Tap water hardness in Oost-Vlaanderen
We have published hardness data for 54 cities in Oost-Vlaanderen. The median is 19.7 °fH; the hardest water is in Ronse (45.5 °fH), the softest in Zele (16.4 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Belgian suppliers report hardness in °f (French degrees); 1 °f = 10 mg/L CaCO₃.
Cities in Oost-Vlaanderen, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Ronse | 45.5 | 455 | very hard |
| Oudenaarde | 42.1 | 421 | very hard |
| Geraardsbergen | 41.6 | 416 | very hard |
| Brakel | 39.9 | 399 | very hard |
| De Pinte | 39.9 | 399 | very hard |
| Gavere | 39.9 | 399 | very hard |
| Kruisem | 39.9 | 399 | very hard |
| Merelbeke | 39.9 | 399 | very hard |
| Nazareth | 39.9 | 399 | very hard |
| Sint-Martens-Latem | 39.9 | 399 | very hard |
| Zottegem | 39.9 | 399 | very hard |
| Zulte | 39.9 | 399 | very hard |
| Herzele | 34.6 | 346 | very hard |
| Ninove | 34.6 | 346 | very hard |
| Nieuwerkerken | 32 | 320 | very hard |
| Aalter | 30.3 | 303 | very hard |
| Deinze | 30.3 | 303 | very hard |
| Gent | 30.3 | 303 | very hard |
| Oosterzele | 28.4 | 284 | very hard |
| Stekene | 25.4 | 254 | very hard |
| Lokeren | 25.4 | 254 | very hard |
| Moerbeke | 25.4 | 254 | very hard |
| Sint-Gillis-Waas | 24.5 | 245 | very hard |
| Wachtebeke | 23.1 | 231 | very hard |
| Lochristi | 21.1 | 211 | very hard |
| Evergem | 21 | 210 | very hard |
| Zelzate | 20.7 | 207 | very hard |
| Assenede | 18.7 | 187 | very hard |
| Maldegem | 18.6 | 186 | very hard |
| Sint-Niklaas | 18.4 | 184 | very hard |
| Waasmunster | 18.4 | 184 | very hard |
| Haaltert | 18.2 | 182 | very hard |
| Temse | 18.2 | 182 | very hard |
| Beveren | 17.6 | 176 | hard |
| Kruibeke | 17.6 | 176 | hard |
| Denderleeuw | 17.5 | 175 | hard |
| Zwijndrecht | 17.1 | 171 | hard |
| Aalst | 16.8 | 168 | hard |
| Buggenhout | 16.8 | 168 | hard |
| Dendermonde | 16.8 | 168 | hard |
| Destelbergen | 16.8 | 168 | hard |
| Hamme | 16.8 | 168 | hard |
| Lebbeke | 16.8 | 168 | hard |
| Lede | 16.8 | 168 | hard |
| Melle | 16.8 | 168 | hard |
| Sint-Lievens-Houtem | 16.8 | 168 | hard |
| Wetteren | 16.8 | 168 | hard |
| Wichelen | 16.8 | 168 | hard |
| Eeklo | 16.5 | 165 | hard |
| Kaprijke | 16.5 | 165 | hard |
| Sint-Laureins | 16.5 | 165 | hard |
| Laarne | 16.4 | 164 | hard |
| Berlare | 16.4 | 164 | hard |
| Zele | 16.4 | 164 | hard |