Tap water hardness in Sicilia
We have published hardness data for 10 cities in Sicilia. The median is 20.5 °fH; the hardest water is in Gela (37 °fH), the softest in Licata (16 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Italian utilities report °f (French degrees); D.Lgs. 31/2001 recommends 15–50 °f.
Cities in Sicilia, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Gela | 37 | 370 | very hard |
| Niscemi | 29 | 290 | very hard |
| Palermo | 27.8 | 278 | very hard |
| Sciacca | 23 | 230 | very hard |
| Agrigento | 21 | 210 | very hard |
| Favara | 20 | 200 | very hard |
| Canicattì | 18 | 180 | very hard |
| Caltanissetta | 17 | 170 | hard |
| San Cataldo | 17 | 170 | hard |
| Licata | 16 | 160 | hard |