Cusy
No. Tap water in Cusy is critical risk. Repeated bacterial failures: use bottled or boiled water and check local advice.
Is it safe?
Ca du Grand Annecy
Critical risk
Repeated bacterial failures: use bottled or boiled water and check local advice
81.8% of bacterial tests passed and 100% of chemical tests passed, from 11 samples.
Supplied by Ca du Grand Annecy.
Tests over a limit this year: Enterococci bacteria.
Hardness: Moderate (21.9 °f).
Source
French Ministry of Health drinking water checks (data.gouv.fr).
Period covered: January to September 2026.
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 Cusy, Auvergne-Rhône-Alpes?
No. Tap water in Cusy is critical risk. Repeated bacterial failures: use bottled or boiled water and check local advice.
Where do these ratings come from?
French Ministry of Health drinking water checks (data.gouv.fr). Period covered: January to September 2026.