Grayslake, IL Radon Mitigation and Testing
Suburban Lake County's Grayslake, located along the northern Chicago metro corridor, shows an average radon level of 5.0 pCi/L from seven property tests. This reading exceeds the EPA action level, reflecting the area's glacial till deposits over limestone bedrock that characterize much of northern Illinois. Residents of zip code 60030 should test their properties, as the community's predominantly single-family homes with full basements provide ideal conditions for radon accumulation.
Based on 7 user-submitted radon tests for homes in Grayslake, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Grayslake, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Grayslake, IL Radon Testing
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Grayslake, Illinois Radon Levels
User-submitted radon test readings from homes in the Grayslake area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 4 pCi/L | Grayslake, IL | 21-50 Years | Full Basement | Aug 2024 |
| 6 pCi/L | Grayslake, IL | 21-50 Years | Partial Basement | Oct 2023 |
| 10 pCi/L | Grayslake, IL | 21-50 Years | No Basement/All Crawl Space | Sep 2023 |
| 3 pCi/L | Grayslake, IL | 21-50 Years | Full Basement | Nov 2017 |
Have a radon test result for Grayslake? Submit your reading to help other homeowners.
Grayslake Radon Facts
Key details about the radon risk profile for Grayslake and the 60030 zip code area.
Grayslake and the 60030 zip code are located in Lake 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 Grayslake, 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 |