Tap water hardness in Horsham
We have published hardness data for 13 cities in Horsham. The median is 169 mg/L; the hardest water is in Cowfold (185 mg/L), the softest in Storrington (163 mg/L).
100 % of these cities have hard or very hard water (over 120 mg/L).
UK suppliers report mg/L CaCO₃ and often Clark degrees (1 °Clark = 14.25 mg/L).
Cities in Horsham, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Cowfold | 185 | 185 | very hard |
| Partridge Green | 182 | 182 | very hard |
| Slinfold | 180 | 180 | hard |
| Pulborough | 174 | 174 | hard |
| Warnham | 172 | 172 | hard |
| Horsham | 169 | 169 | hard |
| Billingshurst | 169 | 169 | hard |
| Ashington | 168 | 168 | hard |
| Southwater | 167 | 167 | hard |
| Rudgwick | 165 | 165 | hard |
| Henfield | 163 | 163 | hard |
| Steyning | 163 | 163 | hard |
| Storrington | 163 | 163 | hard |