Spring Grove, IL Radon Levels
Check local Spring Grove radon levels and find certified testing and mitigation professionals to keep your home safe
Spring Grove, IL Radon Facts
Situated in McHenry County within the Chicago Metro area, Spring Grove shows an average radon level of 14.0 pCi/L from testing data. This reading significantly exceeds the EPA's 4.0 pCi/L action level, reflecting northern Illinois's glacial till deposits and the area's predominantly basement-equipped housing stock. Homeowners in zip code 60081 should prioritize radon mitigation given these substantially elevated levels typical of the region.
Based on 1 user-submitted radon test for homes in Spring Grove, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Spring Grove, IL Radon Mitigation
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Spring Grove, IL Radon Levels
User-submitted radon test readings from homes in the Spring Grove area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 14 pCi/L | Spring Grove, IL | 0-20 Years | Full Basement |
Have a radon test result for Spring Grove? Submit your reading to help other homeowners.
Radon Readings Near Spring Grove, IL
Compare radon levels in Spring Grove with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Fox Lake | 4.5 mi | 5.00 pCi/L | 1 |
| Antioch | 5.6 mi | 7.00 pCi/L | 4 |
| Mchenry | 7.1 mi | 11.00 pCi/L | 4 |
| Round Lake | 8.6 mi | 7.80 pCi/L | 5 |
| Grayslake | 10.6 mi | 5.00 pCi/L | 7 |
| Wauconda | 13.1 mi | 6.67 pCi/L | 3 |
| Woodstock | 14.2 mi | 12.50 pCi/L | 2 |
| Crystal Lake | 14.3 mi | 7.25 pCi/L | 8 |
McHenry County Radon Profile
EPA mapping assigns McHenry 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 11 cities in McHenry County average 7.73 pCi/L across 33 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 McHenry County home regardless of zone or a neighbor's results.