Swannanoa, NC Radon Levels
Check local Swannanoa radon levels and find certified testing and mitigation professionals to keep your home safe
Swannanoa, NC Radon Facts
Set in Buncombe County within the Asheville Metro area, Swannanoa rests in the Blue Ridge Mountains atop metamorphic bedrock including gneiss and schist formations. The valley community features mountain homes and suburban developments, many with walkout basements taking advantage of sloped terrain. Testing shows an average radon level of 10.0 pCi/L in zip code 28778, significantly exceeding EPA guidelines and warranting immediate mitigation consideration.
Based on 1 user-submitted radon test for homes in Swannanoa, NC. The EPA recommends taking action at or above 4.0 pCi/L.
Swannanoa, NC Radon Mitigation
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Swannanoa, NC Radon Levels
User-submitted radon test readings from homes in the Swannanoa area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 10 pCi/L | Swannanoa, NC | 21-50 Years | Full Basement |
Have a radon test result for Swannanoa? Submit your reading to help other homeowners.
Radon Readings Near Swannanoa, NC
Compare radon levels in Swannanoa with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Fairview | 6.3 mi | 4.00 pCi/L | 1 |
| Black Mountain | 6.7 mi | 6.33 pCi/L | 3 |
| Old Fort | 13.4 mi | 4.00 pCi/L | 1 |
| Candler | 17.4 mi | 6.00 pCi/L | 1 |
| Lake Lure | 17.6 mi | 10.00 pCi/L | 1 |
| Hendersonville | 19.5 mi | 9.00 pCi/L | 2 |
| Burnsville | 20.9 mi | 20.00 pCi/L | 1 |
| Mill Spring | 24.2 mi | 4.00 pCi/L | 1 |
Buncombe County Radon Profile
The bedrock and soils beneath Buncombe County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 4 cities in Buncombe County average 6.50 pCi/L across 6 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Buncombe County.