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?

25 November 2016

Discover water logo

New website for customers to see how their water companies are performing.
Customers can now quickly and easily see how their water company is performing and compare it to other companies. The information can be found on www.discoverwater.co.uk and has a comprehensive range of data covering water quality, public health, customer service and environmental aspects of water and sewerage services. Discover Water is a collaborative project. Led and funded by water companies, it has been delivered by an independent third party and overseen by a sector-wide group, including the sector’s regulators and consumer watchdog. The information used on Discover Water is already separately published by water companies, Ofwat, Defra, Drinking Water Inspectorate, Environment Agency and the Consumer Council for Water.

15 November

Chief Inspector's Report published for April - June 2016

10 November

Call for Invitations to Tenders for DWI research project "Review of the Potential for Formation of Disinfection By-Products from Advanced Oxidation Processes" by 2nd December 2016.

1 September

The Inspectorate has launched its new private water supply webpages


Page last modified: 25 November 2016
Page reviewed: 25 November 2016

Drinking Water Inspectorate