Tap water hardness in Charente-Maritime
We have published hardness data for 460 cities in Charente-Maritime. The median is 32.9 °fH; the hardest water is in Plassay (38.1 °fH), the softest in Charron (16.4 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Largest places, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Bourgneuf | 38 | 380 | very hard |
| Matha | 36.8 | 368 | very hard |
| Corme-Royal | 36.5 | 365 | very hard |
| Saint-Romain-de-Benet | 36.5 | 365 | very hard |
| Sablonceaux | 36.5 | 365 | very hard |
| Pont-l'Abbé-d'Arnoult | 35.8 | 358 | very hard |
| Saujon | 35.7 | 357 | very hard |
| Arvert | 35.7 | 357 | very hard |
| Saint-Sulpice-de-Royan | 35.7 | 357 | very hard |
| Breuillet | 35.7 | 357 | very hard |
| Étaules | 35.7 | 357 | very hard |
| Les Mathes | 35.7 | 357 | very hard |
| Chaillevette | 35.7 | 357 | very hard |
| Saint-Augustin | 35.7 | 357 | very hard |
| Corme-Écluse | 35.7 | 357 | very hard |
| Saint-Agnant | 35.5 | 355 | very hard |
| Trizay | 35.5 | 355 | very hard |
| Soubise | 35.3 | 353 | very hard |
| Port-des-Barques | 35.3 | 353 | very hard |
| Saint-Nazaire-sur-Charente | 35.3 | 353 | very hard |
| Le Gua | 35 | 350 | very hard |
| Saint-Just-Luzac | 35 | 350 | very hard |
| Meursac | 35 | 350 | very hard |
| Sainte-Gemme | 35 | 350 | very hard |
| Nieulle-sur-Seudre | 35 | 350 | very hard |
| Saint-André-de-Lidon | 35 | 350 | very hard |
| Rétaud | 35 | 350 | very hard |
| Médis | 34.9 | 349 | very hard |
| Semussac | 34.9 | 349 | very hard |
| Saint-Georges-d'Oléron | 34.7 | 347 | very hard |
| Saint-Denis-d'Oléron | 34.7 | 347 | very hard |
| La Tremblade | 34.6 | 346 | very hard |
| Saint-Jean-d'Angély | 34.5 | 345 | very hard |
| Échillais | 34.5 | 345 | very hard |
| Mirambeau | 34.5 | 345 | very hard |
| Asnières-la-Giraud | 34.3 | 343 | very hard |
| Bourcefranc-le-Chapus | 34.2 | 342 | very hard |
| Burie | 34.2 | 342 | very hard |
| Royan | 34.1 | 341 | very hard |
| Saint-Georges-des-Coteaux | 34.1 | 341 | very hard |
| Thénac | 34.1 | 341 | very hard |
| Saint-Hilaire-de-Villefranche | 34.1 | 341 | very hard |
| Chermignac | 34.1 | 341 | very hard |
| Nieul-lès-Saintes | 34.1 | 341 | very hard |
| Berneuil | 34.1 | 341 | very hard |
| Tesson | 34.1 | 341 | very hard |
| Pérignac | 34.1 | 341 | very hard |
| Saint-Palais-sur-Mer | 34 | 340 | very hard |
| Écoyeux | 33.9 | 339 | very hard |
| Vaux-sur-Mer | 33.8 | 338 | very hard |
| Fontcouverte | 33.8 | 338 | very hard |
| Bussac-sur-Charente | 33.8 | 338 | very hard |
| Marennes-Hiers-Brouage | 33.6 | 336 | very hard |
| Port-d'Envaux | 33.5 | 335 | very hard |
| La Chapelle-des-Pots | 33.5 | 335 | very hard |
| Meschers-sur-Gironde | 33.1 | 331 | very hard |
| Cozes | 33.1 | 331 | very hard |
| Saint-Georges-de-Didonne | 33 | 330 | very hard |
