Radon in Oak Ridge, Tennessee

Is radon a problem in Oak Ridge, TN?

Yes, it can be. Oak Ridge is in Anderson County and Roane County, which EPA places in Zone 1, the highest radon-potential category: the predicted average indoor screening level is above 4 pCi/L. Levels vary from house to house, so a test is the only way to know your home's level.

Do new homes in Oak Ridge have to be built radon-resistant?

No. Oak Ridge's 2024 code doesn't adopt the radon appendix and excludes optional provisions. The city spans Anderson and Roane counties. Either way, ask your builder which radon features were installed and test after you move in: radon-resistant construction lowers the chance of high radon but doesn't replace a test. What your result means · Choosing a radon professional

How do I get a free radon test kit in Oak Ridge?

Order a free short-term kit from the Tennessee Radon Program online or by calling 1-800-232-1139. Place it on the lowest lived-in floor, about 3 feet off the floor, for 3 to 5 days, then mail it back right away; return postage is prepaid. How to test your home

What if my Oak Ridge home tests high for radon?

EPA recommends fixing your home at 4 pCi/L or higher and considering a fix between 2 and 4 pCi/L. Confirm a high short-term result with a second test, then hire an NRPP- or NRSB-certified mitigation professional; Tennessee doesn't license radon contractors. What your result means · Choosing a radon professional

Where can I learn more about radon in Anderson County?

The Anderson County, TN radon guide covers every permitting jurisdiction in the county, state test data and sources.

Sources: Anderson County radon guide and its sources · EPA Map of Radon Zones: Tennessee · Tennessee Radon Program · EPA, Health Risk of Radon

Last reviewed October 17, 2026 by the Tennessee Radon Authority editorial team. How we research.