Nitrate in South Dakota Well Water

In South Dakota, nitrate levels average 6.885 mg/L, with a maximum recorded level of 32.944 mg/L. The EPA limit is 10 mg/L. Currently 12.6% of tested wells exceed this limit, affecting approximately 9,450 wells.

Testing for nitrate in South Dakota typically costs around $111. If treatment is needed, water treatment systems for nitrate cost approximately $2,761.

The risk level for nitrate in South Dakota is rated as moderate. The state average of 6.885 mg/L is 58.9% above the national average of 4.332 mg/L.