Tap water hardness in Essonne
We have published hardness data for 194 cities in Essonne. The median is 25.9 °fH; the hardest water is in Bruyères-le-Châtel (38.3 °fH), the softest in Pussay (17.9 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Largest places, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Bruyères-le-Châtel | 38.3 | 383 | very hard |
| Fontenay-lès-Briis | 37.5 | 375 | very hard |
| Saint-Maurice-Montcouronne | 37.5 | 375 | very hard |
| Vaugrigneuse | 36.8 | 368 | very hard |
| Forges-les-Bains | 36.2 | 362 | very hard |
| Angervilliers | 36.2 | 362 | very hard |
| Le Val-Saint-Germain | 36.2 | 362 | very hard |
| Saint-Cyr-sous-Dourdan | 36.2 | 362 | very hard |
| Boussy-Saint-Antoine | 32.2 | 322 | very hard |
| Angerville | 31.5 | 315 | very hard |
| Briis-sous-Forges | 31.2 | 312 | very hard |
| Chalo-Saint-Mars | 30.5 | 305 | very hard |
| Lardy | 29.5 | 295 | very hard |
| Bouray-sur-Juine | 29.5 | 295 | very hard |
| Janville-sur-Juine | 29.5 | 295 | very hard |
| Villeneuve-sur-Auvers | 29.5 | 295 | very hard |
| Cerny | 29.3 | 293 | very hard |
| Itteville | 29.2 | 292 | very hard |
| Boissy-sous-Saint-Yon | 29 | 290 | very hard |
| Vert-le-Grand | 29 | 290 | very hard |
| Leudeville | 29 | 290 | very hard |
| Breux-Jouy | 29 | 290 | very hard |
| Saint-Yon | 29 | 290 | very hard |
| Saint-Vrain | 28.9 | 289 | very hard |
| Vert-le-Petit | 28.9 | 289 | very hard |
| Les Granges-le-Roi | 28.9 | 289 | very hard |
| La Ferté-Alais | 28.8 | 288 | very hard |
| D'Huison-Longueville | 28.8 | 288 | very hard |
| Baulne | 28.8 | 288 | very hard |
| Guigneville-sur-Essonne | 28.8 | 288 | very hard |
| Ballancourt-sur-Essonne | 28.6 | 286 | very hard |
| Saint-Germain-lès-Arpajon | 28.4 | 284 | very hard |
| Arpajon | 28.4 | 284 | very hard |
| Breuillet | 28.4 | 284 | very hard |
| Égly | 28.4 | 284 | very hard |
| Marolles-en-Hurepoix | 28.4 | 284 | very hard |
| Ollainville | 28.4 | 284 | very hard |
| Leuville-sur-Orge | 28.4 | 284 | very hard |
| La Norville | 28.4 | 284 | very hard |
| Cheptainville | 28.4 | 284 | very hard |
| Avrainville | 28.4 | 284 | very hard |
| Guibeville | 28.4 | 284 | very hard |
| Corbreuse | 28 | 280 | very hard |
| Dourdan | 27.7 | 277 | very hard |
| Juvisy-sur-Orge | 27.6 | 276 | very hard |
| Gironville-sur-Essonne | 27.4 | 274 | very hard |
| Boutigny-sur-Essonne | 27.3 | 273 | very hard |
| Sermaise | 27.3 | 273 | very hard |
| Roinville | 27.3 | 273 | very hard |
| Vayres-sur-Essonne | 27.3 | 273 | very hard |
| Boissy-le-Sec | 27.3 | 273 | very hard |
| Viry-Châtillon | 27.2 | 272 | very hard |
| Draveil | 27.1 | 271 | very hard |
