Nitrate in Iowa Well Water

In Iowa, nitrate levels average 3.079 mg/L, with a maximum recorded level of 12.815 mg/L. The EPA limit is 10 mg/L. Currently 4.0% of tested wells exceed this limit, affecting approximately 11,600 wells.

Testing for nitrate in Iowa typically costs around $56. If treatment is needed, water treatment systems for nitrate cost approximately $1,171.

The risk level for nitrate in Iowa is rated as low. The state average of 3.079 mg/L is 28.9% below the national average of 4.332 mg/L.