Willmar, MN Radon Levels
Check local Willmar radon levels and find certified testing and mitigation professionals to keep your home safe
Willmar, MN Radon Facts
Positioned in Kandiyohi County within Minnesota's glacial prairie region, Willmar shows elevated radon potential due to uranium-bearing glacial deposits and underlying bedrock formations. Local testing has documented an average level of 14.0 pCi/L, well above the EPA action threshold. With the area's predominantly full-basement construction and glacial till soils, residents should implement radon mitigation systems and conduct regular testing.
Based on 1 user-submitted radon test for homes in Willmar, MN. The EPA recommends taking action at or above 4.0 pCi/L.
Willmar, MN Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Willmar, MN Radon Levels
User-submitted radon test readings from homes in the Willmar area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 14 pCi/L | Willmar, MN | 0-20 Years | Full Basement |
Have a radon test result for Willmar? Submit your reading to help other homeowners.
Radon Readings Near Willmar, MN
Compare radon levels in Willmar with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Watkins | 32.5 mi | 5.00 pCi/L | 1 |
| Hutchinson | 36.7 mi | 7.50 pCi/L | 2 |
| Cold Spring | 36.8 mi | 4.00 pCi/L | 1 |
| Stewart | 41.0 mi | 4.00 pCi/L | 1 |
| Holdingford | 49.7 mi | 5.00 pCi/L | 1 |
Kandiyohi County Radon Profile
The bedrock and soils beneath Kandiyohi 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 1 city in Kandiyohi County average 14.00 pCi/L across 1 test — 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 Kandiyohi County.