Radon zones in West Virginia
Last updated
EPA’s Map of Radon Zones places 55 West Virginia counties in its three radon potential zones: 20 in Zone 1 (highest), 29 in Zone 2 (moderate), and 6 in Zone 3 (low).
What this means for West Virginia homes
Most West Virginia counties fall in Zone 2. EPA predicts moderate average indoor levels (2 to 4 pCi/L) across much of West Virginia. Many homes will be below the action level, but many will not, and only a test can tell which.
EPA’s guidance is the same everywhere: test your home, fix it if the level is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L. The zone map is from 1993 and should not be used to decide whether a single home needs testing.
West Virginia radon program
EPA lists the following state contact for West Virginia: WV Radiation, Toxics & Indoor Air Division, phone 304-352-5039. Website: www.wvdhhr.org/rtia/radon.asp. State programs can tell you about local testing data, free or discounted test kits, disclosure rules for home sales, and credentialed radon professionals.
West Virginia counties and their EPA radon zones
County names follow the 2020 Census. Zones from the EPA Map of Radon Zones (text version). Rows marked “zone of” use the zone EPA gave the predecessor or surrounding county.
Next steps: read how to test your home, check a result with the level calculator, or look up a single address by ZIP code.