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Tap water quality, city by city, with real official data and tested guides to help you manage it daily.

Data from Hub'Eau (BRGM / French Ministry of Health), updated monthly.
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Water quality / Hauts-de-France

Water quality in the Hauts-de-France region

The Hauts-de-France region has 5 departments. The average water hardness is 33.2°f with an average quality score of 5.5/10. Click on a department to see the city-by-city breakdown.

Région Hauts-de-France

Departments by water quality

#1Somme28 communes6.2/1029.5°fDure#2Aisne28 communes5.7/1035.1°fTrès dure#3Oise67 communes5.4/1034°fTrès dure#4Nord194 communes5.3/1035°fTrès dure#5Pas-de-Calais141 communes5/1032.5°fTrès dure

Hub'Eau data (BRGM / Ministry of Health). Quality score calculated on 5 parameters: nitrates, PFAS, pH, free chlorine, turbidity.