Welcome to the
Drinking Water Inspectorate
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 Drinking Water Inspectorate (DWI) have issued a Press Release after sentencing took place yesterday in the case taken by DWI against Southern Water, at…
We are excited to launch StreamLine, the regulatory advice service for innovators and businesses in England and Wales. StreamLine is run jointly by the Drinking…
We have published CIR 2021 – Quarter 4.
Information Letter 02/2022 Reporting of Taste Results has been published.
An advice letter 01/22 on changes to the transitional list of products/substances permitted for use in private water supplies has been issued.
The Inspectorate is a World Health Organisation Collaboration Centre for Drinking Water Safety, and has been redesignated for a further four years to January 2026.…
Regions in England and Wales
Use our map to find your local water company
Find contact details, report a problem, look at incidents in your area.
See ongoing improvement in your area, how your water company is improving and find the water quality in your area.
Find your local company
If you are concerned about the quality of your drinking water you should contact your water company in the first instance. A number for your water company can be found here.