Tap water hardness in West Greece
We have published hardness data for 11 cities in West Greece. The median is 225 mg/L; the hardest water is in Rio (383 mg/L), the softest in Agios Vasileios (113 mg/L).
91 % of these cities have hard or very hard water (over 120 mg/L).
Greek utilities report total hardness in mg/L CaCO₃.
Cities in West Greece, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Rio | 383 | 383 | very hard |
| Royitika | 297 | 297 | very hard |
| Paralia | 292 | 292 | very hard |
| Aktaio | 251 | 251 | very hard |
| Elikistra | 238 | 238 | very hard |
| Vrachnaiika | 225 | 225 | very hard |
| Saravali | 211 | 211 | very hard |
| Mindiloglion | 177 | 177 | hard |
| Ovria | 157 | 157 | hard |
| Patras | 155 | 155 | hard |
| Agios Vasileios | 113 | 113 | moderately hard |