Nitrate in Minnesota Well Water

In Minnesota, nitrate levels average 7.238 mg/L, with a maximum recorded level of 26.35 mg/L. The EPA limit is 10 mg/L. Currently 14.2% of tested wells exceed this limit, affecting approximately 73,840 wells.

Testing for nitrate in Minnesota typically costs around $101. If treatment is needed, water treatment systems for nitrate cost approximately $2,482.

The risk level for nitrate in Minnesota is rated as moderate. The state average of 7.238 mg/L is 67.1% above the national average of 4.332 mg/L.