Westchester, IL Radon Levels
Check local Westchester radon levels and find certified testing and mitigation professionals to keep your home safe
Westchester, IL Radon Facts
This Cook County community in the Chicago Metro sits on glacial till deposits from the Wisconsin glaciation, creating conditions highly favorable for radon production. Testing data shows an average radon level of 4.0 pCi/L, right at the EPA action threshold, making regular testing essential for homeowners in the 60154 zip code area.
Based on 1 user-submitted radon test for homes in Westchester, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Westchester, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Westchester, IL Radon Levels
User-submitted radon test readings from homes in the Westchester area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | Westchester, IL | 51-99 Years | Full Basement |
Have a radon test result for Westchester? Submit your reading to help other homeowners.
Radon Readings Near Westchester, IL
Compare radon levels in Westchester with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Western Springs | 3.4 mi | 7.00 pCi/L | 1 |
| Riverside | 3.4 mi | 8.00 pCi/L | 1 |
| Elmhurst | 4.0 mi | 4.00 pCi/L | 1 |
| Forest Park | 4.1 mi | 7.00 pCi/L | 2 |
| Oak Brook | 4.2 mi | 10.00 pCi/L | 1 |
| River Forest | 4.6 mi | 4.00 pCi/L | 1 |
| Berwyn | 4.9 mi | 5.00 pCi/L | 1 |
| Villa Park | 5.2 mi | 12.50 pCi/L | 2 |
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.