Radon in Sparta, Tennessee

Is radon a problem in Sparta, TN?

It can be. Sparta is in White County, which EPA places in Zone 2, where the predicted average indoor screening level is 2 to 4 pCi/L. Homes above EPA's 4 pCi/L action level are found in every zone, so a test is the only way to know your home's level.

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

Yes. Sparta's 2018 code adopts the radon appendix (Appendix F). 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 Sparta?

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 Sparta 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 White County?

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

Sources: White 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.