| Yerres | 27.1 | 271 | very hard |
| Brunoy | 27.1 | 271 | very hard |
| Montgeron | 27.1 | 271 | very hard |
| Chilly-Mazarin | 27.1 | 271 | very hard |
| Crosne | 27.1 | 271 | very hard |
| Champcueil | 26.9 | 269 | very hard |
| Champlan | 26.9 | 269 | very hard |
| Chevannes | 26.9 | 269 | very hard |
| Fontenay-le-Vicomte | 26.9 | 269 | very hard |
| Mondeville | 26.9 | 269 | very hard |
| Longjumeau | 26.6 | 266 | very hard |
| Saulx-les-Chartreux | 26.6 | 266 | very hard |
| Ballainvilliers | 26.6 | 266 | very hard |
| Varennes-Jarcy | 26.5 | 265 | very hard |
| Savigny-sur-Orge | 26.1 | 261 | very hard |
| Écharcon | 26.1 | 261 | very hard |
| Les Ulis | 25.9 | 259 | very hard |
| Bures-sur-Yvette | 25.9 | 259 | very hard |
| La Ville-du-Bois | 25.9 | 259 | very hard |
| Nozay | 25.9 | 259 | very hard |
| Saclay | 25.9 | 259 | very hard |
| Villejust | 25.9 | 259 | very hard |
| Vauhallan | 25.9 | 259 | very hard |
| Épinay-sous-Sénart | 25.8 | 258 | very hard |
| Quincy-sous-Sénart | 25.8 | 258 | very hard |
| Gif-sur-Yvette | 25.7 | 257 | very hard |
| Saint-Michel-sur-Orge | 25.7 | 257 | very hard |
| Longpont-sur-Orge | 25.7 | 257 | very hard |
| Morangis | 25.6 | 256 | very hard |
| Épinay-sur-Orge | 25.6 | 256 | very hard |
| Paray-Vieille-Poste | 25.6 | 256 | very hard |
| Villiers-le-Bâcle | 25.3 | 253 | very hard |
| Saint-Aubin | 25.3 | 253 | very hard |
| Janvry | 25.3 | 253 | very hard |
| Athis-Mons | 25.2 | 252 | very hard |
| Maisse | 25.2 | 252 | very hard |
| Gometz-la-Ville | 25.2 | 252 | very hard |
| Soisy-sur-École | 25.2 | 252 | very hard |
| Oncy-sur-École | 25.1 | 251 | very hard |
| Palaiseau | 25 | 250 | very hard |
| Vigneux-sur-Seine | 24.9 | 249 | very hard |
| Saint-Pierre-du-Perray | 24.8 | 248 | very hard |
| Saint-Germain-lès-Corbeil | 24.8 | 248 | very hard |
| Saintry-sur-Seine | 24.8 | 248 | very hard |
| Tigery | 24.8 | 248 | very hard |
| Étiolles | 24.8 | 248 | very hard |
| Gometz-le-Châtel | 24.8 | 248 | very hard |
| Marcoussis | 24.7 | 247 | very hard |
| Montlhéry | 24.7 | 247 | very hard |
| Limours | 24.7 | 247 | very hard |
| Milly-la-Forêt | 24.6 | 246 | very hard |
| Moigny-sur-École | 24.6 | 246 | very hard |
| Sainte-Geneviève-des-Bois | 24.4 | 244 | very hard |
| Étampes | 24.4 | 244 | very hard |
| Villiers-sur-Orge | 24.4 | 244 | very hard |
| Linas | 24.3 | 243 | very hard |
| Évry-Courcouronnes | 24.2 | 242 | very hard |
| Ris-Orangis | 24.2 | 242 | very hard |
| Bondoufle | 24.2 | 242 | very hard |
| Lisses | 24.2 | 242 | very hard |
| Soisy-sur-Seine | 24.2 | 242 | very hard |
| Villabé | 24.2 | 242 | very hard |