| Aulnay | 32.9 | 329 | very hard |
| Chaniers | 32.1 | 321 | very hard |
| Saint-Germain-de-Lusignan | 31.9 | 319 | very hard |
| Le Château-d'Oléron | 31.5 | 315 | very hard |
| Saint-Trojan-les-Bains | 31.5 | 315 | very hard |
| Beurlay | 31.5 | 315 | very hard |
| La Rochelle | 31.3 | 313 | very hard |
| Saint-Pierre-d'Oléron | 31.2 | 312 | very hard |
| Saint-Genis-de-Saintonge | 31.2 | 312 | very hard |
| Chérac | 31.1 | 311 | very hard |
| Châtelaillon-Plage | 31 | 310 | very hard |
| Pons | 30.9 | 309 | very hard |
| Dolus-d'Oléron | 30.6 | 306 | very hard |
| Le Grand-Village-Plage | 30.6 | 306 | very hard |
| Essouvert | 28.9 | 289 | very hard |
| La Jarrie | 28.7 | 287 | very hard |
| Clavette | 28.7 | 287 | very hard |
| Croix-Chapeau | 28.7 | 287 | very hard |
| Montguyon | 28.5 | 285 | very hard |
| Montlieu-la-Garde | 28.5 | 285 | very hard |
| Chevanceaux | 28.5 | 285 | very hard |
| Tonnay-Boutonne | 28.4 | 284 | very hard |
| Saint-Savinien | 28.2 | 282 | very hard |
| Aytré | 28.1 | 281 | very hard |
| Saint-Rogatien | 28.1 | 281 | very hard |
| Périgny | 28 | 280 | very hard |
| Montendre | 27.9 | 279 | very hard |
| Gémozac | 27.4 | 274 | very hard |
| Muron | 26.3 | 263 | very hard |
| Salles-sur-Mer | 26.2 | 262 | very hard |
| Saint-Hippolyte | 26.1 | 261 | very hard |
| Saint-Christophe | 25.9 | 259 | very hard |
| Puilboreau | 25.8 | 258 | very hard |
| Jonzac | 25.7 | 257 | very hard |
| Cercoux | 25.2 | 252 | very hard |
| Saint-Porchaire | 25.1 | 251 | very hard |
| Saint-Laurent-de-la-Prée | 24.6 | 246 | very hard |
| Saint-Aigulin | 24.6 | 246 | very hard |
| Breuil-Magné | 24.6 | 246 | very hard |
| Yves | 24.6 | 246 | very hard |
| Ciré-d'Aunis | 24.6 | 246 | very hard |
| Sainte-Soulle | 24.3 | 243 | very hard |
| Vérines | 24.3 | 243 | very hard |
| Fouras | 24.2 | 242 | very hard |
| Courçon | 24.2 | 242 | very hard |
| Les Gonds | 24 | 240 | very hard |
| Saint-Jean-de-Liversay | 23.8 | 238 | very hard |
| Nuaillé-d'Aunis | 23.8 | 238 | very hard |
| Angliers | 23.8 | 238 | very hard |
| Angoulins | 23.7 | 237 | very hard |
| La Jarne | 23.7 | 237 | very hard |
| Saint-Médard-d'Aunis | 23.7 | 237 | very hard |
| Saint-Vivien | 23.7 | 237 | very hard |
| Rochefort | 23.5 | 235 | very hard |
| Tonnay-Charente | 23.4 | 234 | very hard |
| Bords | 23.4 | 234 | very hard |
| Cabariot | 23.4 | 234 | very hard |
| Lussant | 23.4 | 234 | very hard |
| Surgères | 23.3 | 233 | very hard |
| La Devise | 23.3 | 233 | very hard |
| La Ronde | 23.3 | 233 | very hard |
| Marans | 23.1 | 231 | very hard |
| Saint-Sauveur-d'Aunis | 23.1 | 231 | very hard |
| Vergeroux | 23.1 | 231 | very hard |
| Saintes | 23 | 230 | very hard |
| Saint-Pierre-La-Noue | 22.9 | 229 | very hard |
| Benon | 22.8 | 228 | very hard |
