The water we supply is of the highest quality but occasionally there may be problems. The best thing to do is to read our water in your home page which includes a wealth of advice about the standard of your drinking water. From finding an approved plumber to what to do if your water smells funny or looks cloudy, our factsheets will help.
We have amongst the highest water quality in the UK.
All drinking water in the UK has to comply with stringent standards set by the Water Supply (Water Quality) Regulations, which incorporate the requirements of the European Drinking Water Directive.
Compliance in England and Wales is strictly monitored by the Drinking Water Inspectorate (DWI). The DWI
independently reviews all water companies' test results and audits their water quality testing laboratories.
They publish an annual report which summarises the water quality standards achieved by regions and individual companies. This allows consumers to check their water supplier's performance and to find out about events and incidents which must be notified to the DWI.
Each year, we carry out approximately 120,000 tests on around 13,000 samples taken from every point in our supply chain. Water sources, treatment works, storage reservoirs and randomly selected customer taps all come under scrutiny. We regularly achieve more than 99.5 per cent compliance with industry standards.
Our laboratory is UKAS accredited, an internationally recognised quality standard which covers all aspects of activity from sampling and analysis through to reporting the results.