Saint-Josse
Tap water in Saint-Josse is medium risk. Generally fine, but a few tests failed this year.
Is it safe?
C.a. des 2 Baies en Montreuillois
Medium risk
Generally fine, but a few tests failed this year
100% of bacterial tests passed and 89.5% of chemical tests passed, from 19 samples.
Supplied by C.a. des 2 Baies en Montreuillois.
Tests over a limit this year: Pesticide residue (chlorothalonil), Pesticide residue (chloridazon), Total pesticides.
Hardness: Very hard (32.5 °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 Saint-Josse, Hauts-de-France?
Tap water in Saint-Josse is medium risk. Generally fine, but a few tests failed this year.
Where do these ratings come from?
French Ministry of Health drinking water checks (data.gouv.fr). Period covered: January to September 2026.