Tap water hardness in Campania
We have published hardness data for 33 cities in Campania. The median is 40 °fH; the hardest water is in Angri (63 °fH), the softest in Avellino (18.3 °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 Campania, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Angri | 63 | 630 | very hard |
| Nola | 55 | 550 | very hard |
| Sant'Antonio Abate | 51 | 510 | very hard |
| Marigliano | 50 | 500 | very hard |
| Brusciano | 44 | 440 | very hard |
| Poggiomarino | 44 | 440 | very hard |
| Scafati | 44 | 440 | very hard |
| Terzigno | 44 | 440 | very hard |
| Boscoreale | 43 | 430 | very hard |
| Castellammare di Stabia | 43 | 430 | very hard |
| Pompei | 43 | 430 | very hard |
| Torre Annunziata | 43 | 430 | very hard |
| Nocera Inferiore | 42 | 420 | very hard |
| Torre del Greco | 42 | 420 | very hard |
| Ercolano | 41 | 410 | very hard |
| Casalnuovo di Napoli | 40 | 400 | very hard |
| Cercola | 40 | 400 | very hard |
| Portici | 40 | 400 | very hard |
| San Giorgio a Cremano | 40 | 400 | very hard |
| Gragnano | 39 | 390 | very hard |
| San Giuseppe Vesuviano | 38 | 380 | very hard |
| Ottaviano | 37 | 370 | very hard |
| Pagani | 37 | 370 | very hard |
| Sarno | 37 | 370 | very hard |
| Pomigliano d'Arco | 36 | 360 | very hard |
| Sant'Anastasia | 35 | 350 | very hard |
| Volla | 33 | 330 | very hard |
| Nocera Superiore | 30 | 300 | very hard |
| Telese Terme | 23.9 | 239 | very hard |
| Benevento | 23 | 230 | very hard |
| Sant'Agata de'Goti | 21.3 | 213 | very hard |
| Somma Vesuviana | 21 | 210 | very hard |
| Avellino | 18.3 | 183 | very hard |