My water supply

On a typical day, we treat 330 million litres of water to make it clean and pleasant to drink. It’s then supplied to 500,000 homes and 36,000 business customers.

Each year, we carry out thousands of tests on samples we have taken from treatment works, reservoirs and homes across the region.

Water quality reports

The samples are analysed in a UKAS-accredited laboratory, to ensure they comply with drinking water safety standards.

Scroll around the map or use the search box to find your area. Then, click the link in the pop-up box to see the full water quality report. 

Water quality terms

Find out what the technical terms used in the water quality reports mean: 

Drinking Water Inspectorate

Find out more about our regulators >