Is London Tap Water Safe To Drink?
Yes! The tap water is safe to drink.
Tap water in London, GB meets strict safety standards set by the UK Drinking Water Inspectorate (DWI). It undergoes rigorous testing for contaminants.
Water sources include the River Thames and River Lee, treated extensively to ensure potability. Chlorination and filtration remove harmful pathogens and impurities.
Occasional minor quality variations may occur, but overall, London tap water is safe, clean, and regularly monitored to protect public health.
Last checked: 2025-04-25
United Kingdom is ranked as number 2 globally with a score of 98.2% in the water quality EPI research conducted by Yale University.
Source of Water in London, United Kingdom
London's tap water primarily comes from the River Thames and River Lee. These rivers provide raw water for treatment plants.
Additionally, groundwater from aquifers supplements the supply, especially in outer London areas. This water is naturally filtered through soil and rock.
Water companies treat all sources extensively to meet safety and quality standards before distribution to consumers.
London Drinking Fountains
Public drinking fountains in London are regularly maintained and tested for safety and cleanliness. They meet health standards set by local authorities.
However, usage caution is advised during maintenance or water quality alerts. Some fountains may be turned off temporarily in such cases.
Overall, when operational and clean, public fountains provide safe drinking water comparable to tap water quality in London.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in London. You can click on each water drop to open the spot directly in Google Maps for directions.