| Saint-Georges-du-Bois | 22.7 | 227 | very hard |
| Saint-Mard | 22.5 | 225 | very hard |
| Aigrefeuille-d'Aunis | 22.1 | 221 | very hard |
| Le Thou | 22.1 | 221 | very hard |
| Thairé | 22.1 | 221 | very hard |
| Forges | 22.1 | 221 | very hard |
| Dompierre-sur-Mer | 21.6 | 216 | very hard |
| Saint-Xandre | 21.6 | 216 | very hard |
| Andilly | 21.6 | 216 | very hard |
| Saint-Ouen-d'Aunis | 21.6 | 216 | very hard |
| Le Bois-Plage-en-Ré | 20.8 | 208 | very hard |
| Ars-en-Ré | 20.8 | 208 | very hard |
| La Couarde-sur-Mer | 20.8 | 208 | very hard |
| Lagord | 20.5 | 205 | very hard |
| Nieul-sur-Mer | 20.5 | 205 | very hard |
| Marsilly | 20.5 | 205 | very hard |
| L'Houmeau | 20.5 | 205 | very hard |
| Villedoux | 20.5 | 205 | very hard |
| Esnandes | 20.5 | 205 | very hard |
| Sainte-Marie-de-Ré | 20.2 | 202 | very hard |
| La Flotte | 20.2 | 202 | very hard |
| Saint-Martin-de-Ré | 20.2 | 202 | very hard |
| Rivedoux-Plage | 19.9 | 199 | very hard |
| Bussac-Forêt | 17 | 170 | hard |
| Charron | 16.4 | 164 | hard |
Other places (310)
- Agudelle 32.9 °fH
- Allas-Bocage 30.3 °fH
- Allas-Champagne 33.3 °fH
- Anais 23.1 °fH
- Annepont 34.9 °fH
- Annezay 26.3 °fH
- Antezant-la-Chapelle 33.4 °fH
- Arces 33.1 °fH
- Archiac 33.3 °fH
- Archingeay 23.4 °fH
- Ardillières 22.1 °fH
- Arthenac 33.3 °fH
- Aujac 36.8 °fH
- Aumagne 36.8 °fH
- Authon-Ébéon 36.8 °fH
- Avy 34.4 °fH
- Bagnizeau 36.8 °fH
- Balanzac 36.5 °fH
- Ballans 37.6 °fH
- Ballon 22.1 °fH
- Barzan 33.1 °fH
- Bazauges 35.6 °fH
- Beaugeay 33.8 °fH
- Beauvais-sur-Matha 35.6 °fH
- Bedenac 25.2 °fH
- Belluire 35 °fH
- Bercloux 34.3 °fH
- Bernay-Saint-Martin 23.6 °fH
- Bignay 34 °fH
- Biron 34.4 °fH
- Blanzac-lès-Matha 36.8 °fH
- Blanzay-sur-Boutonne 33.7 °fH
- Bois 35 °fH
- Boisredon 32.9 °fH
- Boresse-et-Martron 28.5 °fH
- Boscamnant 25.2 °fH
- Bougneau 34.1 °fH
- Bouhet 23.1 °fH
- Boutenac-Touvent 33.1 °fH
- Bran 32.9 °fH
- Bresdon 35.6 °fH
- Breuil-la-Réorte 23.1 °fH
- Brie-sous-Archiac 30.3 °fH
- Brie-sous-Matha 35.2 °fH
- Brie-sous-Mortagne 33.1 °fH
- Brives-sur-Charente 30.6 °fH
- Brizambourg 33.9 °fH
- Celles 33.3 °fH
- Chadenac 34.4 °fH
- Chambon 22.1 °fH
- Chamouillac 32.9 °fH
- Champagnac 33.3 °fH
- Champagne 35 °fH
- Champagnolles 35 °fH
- Champdolent 23.4 °fH
- Chantemerle-sur-la-Soie 23.6 °fH
- Chartuzac 32.9 °fH
- Chatenet 28.5 °fH
- Chaunac 32.9 °fH
- Chenac-Saint-Seurin-d'Uzet 33.1 °fH
- Chepniers 28.5 °fH
- Cherbonnières 34 °fH
- Chives 35.3 °fH
- Cierzac 33.3 °fH
- Clam 31.9 °fH
- Clérac 25.2 °fH
- Clion 31.9 °fH
- Coivert 33.7 °fH
- Colombiers 34.1 °fH
- Consac 30.3 °fH
- Contré 34.5 °fH
- Corignac 17 °fH
- Coulonges 34.4 °fH
- Courant 23.6 °fH
- Courcelles 33.5 °fH
- Courcerac 36.8 °fH
- Courcoury 24 °fH
- Courpignac 32.9 °fH
- Coux 32.9 °fH
