Tap water hardness in Brabant wallon
We have published hardness data for 82 cities in Brabant wallon. The median is 36.6 °fH; the hardest water is in Virginal-Samme (50.2 °fH), the softest in Ophain-Bois-Seigneur-Isaac (22.6 °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 Brabant wallon, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Virginal-Samme | 50.2 | 502 | very hard |
| Quenast | 49.8 | 498 | very hard |
| Rebecq-Rognon | 49.8 | 498 | very hard |
| Saintes | 49.3 | 493 | very hard |
| Oisquercq | 48.9 | 489 | very hard |
| Tubize | 48.9 | 489 | very hard |
| Bierghes | 47.5 | 475 | very hard |
| Noduwez | 45.6 | 457 | very hard |
| Zétrud-Lumay | 44.9 | 449 | very hard |
| Ittre | 44.7 | 447 | very hard |
| Jandrain-Jandrenouille | 44.5 | 446 | very hard |
| Clabecq | 44.4 | 444 | very hard |
| Orp-le-Grand | 43.5 | 435 | very hard |
| Ramillies | 42.8 | 428 | very hard |
| Jodoigne | 42.3 | 423 | very hard |
| Autre-Église | 42.2 | 422 | very hard |
| Huppaye | 42.2 | 422 | very hard |
| Archennes | 41.7 | 417 | very hard |
| Hamme-Mille | 41.7 | 417 | very hard |
| Tourinnes-la-Grosse | 41.7 | 417 | very hard |
| Piétrain | 40.5 | 405 | very hard |
| Braine-l'Alleud | 40 | 400 | very hard |
| Wauthier-Braine | 40 | 400 | very hard |
| Braine-le-Château | 39.8 | 398 | very hard |
| Bossut-Gottechain | 39.4 | 394 | very hard |
| Grez-Doiceau | 39.4 | 394 | very hard |
| Incourt | 39.2 | 392 | very hard |
| Opprebais | 39.2 | 392 | very hard |
| Orbais | 39.2 | 392 | very hard |
| Tourinnes-Saint-Lambert | 39.2 | 392 | very hard |
| Bierges | 39.1 | 391 | very hard |
| Neerheylissem | 38.9 | 389 | very hard |
| Limal | 38.9 | 389 | very hard |
| Nivelles | 38.8 | 388 | very hard |
| Nethen | 38.4 | 384 | very hard |
| Geest-Gérompont-Petit-Rosière | 38.2 | 382 | very hard |
| Wavre | 37.8 | 378 | very hard |
| Bonlez | 37 | 370 | very hard |
| Corroy-le-Grand | 37 | 370 | very hard |
| Nil-Saint-Vincent-Saint-Martin | 37 | 370 | very hard |
| Biez | 36.6 | 366 | very hard |
| Chaumont-Gistoux | 36.6 | 366 | very hard |
| Corbais | 36.6 | 366 | very hard |
| Dion-le-Mont | 36.6 | 366 | very hard |
| Beauvechain | 36.3 | 363 | very hard |
| Cortil-Noirmont | 36.1 | 362 | very hard |
| Louvain-la-Neuve | 36.1 | 362 | very hard |
| Mélin | 36.1 | 362 | very hard |
| Piétrebais | 36.1 | 362 | very hard |
| Thorembais-Saint-Trond | 36.1 | 362 | very hard |
| Walhain-Saint-Paul | 36.1 | 362 | very hard |
| Rosières | 35.6 | 356 | very hard |
| Genval | 35.5 | 355 | very hard |
| Rixensart | 35.5 | 355 | very hard |
| Basse Lasne | 35.5 | 355 | very hard |
| La Hulpe | 35.5 | 355 | very hard |
| Lasne-Chapelle-Saint-Lambert | 35.5 | 355 | very hard |
| Ohain | 35.5 | 355 | very hard |
| Perwez | 34.2 | 342 | very hard |
| Couture-Saint-Germain | 33.9 | 339 | very hard |
| Marbais | 33.2 | 332 | very hard |
| Sart-Dames-Avelines | 33.2 | 332 | very hard |
| Tilly | 33.2 | 332 | very hard |
| Jauche | 32.9 | 329 | very hard |
| Baisy-Thy | 32.7 | 327 | very hard |
| Genappe | 32.7 | 327 | very hard |
| Loupoigne | 32.7 | 327 | very hard |
| Ways | 32.7 | 327 | very hard |
| Bousval | 32.3 | 323 | very hard |
| Céroux-Mousty | 32.3 | 323 | very hard |
| Limelette | 32.3 | 323 | very hard |
| Ottignies | 32.3 | 323 | very hard |
| Plancenoit | 32.3 | 323 | very hard |
| Vieux-Genappe | 32.3 | 323 | very hard |
| Chastre-Villeroux-Blanmont | 31.9 | 319 | very hard |
| Hévillers | 31.9 | 319 | very hard |
| Court-Saint-Étienne | 31.3 | 313 | very hard |
| Mont-Saint-Guibert | 31.3 | 313 | very hard |
| Villers-la-Ville | 30.4 | 304 | very hard |
| Waterloo | 25.6 | 256 | very hard |
| Lillois-Witterzée | 22.6 | 226 | very hard |
| Ophain-Bois-Seigneur-Isaac | 22.6 | 226 | very hard |