| Le Coudray-Montceaux | 24.2 | 242 | very hard |
| Massy | 24.1 | 241 | very hard |
| Verrières-le-Buisson | 24.1 | 241 | very hard |
| Igny | 24.1 | 241 | very hard |
| Wissous | 24.1 | 241 | very hard |
| Bièvres | 24.1 | 241 | very hard |
| Morsang-sur-Orge | 24 | 240 | very hard |
| Fleury-Mérogis | 24 | 240 | very hard |
| Villemoisson-sur-Orge | 24 | 240 | very hard |
| Saclas | 24 | 240 | very hard |
| Ormoy-la-Rivière | 24 | 240 | very hard |
| Corbeil-Essonnes | 23.9 | 239 | very hard |
| Grigny | 23.9 | 239 | very hard |
| Brétigny-sur-Orge | 23.8 | 238 | very hard |
| Mennecy | 23.8 | 238 | very hard |
| Le Plessis-Pâté | 23.8 | 238 | very hard |
| Le Mérévillois | 23.8 | 238 | very hard |
| Ormoy | 23.8 | 238 | very hard |
| Guillerval | 23.7 | 237 | very hard |
| Dannemois | 23.6 | 236 | very hard |
| Morigny-Champigny | 22.7 | 227 | very hard |
| Brières-les-Scellés | 22.7 | 227 | very hard |
| Auvers-Saint-Georges | 22.6 | 226 | very hard |
| Chamarande | 22.6 | 226 | very hard |
| Étréchy | 22.4 | 224 | very hard |
| Les Molières | 22.3 | 223 | very hard |
| Boullay-les-Troux | 22.3 | 223 | very hard |
| Saint-Chéron | 21.6 | 216 | very hard |
| Bouville | 21.2 | 212 | very hard |
| Valpuiseaux | 21.2 | 212 | very hard |
| Boissy-le-Cutté | 20.7 | 207 | very hard |
| Villeconin | 20.7 | 207 | very hard |
| Orsay | 19.6 | 196 | very hard |
| Villebon-sur-Yvette | 19 | 190 | very hard |
| Pussay | 17.9 | 179 | hard |
Other places (44)
- Abbéville-la-Rivière 21.2 °fH
- Arrancourt 21.2 °fH
- Authon-la-Plaine 28.3 °fH
- Auvernaux 26.9 °fH
- Blandy 22.1 °fH
- Boigneville 24.6 °fH
- Bois-Herpin 21.2 °fH
- Boissy-la-Rivière 21.9 °fH
- Boutervilliers 28.3 °fH
- Brouy 22.1 °fH
- Buno-Bonnevaux 25.8 °fH
- Chalou-Moulineux 28.5 °fH
- Champmotteux 22 °fH
- Chatignonville 30.6 °fH
- Chauffour-lès-Étréchy 29.7 °fH
- Congerville-Thionville 28.5 °fH
- Courances 23.6 °fH
- Courdimanche-sur-Essonne 25.2 °fH
- Courson-Monteloup 37.5 °fH
- Fontaine-la-Rivière 21.2 °fH
- La Forêt-le-Roi 28.9 °fH
- La Forêt-Sainte-Croix 21.2 °fH
- Marolles-en-Beauce 21.2 °fH
- Mauchamps 29.7 °fH
- Mérobert 28.3 °fH
- Mespuits 21.2 °fH
- Monnerville 21.6 °fH
- Morsang-sur-Seine 24.2 °fH
- Nainville-les-Roches 26.9 °fH
- Orveau 28.8 °fH
- Pecqueuse 25.6 °fH
- Plessis-Saint-Benoist 28.3 °fH
- Prunay-sur-Essonne 27.4 °fH
- Puiselet-le-Marais 21.2 °fH
- Richarville 27.4 °fH
- Roinvilliers 21.2 °fH
- Saint-Cyr-la-Rivière 21.2 °fH
- Saint-Escobille 28.3 °fH
- Saint-Hilaire 30.5 °fH
- Saint-Jean-de-Beauregard 25.8 °fH
- Saint-Sulpice-de-Favières 29 °fH
- Souzy-la-Briche 29.7 °fH
- Torfou 29.7 °fH
- Videlles 24.5 °fH