Nitrate in Arizona Well Water

In Arizona, nitrate levels average 7.919 mg/L, with a maximum recorded level of 26.975 mg/L. The EPA limit is 10 mg/L. Currently 2.0% of tested wells exceed this limit, affecting approximately 5,600 wells.

Testing for nitrate in Arizona typically costs around $120. If treatment is needed, water treatment systems for nitrate cost approximately $620.

The risk level for nitrate in Arizona is rated as minimal. The state average of 7.919 mg/L is 82.8% above the national average of 4.332 mg/L.