Tap water hardness in LU
We have published hardness data for 39 cities in LU. The median is 24.6 °fH; the hardest water is in Hohenrain (42.3 °fH), the softest in Horw (12.8 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Cities in LU, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Hohenrain | 42.3 | 423 | very hard |
| Römerswil | 40.1 | 402 | very hard |
| Wauwil | 39.1 | 392 | very hard |
| Hochdorf | 38.9 | 389 | very hard |
| Sursee | 37.2 | 372 | very hard |
| Büron | 37 | 370 | very hard |
| Mauensee | 36.6 | 367 | very hard |
| Triengen | 36.6 | 366 | very hard |
| Ballwil | 36.5 | 366 | very hard |
| Rickenbach | 35.9 | 359 | very hard |
| Egolzwil | 35.2 | 352 | very hard |
| Beromünster | 34.7 | 347 | very hard |
| Knutwil | 34.5 | 345 | very hard |
| Ruswil | 34.2 | 342 | very hard |
| Geuensee | 33.9 | 339 | very hard |
| Menznau | 33.3 | 333 | very hard |
| Schlierbach | 33.1 | 332 | very hard |
| Pfaffnau | 29.3 | 293 | very hard |
| Wolhusen | 28.2 | 282 | very hard |
| Hildisrieden | 24.6 | 246 | very hard |
| Weggis | 23.9 | 239 | very hard |
| Malters | 23.8 | 238 | very hard |
| Nottwil | 22.3 | 223 | very hard |
| Werthenstein | 22.1 | 221 | very hard |
| Udligenswil | 22 | 220 | very hard |
| Root | 21.9 | 219 | very hard |
| Oberkirch | 21 | 210 | very hard |
| Vitznau | 20.3 | 203 | very hard |
| Escholzmatt-Marbach | 20.1 | 201 | very hard |
| Neuenkirch | 18.1 | 181 | very hard |
| Rothenburg | 18 | 180 | very hard |
| Emmen | 16 | 160 | hard |
| Ebikon | 15.5 | 155 | hard |
| Lucerne | 14.7 | 147 | hard |
| Eich | 14.5 | 145 | hard |
| Meggen | 14.5 | 145 | hard |
| Sempach | 14 | 140 | hard |
| Adligenswil | 13.5 | 135 | hard |
| Horw | 12.8 | 128 | hard |