- Cram-Chaban 22.8 °fH
- Cravans 35 °fH
- Crazannes 33.5 °fH
- Cressé 36.8 °fH
- Dampierre-sur-Boutonne 33.7 °fH
- Dœuil-sur-le-Mignon 22.5 °fH
- Dompierre-sur-Charente 30.6 °fH
- Échebrune 34.4 °fH
- Écurat 34.1 °fH
- Épargnes 33.1 °fH
- Expiremont 32.9 °fH
- Fenioux 34 °fH
- Ferrières 23.1 °fH
- Fléac-sur-Seugne 31.9 °fH
- Floirac 31.9 °fH
- Fontaine-Chalendray 34.9 °fH
- Fontaines-d'Ozillac 32.5 °fH
- Fontenet 34.3 °fH
- Geay 31.5 °fH
- Genouillé 26.3 °fH
- Germignac 33.3 °fH
- Gibourne 34.5 °fH
- Givrezac 35 °fH
- Gourvillette 35.6 °fH
- Grandjean 34 °fH
- Grézac 33.1 °fH
- Guitinières 31.9 °fH
- Haimps 36.8 °fH
- Île-d'Aix 22.1 °fH
- Jarnac-Champagne 33.3 °fH
- Jazennes 34.1 °fH
- Juicq 34.9 °fH
- Jussas 32.9 °fH
- L'Éguille 35.7 °fH
- La Barde 24.6 °fH
- La Brée-les-Bains 34.7 °fH
- La Brousse 36.8 °fH
- La Clisse 36.5 °fH
- La Clotte 24.6 °fH
- La Croix-Comtesse 33.3 °fH
- La Genétouze 25.2 °fH
- La Grève-sur-Mignon 22.8 °fH
- La Gripperie-Saint-Symphorien 35 °fH
- La Jard 34.1 °fH
- La Jarrie-Audouin 33.3 °fH
- La Laigne 22.8 °fH
- La Vallée 26.1 °fH
- La Vergne 23.6 °fH
- La Villedieu 34.5 °fH
- Landes 23.6 °fH
- Landrais 26.3 °fH
- Le Chay 35.7 °fH
- Le Douhet 33.9 °fH
- Le Fouilloux 25.2 °fH
- Le Gicq 36.8 °fH
- Le Gué-d'Alleré 23.1 °fH
- Le Mung 33.5 °fH
- Le Pin 28.5 °fH
- Le Seure 36.8 °fH
- Léoville 32.9 °fH
- Les Éduts 36.6 °fH
- Les Églises-d'Argenteuil 33.5 °fH
- Les Essards 25.1 °fH
- Les Nouillers 34 °fH
- Les Portes-en-Ré 20.8 °fH
- Les Touches-de-Périgny 36.8 °fH
- Loire-les-Marais 24.6 °fH
- Loiré-sur-Nie 36.6 °fH
- Loix 20.8 °fH
- Longèves 21.6 °fH
- Lonzac 33.3 °fH
- Loulay 33.3 °fH
- Louzignac 35.2 °fH
- Lozay 23.5 °fH
- Luchat 36.5 °fH
- Lussac 31.9 °fH
- Macqueville 37.6 °fH
- Marignac 34.4 °fH
- Marsais 22.5 °fH
- Massac 36.8 °fH
- Mazeray 34 °fH
- Mazerolles 35 °fH
- Mérignac 28.5 °fH
- Messac 32.9 °fH
- Meux 33.3 °fH
- Migré 22.5 °fH
- Migron 36.8 °fH
- Moëze 35.3 °fH
- Mons 36.8 °fH
- Montils 34.1 °fH
- Montpellier-de-Médillan 35 °fH
- Montroy 38 °fH
- Moragne 23.4 °fH
- Mornac-sur-Seudre 35.7 °fH
- Mortagne-sur-Gironde 33.1 °fH
- Mortiers 32.9 °fH
- Mosnac 31.9 °fH
- Nachamps 23.6 °fH
- Nancras 36.5 °fH
- Nantillé 34.3 °fH
- Néré 36.6 °fH
- Neuillac 37 °fH
- Neulles 37 °fH
- Neuvicq 28.5 °fH
- Neuvicq-le-Château 37.6 °fH
- Nieul-le-Virouil 30.3 °fH
- Orignolles 28.5 °fH
- Ozillac 32.5 °fH
- Paillé 34.5 °fH
- Pessines 36.5 °fH
- Pisany 36.5 °fH
- Plassac 31.2 °fH
- Plassay 38.1 °fH
- Polignac 28.5 °fH
- Pommiers-Moulons 32.9 °fH
- Pouillac 28.5 °fH
- Poursay-Garnaud 33.5 °fH
- Préguillac 34.1 °fH
- Prignac 36.8 °fH
- Puy-du-Lac 23.4 °fH
- Puyravault 22.7 °fH
- Puyrolland 24.4 °fH
- Réaux sur Trèfle 33.3 °fH
- Rioux 35 °fH
- Rives-de-Boutonne 33.7 °fH
- Romazières 36.6 °fH
- Romegoux 31.5 °fH
- Rouffiac 30.6 °fH
