Water Quality in Minnesota
Water hardness and contaminant data for 7 cities across Minnesota. Find your city below to see a detailed water quality profile.
7
Cities
182
Avg Hardness (PPM)
271
Hardest City (PPM)
Minnesota Cities by Water Hardness
| City | Hardness (PPM) | Level | PFAS (ppt) | Source |
|---|---|---|---|---|
| Woodbury | 271 | Extremely Hard | 3 | Groundwater wells |
| Bloomington | 257 | Extremely Hard | 5 | Minneapolis Water (Mississippi River) |
| Plymouth | 254 | Extremely Hard | 6 | Groundwater wells |
| Minneapolis | 200 | Very Hard | 9 | Mississippi River |
| Rochester | 200 | Very Hard | 6 | Groundwater wells |
| St. Paul | 68 | Moderately Hard | 5 | Mississippi River |
| Duluth | 21 | Slightly Hard | 3 | Lake Superior |