Sulfate in Arizona Well Water

In Arizona, sulfate levels average 93.07 mg/L, with a maximum recorded level of 416.024 mg/L. The EPA limit is 250 mg/L. Currently 9.5% of tested wells exceed this limit, affecting approximately 26,600 wells.

Testing for sulfate in Arizona typically costs around $110. If treatment is needed, water treatment systems for sulfate cost approximately $2,573.

The risk level for sulfate in Arizona is rated as moderate. The state average of 93.07 mg/L is 16.5% below the national average of 111.500 mg/L.