- Rouffignac 32.9 °fH
- Saint-Bonnet-sur-Gironde 21.8 °fH
- Saint-Bris-des-Bois 32.7 °fH
- Saint-Césaire 32.7 °fH
- Saint-Ciers-Champagne 32.9 °fH
- Saint-Ciers-du-Taillon 30.9 °fH
- Saint-Clément-des-Baleines 20.8 °fH
- Saint-Coutant-le-Grand 23.4 °fH
- Saint-Crépin 26.3 °fH
- Saint-Cyr-du-Doret 23.3 °fH
- Saint-Dizant-du-Bois 30.3 °fH
- Saint-Dizant-du-Gua 30.9 °fH
- Saint-Eugène 33.3 °fH
- Saint-Félix 22.5 °fH
- Saint-Froult 35.3 °fH
- Saint-Georges-Antignac 31.9 °fH
- Saint-Georges-des-Agoûts 30.3 °fH
- Saint-Germain-de-Vibrac 32.9 °fH
- Saint-Germain-du-Seudre 35 °fH
- Saint-Grégoire-d'Ardennes 31.9 °fH
- Saint-Hilaire-du-Bois 31.9 °fH
- Saint-Jean-d'Angle 35 °fH
- Saint-Julien-de-l'Escap 33.5 °fH
- Saint-Léger 34.1 °fH
- Saint-Loup 23.6 °fH
- Saint-Maigrin 32.9 °fH
- Saint-Mandé-sur-Brédoire 34.5 °fH
- Saint-Martial 33.7 °fH
- Saint-Martial-de-Mirambeau 30.3 °fH
- Saint-Martial-de-Vitaterne 25 °fH
- Saint-Martial-sur-Né 33.3 °fH
- Saint-Martin-d'Ary 28.5 °fH
- Saint-Martin-de-Coux 24.6 °fH
- Saint-Martin-de-Juillers 34.8 °fH
- Saint-Médard 32.9 °fH
- Saint-Ouen-la-Thène 35.6 °fH
- Saint-Palais-de-Négrignac 28.5 °fH
- Saint-Palais-de-Phiolin 35 °fH
- Saint-Pardoult 33.5 °fH
- Saint-Pierre-d'Amilly 22.5 °fH
- Saint-Pierre-de-Juillers 33.5 °fH
- Saint-Pierre-de-l'Isle 33.7 °fH
- Saint-Pierre-du-Palais 25.2 °fH
- Saint-Quantin-de-Rançanne 35 °fH
- Saint-Saturnin-du-Bois 22.5 °fH
- Saint-Sauvant 32.7 °fH
- Saint-Seurin-de-Palenne 34.1 °fH
- Saint-Sever-de-Saintonge 30.6 °fH
- Saint-Séverin-sur-Boutonne 33.7 °fH
- Saint-Sigismond-de-Clermont 31.9 °fH
- Saint-Simon-de-Bordes 32.9 °fH
- Saint-Simon-de-Pellouaille 35 °fH
- Saint-Sorlin-de-Conac 30.3 °fH
- Saint-Sornin 35 °fH
- Saint-Sulpice-d'Arnoult 36.2 °fH
- Saint-Thomas-de-Conac 30.3 °fH
- Saint-Vaize 33.8 °fH
- Sainte-Colombe 28.5 °fH
- Sainte-Lheurine 33.3 °fH
- Sainte-Même 34.3 °fH
- Sainte-Radegonde 35.5 °fH
- Sainte-Ramée 30.9 °fH
- Saleignes 36.6 °fH
- Salignac-de-Mirambeau 32.9 °fH
- Salignac-sur-Charente 31.6 °fH
- Seigné 36.6 °fH
- Semillac 30.3 °fH
- Semoussac 30.3 °fH
- Siecq 37.6 °fH
- Sonnac 35.2 °fH
- Soubran 34.5 °fH
- Soulignonne 36.5 °fH
- Souméras 27.9 °fH
- Sousmoulins 32.9 °fH
- Taillant 34 °fH
- Taillebourg 34.9 °fH
- Talmont-sur-Gironde 33.1 °fH
- Tanzac 35 °fH
- Taugon 23.3 °fH
- Ternant 34 °fH
- Thaims 35 °fH
- Thézac 35 °fH
- Thors 35.2 °fH
- Torxé 28.8 °fH
- Tugéras-Saint-Maurice 32.9 °fH
- Vanzac 32.9 °fH
- Varaize 33.5 °fH
- Varzay 36.5 °fH
- Vénérand 33.9 °fH
- Vergné 33.3 °fH
- Vervant 33.5 °fH
- Vibrac 32.9 °fH
- Villars-en-Pons 34.1 °fH
- Villars-les-Bois 32.7 °fH
- Villemorin 34.5 °fH
- Villeneuve-la-Comtesse 32.4 °fH
- Villexavier 32.9 °fH
- Villiers-Couture 35.3 °fH
- Vinax 34.5 °fH
- Virollet 27.4 °fH
- Virson 22.1 °fH
- Voissay 34 °fH
- Vouhé 22.7 °fH