River Forest, IL Radon Levels
Check local River Forest radon levels and find certified testing and mitigation professionals to keep your home safe
River Forest, IL Radon Facts
This historic suburb in Cook County shows an average radon level of 4.0 pCi/L from recent testing, right at the EPA action threshold. River Forest's stately homes, many dating to the early 1900s, typically feature full basements built on glacial till deposits that characterize the Chicago Metro area's geology. Homeowners in zip code 60305 should continue regular radon testing, as individual readings can vary significantly even within this well-established community.
Based on 1 user-submitted radon test for homes in River Forest, IL. The EPA recommends taking action at or above 4.0 pCi/L.
River Forest, IL Radon Mitigation
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River Forest, IL Radon Levels
User-submitted radon test readings from homes in the River Forest area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | River Forest, IL | 100+ Years | Full Basement |
Have a radon test result for River Forest? Submit your reading to help other homeowners.
Radon Readings Near River Forest, IL
Compare radon levels in River Forest with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Oak Park | 1.4 mi | 5.33 pCi/L | 3 |
| Forest Park | 1.5 mi | 7.00 pCi/L | 2 |
| Riverside | 4.0 mi | 8.00 pCi/L | 1 |
| Berwyn | 4.4 mi | 5.00 pCi/L | 1 |
| Westchester | 4.6 mi | 4.00 pCi/L | 1 |
| Elmhurst | 6.4 mi | 4.00 pCi/L | 1 |
| Chicago | 7.5 mi | 11.00 pCi/L | 3 |
| Western Springs | 7.6 mi | 7.00 pCi/L | 1 |
Cook County Radon Profile
Cook County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 40 cities in Cook County average 6.44 pCi/L across 82 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Cook County.