Onalaska, WI Radon Levels
Check local Onalaska radon levels and find certified testing and mitigation professionals to keep your home safe
Onalaska, WI Radon Facts
This La Crosse County community in zip code 54650 recorded an average radon level of 3.0 pCi/L based on limited testing data, placing it within EPA recommended ranges but still warranting attention. Located along the Mississippi River valley where glacial deposits over sedimentary bedrock create the EPA Zone 2 classification, Onalaska reflects moderate radon potential typical of western Wisconsin. Additional testing by more homeowners would help establish clearer patterns for this area.
Based on 1 user-submitted radon test for homes in Onalaska, WI. The EPA recommends taking action at or above 4.0 pCi/L.
Onalaska, WI Radon Mitigation
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Onalaska, WI Radon Levels
User-submitted radon test readings from homes in the Onalaska area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 3 pCi/L | Onalaska, WI | 21-50 Years | Partial Basement |
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Radon Readings Near Onalaska, WI
Compare radon levels in Onalaska with the closest nearby cities that have user-submitted test data.
La Crosse County Radon Profile
The soils and bedrock of La Crosse County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 2 cities in La Crosse County average 2.50 pCi/L across 2 tests — below the EPA's 4 pCi/L action level, though radon varies sharply from home to home. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in La Crosse County to test, as levels can differ between neighboring homes.