Radon levels in Crawford County, Pennsylvania are moderate based on EPA Zone 2. 2 cities have documented radon testing data through PA Radon Hub. The EPA action level of 4 pCi/L is exceeded in approximately 29.8% of tested homes in this region.
Radon in Crawford County, Pennsylvania
Crawford County is classified as Zone 2 on the EPA Map of Radon Zones. This page aggregates radon risk data for every PA Radon Hub city in the county, explains the underlying geology, and connects homeowners with DEP-certified testing and mitigation professionals serving Crawford County.
Radon Risk in Crawford County
The dominant subsurface formation across PA Radon Hub cities in Crawford County is Appalachian Plateau / Glaciated Plateau. Radon is produced continuously in uranium-bearing bedrock, migrates through soil gas, and enters the built environment through foundation penetrations. Pennsylvania's combination of fractured bedrock, older housing stock, and pronounced stack effect during the heating season drives elevated indoor radon across most of the Commonwealth.
The EPA zone classification divides counties by predicted average indoor radon: Zone 1 predicts average indoor radon above 4.0 pCi/L, Zone 2 predicts 2.0–4.0 pCi/L, and Zone 3 predicts below 2.0 pCi/L. Zone classifications are population averages — individual home results can vary substantially. Crawford County's Zone 2 classification means the county has moderate baseline radon potential, but every home should be tested individually.
Cities We Serve in Crawford County
SB 760 School Testing Mandate in Crawford County
Pennsylvania Senate Bill 760 requires radon testing in every public school building constructed before 2014 that sits in an EPA Zone 1 county. Initial testing must be completed during the 2026–2027 academic year under ANSI-AARST MA-MFLB protocol, with mitigation required within six months of any confirmed result at or above 4.0 pCi/L. For Crawford County school districts, the mandate applies to the subset of buildings located within Zone 1 boundaries and will raise community awareness of radon across the broader county. For full compliance details, see the Pennsylvania Radon Compliance 2026 guide.
Find a DEP-Certified Radon Contractor in Crawford County
PA Radon Hub connects Crawford County homeowners with independent DEP-certified radon testing and mitigation professionals. All contractors verified against the PA Department of Environmental Protection Bureau of Radiation Protection directory.
For detailed pricing by foundation type across Pennsylvania, see the Pennsylvania Radon Mitigation Cost Guide.
Verify DEP certification status before hiring — search the PA DEP certified contractor directory.
PA Radon Hub is an independent informational resource. We do not perform radon testing or mitigation. We connect homeowners with DEP-certified professionals — verify any contractor's certification at dep.pa.gov/radon before hiring.
Frequently Asked Questions
Crawford County is classified as Zone 2 — moderate radon potential — based on EPA radon zone mapping. 29.8% of tested homes across PA Radon Hub cities in this county exceed the 4.0 pCi/L action level.
The dominant subsurface formation referenced across PA Radon Hub cities in Crawford County is Appalachian Plateau / Glaciated Plateau. Radon is produced by the decay of radium-226 in uranium-bearing bedrock and migrates into buildings through soil gas pathways — cracks, utility penetrations, and sump pits in the foundation.
Yes if Crawford County schools fall in EPA Zone 1 and were built before 2014. Pennsylvania Senate Bill 760 requires public school buildings meeting those criteria to complete radon testing in the 2026–2027 academic year, with mitigation required within six months of any confirmed result at or above 4.0 pCi/L.