Tap-ThatOpen the app

Brittany

It depends on the town. 584 of 585 listed water systems in Brittany, France are low risk (99.8%).

Covers communes of roughly 1,000 people or more. Ratings weigh how many bacterial and chemical tests passed. A single failed test does not by itself lower a rating. Hardness is the median measured this year, in French degrees.

Common questions

Can I drink the tap water in Brittany, France?

It depends on the town. 584 of 585 listed water systems in Brittany, France are low risk (99.8%).

Where do these ratings come from?

French Ministry of Health drinking water checks (data.gouv.fr). Period covered: January to September 2026.