Water Hardness Atlas ZIP / postcode

Tap water hardness in Seine-Maritime

We have published hardness data for 682 cities in Seine-Maritime. The median is 28.5 °fH; the hardest water is in Sotteville-sur-Mer (35.3 °fH), the softest in Yvetot (15.3 °fH).

100 % of these cities have hard or very hard water (over 120 mg/L).

Each dot is a place with published data; colour shows the hardness band.

Largest places, hardest first

°fHmg/L
Saint-Pierre-lès-Elbeuf31.2312very hard
Forges-les-Eaux31310very hard
Sotteville-lès-Rouen30.8308very hard
Saint-Étienne-du-Rouvray30.8308very hard
Le Petit-Quevilly30.8308very hard
Petit-Couronne30.8308very hard
Buchy30.8308very hard
Tôtes30.8308very hard
Oissel-sur-Seine30.6306very hard
Tourville-la-Rivière30.4304very hard
Préaux30.4304very hard
Londinières30.3303very hard
Luneray30.2302very hard
Blainville-Crevon30.2302very hard
Le Mesnil-Esnard30300very hard
Bonsecours30300very hard
Franqueville-Saint-Pierre30300very hard
Boos30300very hard
Amfreville-la-Mi-Voie30300very hard
Houppeville30300very hard
Belbeuf30300very hard
Les Authieux-sur-le-Port-Saint-Ouen30300very hard
Ymare30300very hard
Saint-Martin-Osmonville29.9299very hard
Quincampoix29.8298very hard
Val-de-Scie29.8298very hard
Fontaine-le-Bourg29.8298very hard
Sahurs29.8298very hard
Petit-Caux29.7297very hard
Saint-Nicolas-d'Aliermont29.7297very hard
Hautot-sur-Mer29.7297very hard
Gournay-en-Bray29.6296very hard
Sainte-Marguerite-sur-Duclair29.6296very hard
Ferrières-en-Bray29.6296very hard
Val-de-Saâne29.6296very hard
Eslettes29.4294very hard
Montmain29.3293very hard
Bihorel29.1291very hard
Neufchâtel-en-Bray29.1291very hard
Saint-Valery-en-Caux29.1291very hard
Isneauville29.1291very hard
Néville29.1291very hard
Dieppe29290very hard
Offranville29290very hard
Blangy-sur-Bresle29290very hard
Saint-Saëns29290very hard
Bacqueville-en-Caux29290very hard
Mont-Saint-Aignan28.9289very hard
Canteleu28.9289very hard
Bois-Guillaume28.9289very hard
Montville28.9289very hard
Criel-sur-Mer28.9289very hard
Rouxmesnil-Bouteilles28.9289very hard
Saint-Paër28.9289very hard
Incheville28.8288very hard
Saint-Sauveur-d'Émalleville28.8288very hard
Cany-Barville28.5285very hard
Yébleron28.5285very hard
Vatteville-la-Rue28.5285very hard
Saint-Léger-du-Bourg-Denis28.3283very hard
Clères28.3283very hard
Saint-Aubin-lès-Elbeuf28.2282very hard
Cléon28.2282very hard
Aumale28.2282very hard
Goderville28.1281very hard
Arques-la-Bataille28.1281very hard
Tourville-sur-Arques28.1281very hard
Bosc-le-Hard28280very hard
La Feuillie28280very hard
Épouville27.8278very hard
Bréauté27.8278very hard
Manéglise27.8278very hard
Rolleville27.8278very hard
Lanquetot27.8278very hard
Rouen27.7277very hard
Bretteville-du-Grand-Caux27.7277very hard
Montivilliers27.4274very hard
Darnétal27.4274very hard
Saint-Martin-du-Vivier27.4274very hard
Le Tréport27.3273very hard
Saint-Jacques-sur-Darnétal27.3273very hard
Port-Jérôme-sur-Seine27.2272very hard
La Neuville-Chant-d'Oisel27270very hard
Le Grand-Quevilly26.8268very hard
Pavilly26.8268very hard
Elbeuf26.7267very hard
Villers-Écalles26.6266very hard
Barentin26.4264very hard
Eu26.4264very hard
Nointot26.4264very hard
La Londe26.3263very hard
Lillebonne26.2262very hard
Envermeu26.2262very hard
Roumare26.2262very hard
Saint-Jean-du-Cardonnay26.2262very hard
Pissy-Pôville26.2262very hard
Anneville-Ambourville26.1261very hard
Étretat25.9259very hard
Gaillefontaine25.8258very hard
Gruchet-le-Valasse25.7257very hard
Grand-Couronne25.6256very hard
Arelaune-en-Seine25.6256very hard
Saint-Pierre-de-Varengeville25.5255very hard
Saint-Aubin-Routot25.5255very hard
Saint-Jouin-Bruneval25.4254very hard
Les Grandes-Ventes25.4254very hard
La Remuée25.4254very hard
Saint-Laurent-de-Brèvedent25.3253very hard
Caudebec-lès-Elbeuf25.2252very hard
Octeville-sur-Mer25.2252very hard
Rives-en-Seine25.2252very hard
Cauville-sur-Mer25.2252very hard
Saint-Arnoult25.2252very hard
Gonfreville-l'Orcher25.1251very hard
Saint-Romain-de-Colbosc25250very hard
Jumièges25250very hard
Saint-Martin-de-Boscherville25250very hard
La Cerlangue25250very hard
Maromme24.8248very hard
Déville-lès-Rouen24.8248very hard
Notre-Dame-de-Bondeville24.8248very hard
Hénouville24.8248very hard
Montigny24.8248very hard
Le Houlme24.7247very hard
Malaunay24.6246very hard
Bolbec24.5245very hard
Duclair24.5245very hard
Le Havre24.2242very hard
Harfleur24.1241very hard
Rogerville24.1241very hard
Tancarville24.1241very hard
Saint-Nicolas-de-la-Taille24240very hard
Beuzeville-la-Grenier24240very hard
Terres-de-Caux23.1231very hard
Saint-Léonard23230very hard
Le Trait22.2222very hard
Saint Martin de l'If22.1221very hard
Sainte-Marie-des-Champs22.1221very hard
Doudeville21.9219very hard
Limésy21.5215very hard
Fécamp21.1211very hard
Froberville18.7187very hard
Les Loges18.7187very hard
Yerville16.7167hard
Martin-Église16.4164hard
Ourville-en-Caux15.6156hard
Yvetot15.3153hard
Valliquerville15.3153hard
Les Hauts-de-Caux15.3153hard
Allouville-Bellefosse15.3153hard

Other places (532)

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