Nitrate in Missouri Well Water

In Missouri, nitrate levels average 4.885 mg/L, with a maximum recorded level of 13.418 mg/L. The EPA limit is 10 mg/L. Currently 9.1% of tested wells exceed this limit, affecting approximately 38,220 wells.

Testing for nitrate in Missouri typically costs around $32. If treatment is needed, water treatment systems for nitrate cost approximately $3,362.

The risk level for nitrate in Missouri is rated as moderate. The state average of 4.885 mg/L is 12.8% above the national average of 4.332 mg/L.