Tap water hardness in Luxembourg
We have published hardness data for 94 cities in Luxembourg. The median is 12 °fH; the hardest water is in Chiny (34.1 °fH), the softest in Bovigny (1.4 °fH).
65 % of these cities have hard or very hard water (over 120 mg/L).
Belgian suppliers report hardness in °f (French degrees); 1 °f = 10 mg/L CaCO₃.
Cities in Luxembourg, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Chiny | 34.1 | 341 | very hard |
| Jamoigne | 32.8 | 328 | very hard |
| Bellefontaine | 28.9 | 290 | very hard |
| Tintigny | 28 | 280 | very hard |
| Messancy | 27.7 | 277 | very hard |
| Sainte-Marie-sur-Semois | 27.1 | 271 | very hard |
| Durbuy | 27 | 270 | very hard |
| Nobressart | 26.9 | 269 | very hard |
| Noville | 26.8 | 268 | very hard |
| Thiaumont | 26.5 | 265 | very hard |
| Étalle | 26.1 | 262 | very hard |
| Vance | 26.1 | 262 | very hard |
| Attert | 25.4 | 255 | very hard |
| Bonnert | 25.4 | 254 | very hard |
| Grandhan | 25.3 | 253 | very hard |
| Athus | 25.1 | 252 | very hard |
| Bomal | 24 | 240 | very hard |
| Tohogne | 24 | 240 | very hard |
| Aubange | 22.6 | 226 | very hard |
| Halanzy | 22.6 | 226 | very hard |
| Heinsch | 22.4 | 224 | very hard |
| Mussy-la-Ville | 21.4 | 214 | very hard |
| Meix-devant-Virton | 21.2 | 212 | very hard |
| Rouvroy | 21.2 | 212 | very hard |
| Éthe | 20.5 | 205 | very hard |
| Latour | 20.5 | 205 | very hard |
| Saint-Mard | 19.8 | 198 | very hard |
| Virton | 19.3 | 193 | very hard |
| Izel | 18.7 | 187 | very hard |
| Barvaux | 18.1 | 181 | very hard |
| Wolkrange | 18.1 | 181 | very hard |
| Bertrix | 16.6 | 166 | hard |
| Herbeumont | 16.6 | 166 | hard |
| Longlier | 16.6 | 166 | hard |
| Orgeo | 16.6 | 166 | hard |
| Musson | 15.2 | 152 | hard |
| Saint-Léger | 14.3 | 143 | hard |
| Hamipré | 14.3 | 143 | hard |
| Neufchâteau | 14.2 | 142 | hard |
| Arlon | 14.1 | 141 | hard |
| Paliseul | 13.8 | 138 | hard |
| Autelbas | 13.4 | 135 | hard |
| Martelange | 13.3 | 133 | hard |
| Marenne | 12.7 | 127 | hard |
| Champlon | 12.6 | 126 | hard |
| Aye | 12 | 120 | hard |
| Bastogne | 12 | 120 | hard |
| Bertogne | 12 | 120 | hard |
| Fauvillers | 12 | 120 | hard |
| Flamierge | 12 | 120 | hard |
| La Roche-en-Ardenne | 12 | 120 | hard |
| Longchamps | 12 | 120 | hard |
| Longvilly | 12 | 120 | hard |
| Marche-en-Famenne | 12 | 120 | hard |
| On | 12 | 120 | hard |
| Rendeux | 12 | 120 | hard |
| Sainte-Ode | 12 | 120 | hard |
| Sibret | 12 | 120 | hard |
| Waha | 12 | 120 | hard |
| Wardin | 12 | 120 | hard |
| Wellin | 12 | 120 | hard |
| Habay-la-Neuve | 11.7 | 117 | moderately hard |
| Forrières | 11.1 | 111 | moderately hard |
| Hotton | 11.1 | 111 | moderately hard |
| Érezée | 11 | 110 | moderately hard |
| Soy | 11 | 110 | moderately hard |
| Nassogne | 10.9 | 109 | moderately hard |
| Assenois | 10.4 | 104 | moderately hard |
| Florenville | 9.9 | 100 | moderately hard |
| Tenneville | 9.8 | 98 | moderately hard |
| Toernich | 9.6 | 96 | moderately hard |
| Habay-la-Vieille | 9.2 | 92 | moderately hard |
| Limerlé | 7.7 | 77 | moderately hard |
| Ochamps | 6.5 | 65 | moderately hard |
| Rulles | 6.3 | 64 | moderately hard |
| Libramont | 6 | 60 | moderately hard |
| Recogne | 6 | 60 | moderately hard |
| Vaux-sur-Sûre | 6 | 60 | moderately hard |
| Gouvy | 5.7 | 57 | soft |
| Saint-Hubert | 5.5 | 56 | soft |
| Houffalize | 5.3 | 54 | soft |
| Bras | 4.5 | 45 | soft |
| Saint-Pierre | 4.5 | 45 | soft |
| Bihain | 4.5 | 45 | soft |
| Léglise | 4.3 | 43 | soft |
| Daverdisse | 3.9 | 39 | soft |
| Libin | 3.2 | 32 | soft |
| Bouillon | 2.9 | 29 | soft |
| Vielsalm | 2.7 | 27 | soft |
| Tellin | 2.6 | 26 | soft |
| Arville | 2.5 | 25 | soft |
| Grand-Halleux | 2.5 | 25 | soft |
| Manhay | 2.3 | 23 | soft |
| Bovigny | 1.4 | 14 | soft |