Radon Testing & Mitigation in Huntingdon, PA
High radon potential. Huntingdon Valley limestone in the Ridge-and-Valley fold belt produces uranium-bearing carbonate bedrock with karst pathways into homes across the county.
High Radon Risk Area
Huntingdon sits in EPA Zone 1 — testing is recommended for every home regardless of age or foundation type.
Radon Testing in Huntingdon
In Huntingdon-area ZIP codes, 49% of 2,273 basement tests reported to PA DEP measured 4.0 pCi/L or higher, with a median of 3.9 pCi/L. Readings differ from house to house, so each home needs its own test. Start with a short-term test of 48–96 hours on the lowest lived-in level. A long-term test of 90 days or more averages out seasonal swings.
A result at or above EPA's 4.0 pCi/L action level calls for a confirming test or mitigation. Retest after a mitigation system goes in, and at least every two years from then on. Pennsylvania requires DEP certification for anyone who tests as a paid service; you may test your own home with a kit from a DEP-certified laboratory. For a home sale, read the Pennsylvania real estate radon testing guide.
Local Geology & Risk Factors
Huntingdon is located in an area with Ridge and Valley / Huntingdon Valley Limestone 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: $189,400 · Median year built: 1942
- Population: 6,884
- Foundation types: Basement (most common); Crawlspace (moderate); Slab-on-grade (varies)
Huntingdon County Context
Huntingdon is a municipality of Huntingdon County, EPA Zone 1. Zone designation is assigned at the county level, so Huntingdon inherits its classification; countywide aggregate figures live on the county page.
See Huntingdon County radon aggregate data →Measured Radon Data for Huntingdon
These figures cover every test whose ZIP code is listed above. ZIP codes do not follow municipal lines, so the figures describe Huntingdon-area ZIP codes, not the municipal boundary of Huntingdon. They count tests, not homes.
Source: PA Department of Environmental Protection, Radon Test Results, data.pa.gov. Tests through July 2026. Retrieved September 29, 2026.
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Radon Mitigation Cost in Huntingdon
Active sub-slab depressurization (ASD) systems in Huntingdon typically cost $850–$2,000. 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 Huntingdon, Huntingdon 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
Why is radon a concern in Huntingdon, PA?
Huntingdon sits in the Huntingdon Valley, where Ridge-and-Valley folding has exposed uranium-bearing limestone bedrock. Solution cavities in the carbonate create direct soil-gas pathways into basements. Huntingdon County is EPA Zone 1. 53% of the 3,957 basement tests reported to PA DEP from Huntingdon County measured 4.0 pCi/L or higher.
What does radon mitigation cost in Huntingdon County?
Most Huntingdon County mitigation systems run $850–$2,000 installed. Active sub-slab depressurization is the standard approach. Older homes around Juniata College and downtown Huntingdon with stone foundations often require additional sealing before mitigation achieves target levels.
Does Raystown Lake affect radon levels in nearby homes?
Surface water is not a material indoor air pathway. But homes around Raystown Lake sit on the same limestone valley floor as Huntingdon proper, so they share the elevated radon baseline. Test every home individually — lakeshore properties are not lower-risk by virtue of proximity to water.
What share of radon tests in Huntingdon-area ZIP codes are at or above the EPA action level?
49% of the 2,273 basement tests reported to PA DEP from Huntingdon-area ZIP codes measured 4.0 pCi/L or higher, 12 points above the 37% statewide share. The median result is 3.9 pCi/L. Of 255 first-floor tests, 22% measured 4.0 pCi/L or higher. The figures cover the ZIP codes listed on this page, not the municipal boundary, and they count tests, not homes.
Do homes in Huntingdon need to be tested for radon?
Huntingdon County is EPA Zone 1 — the highest radon-potential classification — so every home in Huntingdon 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 Huntingdon?
Active sub-slab depressurization (ASD) systems in the Huntingdon area typically cost $850–$2,000. 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 Huntingdon?
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 Huntingdon, 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 Huntingdon radon data cover?
The Huntingdon radon dataset on this page covers ZIP code 16652. These are the ZCTAs assigned to Huntingdon in the Census 2020 ZCTA-to-Place relationship file, and the page counts every test in the PA DEP record on data.pa.gov that carries one of them. A ZIP code can reach into a neighboring municipality, so the figures describe these ZIP codes rather than Huntingdon's municipal boundary.
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