Allendale, MI Radon Levels
Check local Allendale radon levels and find certified testing and mitigation professionals to keep your home safe
Allendale, MI Radon Facts
Positioned in Ottawa County within the Grand Rapids metropolitan area, Allendale sits over glacial till deposits that contribute to Michigan's elevated radon potential. Testing data from zip code 49401 shows an average radon level of 5.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. The community's mix of college housing and suburban development, much of it featuring full basements typical of western Michigan construction, creates conditions conducive to radon accumulation, making ongoing testing and potential mitigation important for residents.
Based on 1 user-submitted radon test for homes in Allendale, MI. The EPA recommends taking action at or above 4.0 pCi/L.
Allendale, MI Radon Mitigation
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Allendale, MI Radon Levels
User-submitted radon test readings from homes in the Allendale area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | Allendale, MI | 0-20 Years | Full Basement |
Have a radon test result for Allendale? Submit your reading to help other homeowners.
Radon Readings Near Allendale, MI
Compare radon levels in Allendale with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Jenison | 6.5 mi | 4.00 pCi/L | 2 |
| Hudsonville | 7.1 mi | 12.00 pCi/L | 1 |
| Wyoming | 11.7 mi | 4.00 pCi/L | 1 |
| Grand Haven | 14.2 mi | 4.00 pCi/L | 1 |
| Grand Rapids | 14.2 mi | 3.00 pCi/L | 1 |
| Byron Center | 15.9 mi | 4.00 pCi/L | 1 |
| Holland | 16.2 mi | 5.00 pCi/L | 1 |
| Rockford | 23.0 mi | 5.00 pCi/L | 1 |
Ottawa County Radon Profile
Local geology places Ottawa County in EPA Radon Zone 3, where predicted indoor radon averages fall below 2 pCi/L — though no county is risk-free. Homeowner-submitted tests from 4 cities in Ottawa County average 5.80 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Ottawa County to test, as levels can differ between neighboring homes.