Radon Mitigation in Wellsboro
Moderate radon potential. Glaciated Northern Tier uplands carry Pleistocene till over Devonian shale, producing baseline indoor radon and pockets of elevated readings near gas-development corridors.
High Radon Risk Area
Wellsboro sits in EPA Zone 1 — testing is recommended for every home regardless of age or foundation type.
Local Geology & Risk Factors
Wellsboro is located in an area with Allegheny Plateau / Northern Tier Glaciated Uplands geology, which contributes to elevated radon levels. The Pennsylvania DEP identifies this region as having significant radon potential due to uranium-bearing rock formations.
Testing is essential because radon levels can vary significantly between neighboring homes based on construction, soil permeability, and ventilation.
See Pennsylvania radon levels and EPA radon zone classifications →
Quick Facts
- Median home value: $195,400 · Median year built: 1942
- Population: 3,445
- Foundation types: Basement (most common); Crawlspace (moderate); Slab-on-grade (varies)
Tioga County Context
Wellsboro is a municipality of Tioga County, EPA Zone 1. Zone designation is assigned at the county level, so Wellsboro inherits its classification; countywide aggregate figures live on the county page.
See Tioga County radon aggregate data →Measured Radon Data for Wellsboro
Source: PA DEP RadonZip Tool, January 1990 – December 2025 · Updated 2026-05-20
Radon Mitigation Cost in Wellsboro
Active sub-slab depressurization (ASD) systems in Wellsboro typically cost $950–$2,050. Standard basement installs on modern poured concrete fall at the lower end; historic foundations, block-wall depressurization, multi-point suction, and crawlspace encapsulation push costs higher.
Foundations covered locally
- Basement (most common)
- Crawlspace (moderate)
- Slab-on-grade (varies)
Systems used in the region
- Active sub-slab depressurization
- Sump pit depressurization
- Passive soil depressurization
Certification & Compliance
All Pennsylvania radon testing and mitigation professionals must hold active PA DEP certification. Ask any contractor for their certification number and verify it before signing.
Pennsylvania's Real Estate Seller Disclosure Law (68 Pa.C.S. §§ 7301–7315) requires sellers to disclose known material defects to buyers under § 7303; the mandated disclosure form records radon under § 7304(b)(14). Sellers who have never tested are not compelled to test — § 7308 imposes no affirmative duty to investigate — but pre-listing testing is standard practice across most PA markets.
Under 25 Pa. Code § 240 — the Pennsylvania chapter governing radon certification — every radon service provider working in the Commonwealth must hold current DEP certification. Verify the contractor's status via the DEP Radon Services Directory before hiring.
Verify Contractor Certification — PA DEP Official Directory for Wellsboro, Tioga County
View PA DEP Certified Contractor DirectoryThe PA Department of Environmental Protection maintains the official list of certified radon testers and mitigators, sorted by county and updated monthly. Always verify certification before hiring any contractor.
Directory resource provided by PA DEP Bureau of Radiation Protection, Radon Division.
Frequently Asked Questions
Is radon a concern in Wellsboro, PA?
Yes. Wellsboro sits in glaciated Northern Tier uplands near the Pine Creek Gorge, where Pleistocene till caps Devonian shale including Marcellus formations. Tioga County carries an EPA Zone 1 classification, and approximately 29% of tested homes exceed 4.0 pCi/L.
What does radon mitigation cost in Tioga County?
Most Tioga County mitigation systems run $950–$2,050 installed. Active sub-slab depressurization is the standard approach. Older Victorian-era homes around downtown Wellsboro with stone foundations sometimes require additional sealing before mitigation achieves target levels.
Does Marcellus gas development affect Tioga County indoor radon?
Surface gas operations do not directly elevate indoor radon. But Tioga County hosts intensive Marcellus development, and the underlying shale produces baseline soil-gas radon throughout the region. Test every home regardless of drilling activity.
What's the average radon level in Wellsboro?
Wellsboro's DEP-recorded basement average is 5.65 pCi/L across 1,372 tests. The EPA action level for mitigation is 4.0 pCi/L, so a sizable share of Wellsboro homes exceed the threshold. The highest single result in the local dataset is 111.6 pCi/L.
Do homes in Wellsboro need to be tested for radon?
Tioga County is EPA Zone 1 — the highest radon-potential classification — so every home in Wellsboro should be tested regardless of age, foundation type, or neighborhood. Short-term charcoal or continuous monitor tests take 48–96 hours and cost $15–$50; long-term alpha-track tests run 90 days and better represent annual averages. If the result meets or exceeds 4.0 pCi/L, mitigation by a DEP-certified professional is recommended.
How much does radon mitigation cost in Wellsboro?
Active sub-slab depressurization (ASD) systems in the Wellsboro area typically cost $950–$2,050. Standard basement installations on modern poured-concrete foundations fall at the lower end; historic foundations, block-wall depressurization, multi-point suction, and crawlspace encapsulation push costs toward the upper end. All work must be performed by a DEP-certified mitigation professional under 25 Pa. Code § 240.
Is radon disclosure required when selling a home in Wellsboro?
Pennsylvania's Real Estate Seller Disclosure Law (68 Pa.C.S. §§ 7301–7315) requires residential sellers to disclose known material defects to buyers (§ 7303). The state-mandated disclosure form covers 'presence of hazardous substances' at § 7304(b)(14) — where any known elevated radon test result or existing mitigation system is recorded. Sellers who have never tested are not required to test: § 7308 imposes no affirmative duty to investigate. In Wellsboro, the practical reality is that most buyers request radon testing during the inspection contingency period. Sellers who test and mitigate before listing eliminate the most common contract contingency and preserve negotiating position.
Which ZIP codes does the Wellsboro radon data cover?
The Wellsboro radon dataset on this page covers ZIP code 16901. These are the ZCTAs assigned to Wellsboro in the Census 2020 ZCTA-to-Place relationship file and used for the PA DEP RadonZip Tool aggregation. Neighboring ZIP codes belong to adjacent municipalities and appear on their own PA Radon Hub pages.
Are Wellsboro Area School District buildings subject to SB 760?
Tioga County is in EPA Zone 1 and is served by 5 school districts, including Wellsboro Area School District. Pennsylvania Senate Bill 760, if enacted as drafted, would apply to all public school buildings in Tioga County regardless of which district operates them. The bill remains in committee. Buildings in Zone 1 counties like Tioga County would be highest priority under the proposed framework. If SB 760 is enacted, mitigation timelines, thresholds, and qualifying buildings would be set by the final bill text and any subsequent DEP implementing regulations. PA Radon Hub tracks this legislation; specific deadlines remain pending.
Connect with a DEP-Certified Radon Pro in Wellsboro
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