Mercersburg, PA Radon Levels
Check local Mercersburg radon levels and find certified testing and mitigation professionals to keep your home safe
Mercersburg, PA Radon Facts
Nestled in Franklin County within south-central Pennsylvania's Cumberland Valley, Mercersburg shows an average radon level of 6.5 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold. The area's limestone bedrock and karst geology, typical of the Chambersburg Metro region, create favorable conditions for radon production and migration. Homes in the 17236 zip code should prioritize radon testing and mitigation systems.
Based on 2 user-submitted radon tests for homes in Mercersburg, PA. The EPA recommends taking action at or above 4.0 pCi/L.
Mercersburg, PA Radon Mitigation
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Mercersburg, PA Radon Levels
User-submitted radon test readings from homes in the Mercersburg area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 8 pCi/L | Mercersburg, PA | 0-20 Years | Full Basement |
| 5 pCi/L | Mercersburg, PA | 51-99 Years | Full Basement |
Have a radon test result for Mercersburg? Submit your reading to help other homeowners.
Radon Readings Near Mercersburg, PA
Compare radon levels in Mercersburg with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Greencastle | 8.9 mi | 9.00 pCi/L | 1 |
| Mc Connellsburg | 9.7 mi | 8.00 pCi/L | 1 |
| Chambersburg | 15.4 mi | 10.14 pCi/L | 7 |
| Waynesboro | 18.5 mi | 5.00 pCi/L | 1 |
| Fayetteville | 20.8 mi | 7.00 pCi/L | 3 |
| Orrtanna | 28.3 mi | 20.00 pCi/L | 1 |
| Fairfield | 29.1 mi | 7.50 pCi/L | 2 |
| Gettysburg | 36.4 mi | 6.50 pCi/L | 2 |
Franklin County Radon Profile
Because of its underlying geology, Franklin County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 5 cities in Franklin County average 8.50 pCi/L across 14 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Franklin County home regardless of zone or a neighbor's results.