Annawan, IL Radon Levels
Check local Annawan radon levels and find certified testing and mitigation professionals to keep your home safe
Annawan, IL Radon Facts
Situated in Henry County along the Illinois River valley, Annawan features alluvial soils over underlying limestone that contribute to elevated radon potential. The community's single test recorded 10.0 pCi/L, significantly exceeding the EPA action level of 4.0 pCi/L. Given this elevated reading and the area's geological composition of river valley deposits over dolomite bedrock, all homeowners in zip code 61234 should prioritize radon testing.
Based on 1 user-submitted radon test for homes in Annawan, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Annawan, IL Radon Mitigation
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Annawan, IL Radon Levels
User-submitted radon test readings from homes in the Annawan area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 10 pCi/L | Annawan, IL | 21-50 Years | Full Basement |
Have a radon test result for Annawan? Submit your reading to help other homeowners.
Radon Readings Near Annawan, IL
Compare radon levels in Annawan with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Kewanee | 10.9 mi | 8.00 pCi/L | 1 |
| Geneseo | 14.2 mi | 6.00 pCi/L | 1 |
| Walnut | 18.5 mi | 5.00 pCi/L | 1 |
| Orion | 24.6 mi | 4.00 pCi/L | 1 |
| Princeton | 25.3 mi | 11.50 pCi/L | 2 |
| Rock Falls | 27.9 mi | 6.00 pCi/L | 2 |
| Coal Valley | 28.7 mi | 12.00 pCi/L | 1 |
| Moline | 31.0 mi | 5.00 pCi/L | 1 |
Henry County Radon Profile
Henry County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 4 cities in Henry County average 7.00 pCi/L across 4 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 Henry County to test, as levels can differ between neighboring homes.