Harvard, IL Radon Mitigation and Testing
Situated in McHenry County along the northwest suburban corridor of the Chicago metro, Harvard shows concerning radon readings with an average level of 8.0 pCi/L — well above the EPA action threshold. The area's glacial till deposits from Wisconsin glaciation, combined with predominantly full-basement homes built between the 1950s and 1990s, create conditions highly favorable for radon accumulation. Zip code 60033 residents should prioritize radon testing and mitigation given these elevated readings.
Based on 2 user-submitted radon tests for homes in Harvard, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Harvard, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Harvard, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Harvard, Illinois Radon Levels
User-submitted radon test readings from homes in the Harvard area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 9 pCi/L | Harvard, IL | 0-20 Years | Full Basement | Apr 2021 |
| 7 pCi/L | Harvard, IL | 51-99 Years | Partial Basement | May 2017 |
Have a radon test result for Harvard? Submit your reading to help other homeowners.
Harvard Radon Facts
Key details about the radon risk profile for Harvard and the 60033 zip code area.
Harvard and the 60033 zip code are located in McHenry 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 Harvard, 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 |