Water Hardness in Minnesota Well Water

In Minnesota, water hardness levels average 151.69 mg/L CaCO3, with a maximum recorded level of 429.38 mg/L CaCO3. The EPA limit is 180 mg/L CaCO3. Currently 11.5% of tested wells exceed this limit, affecting approximately 59,800 wells.

Testing for water hardness in Minnesota typically costs around $99. If treatment is needed, water treatment systems for water hardness cost approximately $3,583.

The risk level for water hardness in Minnesota is rated as moderate. The state average of 151.69 mg/L CaCO3 is 9.7% above the national average of 138.229 mg/L CaCO3.