Brentwood, TN Radon Levels
Check local Brentwood radon levels and find certified testing and mitigation professionals to keep your home safe
Brentwood, TN Radon Facts
This affluent community in Williamson County within the Nashville metro area has recorded an average radon level of 8.5 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Built primarily on limestone bedrock typical of Middle Tennessee, Brentwood's upscale homes in zip code 37027 require radon mitigation attention. The area's EPA Zone 1 classification reflects the high radon potential from underlying geological formations.
Based on 2 user-submitted radon tests for homes in Brentwood, TN. The EPA recommends taking action at or above 4.0 pCi/L.
Brentwood, TN Radon Mitigation
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Brentwood, TN Radon Levels
User-submitted radon test readings from homes in the Brentwood area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 3 pCi/L | Brentwood, TN | 51-99 Years | No Basement/All Crawl Space |
| 14 pCi/L | Brentwood, TN | 21-50 Years | No Basement/All Crawl Space |
Have a radon test result for Brentwood? Submit your reading to help other homeowners.
Radon Readings Near Brentwood, TN
Compare radon levels in Brentwood with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Franklin | 5.6 mi | 5.00 pCi/L | 1 |
| Nashville | 9.7 mi | 7.00 pCi/L | 1 |
| Pegram | 15.3 mi | 2.00 pCi/L | 1 |
| College Grove | 15.6 mi | 3.00 pCi/L | 1 |
| Smyrna | 16.2 mi | 7.00 pCi/L | 1 |
| Hermitage | 16.3 mi | 4.00 pCi/L | 1 |
| Madison | 18.2 mi | 5.00 pCi/L | 1 |
| Old Hickory | 19.1 mi | 12.00 pCi/L | 1 |
Williamson County Radon Profile
Because of its underlying geology, Williamson County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Williamson County average 6.25 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Williamson County home regardless of zone or a neighbor's results.