Algonquin, IL Radon Levels
Check local Algonquin radon levels and find certified testing and mitigation professionals to keep your home safe
Algonquin, IL Radon Facts
Northwestern McHenry County's Algonquin shows an average radon level of 5.0 pCi/L, exceeding the EPA's 4.0 pCi/L action threshold based on recent testing data. The Chicago Metro area's glacial till deposits over limestone bedrock contribute to elevated radon potential, making professional mitigation important for affected homes in the 60102 area.
Based on 2 user-submitted radon tests for homes in Algonquin, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Algonquin, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Algonquin, IL Radon Levels
User-submitted radon test readings from homes in the Algonquin area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 6 pCi/L | Algonquin, IL | 51-99 Years | Full Basement |
| 4 pCi/L | Algonquin, IL | 51-99 Years | Full Basement |
Have a radon test result for Algonquin? Submit your reading to help other homeowners.
Radon Readings Near Algonquin, IL
Compare radon levels in Algonquin with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Lake In The Hills | 1.7 mi | 6.50 pCi/L | 4 |
| Dundee | 4.8 mi | 14.00 pCi/L | 1 |
| Fox River Grove | 4.8 mi | 10.00 pCi/L | 1 |
| Cary | 5.0 mi | 6.00 pCi/L | 3 |
| Crystal Lake | 5.9 mi | 7.25 pCi/L | 8 |
| Huntley | 6.2 mi | 5.75 pCi/L | 4 |
| Barrington | 8.6 mi | 6.00 pCi/L | 3 |
| Elgin | 8.9 mi | 11.50 pCi/L | 2 |
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.