Arsenic in South Dakota Well Water

In South Dakota, arsenic levels average 3.703 ppb, with a maximum recorded level of 17.737 ppb. The EPA limit is 10 ppb. Currently 9.7% of tested wells exceed this limit, affecting approximately 7,275 wells.

Testing for arsenic in South Dakota typically costs around $79. If treatment is needed, water treatment systems for arsenic cost approximately $2,785.

The risk level for arsenic in South Dakota is rated as moderate. The state average of 3.703 ppb is 12.7% below the national average of 4.243 ppb.