Motley, MN Radon Levels
Check local Motley radon levels and find certified testing and mitigation professionals to keep your home safe
Motley, MN Radon Facts
Northern Minnesota's Cass County community of Motley shows an average radon level of 7.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. The area's glacial deposits over Precambrian bedrock contribute to elevated radon potential across the region. Residents in zip code 56466 should consider mitigation, as Minnesota's granite-rich geology consistently produces above-average indoor radon concentrations.
Based on 1 user-submitted radon test for homes in Motley, MN. The EPA recommends taking action at or above 4.0 pCi/L.
Motley, MN Radon Mitigation
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Motley, MN Radon Levels
User-submitted radon test readings from homes in the Motley area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 7 pCi/L | Motley, MN | 0-20 Years | No Basement/All Crawl Space |
Have a radon test result for Motley? Submit your reading to help other homeowners.
Radon Readings Near Motley, MN
Compare radon levels in Motley with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Nisswa | 19.0 mi | 4.00 pCi/L | 1 |
| Pequot Lakes | 27.2 mi | 8.00 pCi/L | 1 |
| Deerwood | 34.1 mi | 16.00 pCi/L | 1 |
| Crosslake | 34.4 mi | 9.00 pCi/L | 1 |
| Holdingford | 39.2 mi | 5.00 pCi/L | 1 |
| Aitkin | 45.7 mi | 8.00 pCi/L | 1 |
| Nevis | 46.5 mi | 4.00 pCi/L | 1 |
| Hackensack | 48.5 mi | 4.00 pCi/L | 2 |
Cass County Radon Profile
EPA mapping assigns Cass County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 4 cities in Cass County average 5.67 pCi/L across 6 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 Cass County home regardless of zone or a neighbor's results.