Radon in South Dakota Well Water

In South Dakota, radon levels average 129.605 pCi/L, with a maximum recorded level of 596.991 pCi/L. The EPA limit is 300 pCi/L. Currently 14.4% of tested wells exceed this limit, affecting approximately 10,800 wells.

Testing for radon in South Dakota typically costs around $37. If treatment is needed, water treatment systems for radon cost approximately $680.

The risk level for radon in South Dakota is rated as moderate. The state average of 129.605 pCi/L is 6.1% below the national average of 138.042 pCi/L.