Tap water hardness in Attica
We have published hardness data for 25 cities in Attica. The median is 150 mg/L; the hardest water is in Acharnés (150 mg/L), the softest in Zográfos (150 mg/L).
100 % of these cities have hard or very hard water (over 120 mg/L).
Greek utilities report total hardness in mg/L CaCO₃.
Cities in Attica, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Acharnés | 150 | 150 | hard |
| Agía Paraskeví | 150 | 150 | hard |
| Agios Dimitrios | 150 | 150 | hard |
| Aigáleo | 150 | 150 | hard |
| Athens | 150 | 150 | hard |
| Fylí | 150 | 150 | hard |
| Galátsi | 150 | 150 | hard |
| Glyfáda | 150 | 150 | hard |
| Ílion | 150 | 150 | hard |
| Ilioúpoli | 150 | 150 | hard |
| Irákleio | 150 | 150 | hard |
| Kallithéa | 150 | 150 | hard |
| Keratsíni | 150 | 150 | hard |
| Khalándrion | 150 | 150 | hard |
| Korydallós | 150 | 150 | hard |
| Maroúsi | 150 | 150 | hard |
| Néa Ionía | 150 | 150 | hard |
| Néa Smýrni | 150 | 150 | hard |
| Níkaia | 150 | 150 | hard |
| Palaió Fáliro | 150 | 150 | hard |
| Peristéri | 150 | 150 | hard |
| Petroúpolis | 150 | 150 | hard |
| Piraeus | 150 | 150 | hard |
| Výronas | 150 | 150 | hard |
| Zográfos | 150 | 150 | hard |