Tap water hardness in Rioja (La)
We have published hardness data for 43 cities in Rioja (La). The median is 12.1 °fH; the hardest water is in Grávalos (69.8 °fH), the softest in Viniegra de Abajo (0.6 °fH).
53 % of these cities have hard or very hard water (over 120 mg/L).
Cities in Rioja (La), hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Grávalos | 69.8 | 698 | very hard |
| Pradejón | 52.1 | 521 | very hard |
| Cervera del Río Alhama | 47 | 470 | very hard |
| Huércanos | 38.6 | 386 | very hard |
| Munilla | 38 | 380 | very hard |
| Alfaro | 36.3 | 363 | very hard |
| Autol | 35.7 | 357 | very hard |
| Aguilar del Río Alhama | 35.2 | 352 | very hard |
| Ausejo | 32.6 | 326 | very hard |
| Alcanadre | 30 | 300 | very hard |
| Quel | 25.9 | 259 | very hard |
| Tudelilla | 23.4 | 234 | very hard |
| Nájera | 23 | 230 | very hard |
| Arnedo | 20.9 | 209 | very hard |
| Calahorra | 20.1 | 201 | very hard |
| Torrecilla en Cameros | 19.4 | 194 | very hard |
| Fuenmayor | 19.2 | 192 | very hard |
| Igea | 18.7 | 187 | very hard |
| Préjano | 18.4 | 184 | very hard |
| Haro | 14.8 | 148 | hard |
| Santo Domingo de la Calzada | 13.7 | 137 | hard |
| Logroño | 12.1 | 121 | hard |
| Navarrete | 12 | 120 | hard |
| Agoncillo | 11 | 110 | moderately hard |
| Cornago | 10.5 | 105 | moderately hard |
| Villar de Arnedo, El | 5.8 | 58 | soft |
| Uruñuela | 5.3 | 53 | soft |
| Badarán | 3.8 | 38 | soft |
| Camprovín | 2.6 | 26 | soft |
| Bobadilla | 2.4 | 24 | soft |
| Cuzcurrita de Río Tirón | 2.3 | 23 | soft |
| Foncea | 2.3 | 23 | soft |
| Manzanares de Rioja | 2.3 | 23 | soft |
| Tirgo | 2.3 | 23 | soft |
| Baños de Río Tobía | 1.9 | 19 | soft |
| Tormantos | 1.9 | 19 | soft |
| Valgañón | 1.7 | 17 | soft |
| Albelda de Iregua | 1.3 | 13 | soft |
| Sorzano | 1.2 | 12 | soft |
| Hornos de Moncalvillo | 0.8 | 8 | soft |
| Baños de Rioja | 0.7 | 7 | soft |
| Canales de la Sierra | 0.7 | 7 | soft |
| Viniegra de Abajo | 0.6 | 6 | soft |