In France, tap water hardness and quality vary greatly from department to department. Some areas like Île-de-France show hardness (TH) above 28°f (very hard water) while Brittany drops below 5°f (very soft water). Explore the interactive map below or search directly for your city to find out the situation in your area. All data comes from Hub'Eau, the official database of the French Ministry of Health, updated monthly.
Hub’Eau data (BRGM / French Ministry of Health), department averages. Click a department to see details.