Tap water hardness in British Columbia
We have published hardness data for 35 cities in British Columbia. The median is 22 mg/L; the hardest water is in Vernon (173 mg/L), the softest in Nanaimo (12 mg/L).
9 % 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 British Columbia, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Vernon | 173 | 173 | hard |
| Fort St. John | 155 | 155 | hard |
| Lake Country | 129 | 129 | hard |
| Penticton | 110 | 110 | moderately hard |
| Nanoose Bay | 93 | 93 | moderately hard |
| Revelstoke | 71 | 71 | moderately hard |
| West Kelowna | 67 | 67 | moderately hard |
| Castlegar | 65 | 65 | moderately hard |
| Summerland | 55 | 55 | soft |
| Hope | 54 | 54 | soft |
| Chilliwack | 54 | 54 | soft |
| Whistler | 49 | 49 | soft |
| Port Alberni | 46 | 46 | soft |
| Gibsons | 46 | 46 | soft |
| Kamloops | 40 | 40 | soft |
| Campbell River | 24 | 24 | soft |
| Delta | 22 | 22 | soft |
| Squamish | 22 | 22 | soft |
| Vancouver | 22 | 22 | soft |
| Surrey | 22 | 22 | soft |
| North Vancouver | 21 | 21 | soft |
| Port Coquitlam | 20 | 20 | soft |
| Port Moody | 20 | 20 | soft |
| Victoria-Fraserview | 20 | 20 | soft |
| View Royal | 19 | 19 | soft |
| Comox | 18 | 18 | soft |
| Courtenay | 18 | 18 | soft |
| Sooke | 18 | 18 | soft |
| Central Saanich | 17 | 17 | soft |
| Colwood | 17 | 17 | soft |
| Esquimalt | 17 | 17 | soft |
| Langford | 17 | 17 | soft |
| Oak Bay | 17 | 17 | soft |
| Victoria | 17 | 17 | soft |
| Nanaimo | 12 | 12 | soft |