Radon Testing & Mitigation in Elizabethtown, PA
High radon risk from Ordovician limestone and dolomite underlying the Lancaster County limestone plain. Elizabethtown sits on the same Great Valley carbonate sequence that produces some of Pennsylvania's highest radon concentrations across Lancaster and Lebanon counties. Karst dissolution features in the limestone bedrock create efficient vertical pathways for radon gas migration from deep geological sources.
High Radon Risk Area
Elizabethtown sits in EPA Zone 1 — testing is recommended for every home regardless of age or foundation type.
Radon Testing in Elizabethtown
In Elizabethtown-area ZIP codes, 50% of 6,552 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
Elizabethtown is located in an area with Great Valley Carbonate / Lancaster County Limestone Plain 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: $222,600 · Median year built: 1963
- Population: 11,857
- Foundation types: Basement (predominant in borough and suburban homes); Stone foundation (Lancaster County farmhouse conversions); Crawlspace
Lancaster County Context
Elizabethtown is a municipality of Lancaster County, EPA Zone 1. Zone designation is assigned at the county level, so Elizabethtown inherits its classification; countywide aggregate figures live on the county page.
See Lancaster County radon aggregate data →Measured Radon Data for Elizabethtown
These figures cover every test whose ZIP code is listed above. ZIP codes do not follow municipal lines, so the figures describe Elizabethtown-area ZIP codes, not the municipal boundary of Elizabethtown. 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 Elizabethtown
Active sub-slab depressurization (ASD) systems in Elizabethtown typically cost $950–$2,500. 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 (predominant in borough and suburban homes)
- Stone foundation (Lancaster County farmhouse conversions)
- Crawlspace
Systems used in the region
- Active sub-slab depressurization
- Radon-resistant new construction (RRNC)
- Sub-membrane depressurization (crawlspace)
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 Elizabethtown, Lancaster 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 does Elizabethtown have such high radon levels?
Elizabethtown sits on the Lancaster County limestone plain — Ordovician and Cambrian carbonate bedrock with extensive fracture porosity. This is the same Great Valley carbonate sequence that produces high radon across Lancaster, Lebanon, and Cumberland counties. Karst dissolution features in the limestone create caves, sinkholes, and fractured bedrock that efficiently channel radon gas from deep sources to the surface.
How does limestone karst geology affect radon entry in Elizabethtown homes?
Karst limestone dissolves along fractures and bedding planes, creating underground void networks that collect and channel radon gas. In Elizabethtown, these karst features can transmit radon laterally across large areas, meaning a home's radon level doesn't depend solely on the rock directly beneath it. DEP-certified contractors perform pressure field extension diagnostics to ensure mitigation systems account for karst-influenced airflow patterns.
What does radon mitigation cost in Elizabethtown?
Elizabethtown area radon mitigation typically costs $950–$2,500. Converted Lancaster County farmhouses with stone foundations cost more than standard suburban construction. Newer homes with radon-resistant features may need only fan activation. Request quotes from DEP-certified Lancaster County contractors.
What share of radon tests in Elizabethtown-area ZIP codes are at or above the EPA action level?
50% of the 6,552 basement tests reported to PA DEP from Elizabethtown-area ZIP codes measured 4.0 pCi/L or higher, 13 points above the 37% statewide share. The median result is 3.9 pCi/L. Of 552 first-floor tests, 29% 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 Elizabethtown need to be tested for radon?
Lancaster County is EPA Zone 1 — the highest radon-potential classification — so every home in Elizabethtown 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 Elizabethtown?
Active sub-slab depressurization (ASD) systems in the Elizabethtown area typically cost $950–$2,500. 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 Elizabethtown?
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 Elizabethtown, 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 Elizabethtown radon data cover?
The Elizabethtown radon dataset on this page covers ZIP code 17022. These are the ZCTAs assigned to Elizabethtown 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 Elizabethtown's municipal boundary.
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