Radon in Tioga County, Pennsylvania

Radon Risk in Tioga County

The dominant subsurface formation across PA Radon Hub cities in Tioga County is Allegheny Plateau / Northern Tier Glaciated Uplands. 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. Tioga County's Zone 1 classification means the county has high baseline radon potential, but every home should be tested individually.

Cities We Serve in Tioga County

Radon and Home Sales in Tioga County

Radon disclosure expectations and pre-sale testing practices vary across Pennsylvania, but Tioga County buyers and lenders increasingly request results during the inspection contingency period. Sellers often mitigate ahead of listing to avoid renegotiation when post-inspection results return high.

For a county-by-county breakdown of disclosure norms, mortgage requirements, and buyer/seller obligations, see the Radon and Home Sales in Pennsylvania guide.

SB 760 Proposed School Testing Mandate in Tioga County

Pennsylvania Senate Bill 760, if enacted as currently drafted, would require radon testing in every public school building constructed before 2014 that sits in an EPA Zone 1 county. Initial testing would be required to occur 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. As of 2026 SB 760 remains in committee, so no testing mandate is currently in force. For Tioga County school districts — which fall in Zone 1 — the proposed mandate would apply directly and, if enacted, would surface results across most pre-2014 buildings during the 2026–2027 window. For full compliance details, see the Pennsylvania Radon Compliance 2026 guide.

Request Radon Information for Tioga County

Submit your request and we will connect you with a DEP-certified professional serving Tioga County. All providers 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 Pennsylvania property owners with independent, DEP-certified professionals — verify any contractor's certification at dep.pa.gov/radon before hiring.

Measured Radon Levels in Tioga County

PA DEP RadonZip Tool, January 1990 – December 2025 · Last updated 2026-05-20

Frequently Asked Questions