Nitrate in Montana Well Water

In Montana, nitrate levels average 4.595 mg/L, with a maximum recorded level of 11.846 mg/L. The EPA limit is 10 mg/L. Currently 7.9% of tested wells exceed this limit, affecting approximately 14,220 wells.

Testing for nitrate in Montana typically costs around $76. If treatment is needed, water treatment systems for nitrate cost approximately $3,680.

The risk level for nitrate in Montana is rated as low. The state average of 4.595 mg/L is 6.1% above the national average of 4.332 mg/L.