West Chester, PA Radon Levels
Check local West Chester radon levels and find certified testing and mitigation professionals to keep your home safe
West Chester, PA Radon Facts
Located in Chester County within the Philadelphia Metro area (19380), West Chester sits on complex metamorphic bedrock that contributes to elevated radon levels across southeastern Pennsylvania. Testing data reveals an average of 6.67 pCi/L, well above EPA recommended thresholds. The borough's historic architecture and newer suburban developments both present radon concerns, making testing essential for all foundation types.
Based on 3 user-submitted radon tests for homes in West Chester, PA. The EPA recommends taking action at or above 4.0 pCi/L.
West Chester, PA Radon Mitigation
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West Chester, PA Radon Levels
User-submitted radon test readings from homes in the West Chester area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | West Chester, PA | 0-20 Years | Full Basement |
| 10 pCi/L | West Chester, PA | 100+ Years | Full Basement |
Have a radon test result for West Chester? Submit your reading to help other homeowners.
Radon Readings Near West Chester, PA
Compare radon levels in West Chester with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Glen Mills | 6.3 mi | 3.00 pCi/L | 1 |
| Downingtown | 7.6 mi | 20.00 pCi/L | 1 |
| Garnet Valley | 9.1 mi | 7.00 pCi/L | 1 |
| Kennett Square | 9.5 mi | 9.00 pCi/L | 1 |
| Media | 10.7 mi | 7.00 pCi/L | 2 |
| Aston | 10.9 mi | 4.00 pCi/L | 1 |
| Wayne | 12.2 mi | 5.00 pCi/L | 1 |
| Broomall | 12.3 mi | 7.00 pCi/L | 2 |
Chester County Radon Profile
The bedrock and soils beneath Chester County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 8 cities in Chester County average 9.00 pCi/L across 10 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 Chester County.