectorate:
- 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.
What's new?
4 April 2012
Information Letter 04/2012 - Water supply hygiene – summary findings of technical audits of distribution depots and associated network operations between July and November 2011 (PDF 144KB)
4 April 2012
Guidance document - Legislation of private water supplies and drought (PDF 120KB)
27 February 2012
Information Letter 03/2012 - Publication of research report on human pharmaceuticals in raw and treated river water to inform regulatory risk assessment methodology (PDF 96KB)
3 February 2012
Information Letter 02/2012 - Arrangements for demonstrating that the laboratory analysis of samples of drinking water and the associated reporting of analytical results meet regulatory requirements (PDF 111KB)
Page last modified: 04 April 2012
Page reviewed: 04 April 2012