Radon in Morristown, Tennessee

Is radon a problem in Morristown, TN?

Yes, it can be. Morristown is in Hamblen 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 Morristown have to be built radon-resistant?

Only if the building official requires it. Morristown's code makes the radon appendix "optional or required by the Building Official." 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 Morristown?

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 Morristown 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 Hamblen County?

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

Sources: Hamblen 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.