Tap water hardness in Alberta
We have published hardness data for 14 cities in Alberta. The median is 197 mg/L; the hardest water is in Sylvan Lake (274 mg/L), the softest in Lethbridge (158 mg/L).
100 % of these cities have hard or very hard water (over 120 mg/L).
Health Canada: hardness above 200 mg/L is considered poor but tolerable; above 500 mg/L unacceptable.
Cities in Alberta, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Sylvan Lake | 274 | 274 | very hard |
| High River | 262 | 262 | very hard |
| Red Deer | 229 | 229 | very hard |
| Blackfalds | 215 | 215 | very hard |
| Lacombe | 215 | 215 | very hard |
| Ponoka | 215 | 215 | very hard |
| Calgary | 199 | 199 | very hard |
| Medicine Hat | 195 | 195 | very hard |
| Banff | 190 | 190 | very hard |
| Lloydminster | 175 | 175 | hard |
| Edmonton | 174 | 174 | hard |
| Sherwood Park | 174 | 174 | hard |
| Cochrane | 166 | 166 | hard |
| Lethbridge | 158 | 158 | hard |