Downers Grove, IL Radon Mitigation and Testing
Established in DuPage County within Chicago's western suburbs, Downers Grove sits on glacial till deposits from the Wisconsin glaciation that create ideal conditions for radon gas production and migration. Testing data reveals an average radon level of 14.0 pCi/L across zip codes 60515 and 60516, significantly exceeding the EPA action threshold. The community's predominantly single-family homes built between the 1950s and 1990s, most featuring full poured-concrete basements, require immediate radon testing and likely mitigation.
Based on 2 user-submitted radon tests for homes in Downers Grove, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Downers Grove, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Downers Grove, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Downers Grove, Illinois Radon Levels
User-submitted radon test readings from homes in the Downers Grove area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 11 pCi/L | Downers Grove, IL | 51-99 Years | Full Basement | Oct 2023 |
| 17 pCi/L | Downers Grove, IL | 0-20 Years | Full Basement | Oct 2020 |
Have a radon test result for Downers Grove? Submit your reading to help other homeowners.
Downers Grove Radon Facts
Key details about the radon risk profile for Downers Grove and the 60515 zip code area.
Downers Grove and the 60515 zip code are located in Dupage County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Downers Grove, IL
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Most Active Radon Markets in Illinois
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Buffalo Grove | 6.10 pCi/L | 10 |
| Crystal Lake | 7.25 pCi/L | 8 |
| Lake Zurich | 6.00 pCi/L | 7 |
| Grayslake | 5.00 pCi/L | 7 |
| New Lenox | 10.17 pCi/L | 6 |
| Park Ridge | 7.00 pCi/L | 6 |
| Arlington Heights | 6.17 pCi/L | 6 |
| Waterloo | 9.20 pCi/L | 5 |
| Palatine | 7.80 pCi/L | 5 |
| Round Lake | 7.80 pCi/L | 5 |
| Northbrook | 6.20 pCi/L | 5 |
| Mchenry | 11.00 pCi/L | 4 |
| Dekalb | 8.75 pCi/L | 4 |
| Columbia | 8.00 pCi/L | 4 |
| Lisle | 7.25 pCi/L | 4 |
| Normal | 7.25 pCi/L | 4 |
| Antioch | 7.00 pCi/L | 4 |
| Elk Grove Village | 7.00 pCi/L | 4 |
| Aurora | 6.75 pCi/L | 4 |
| Hoffman Estates | 6.75 pCi/L | 4 |