Seminole, PA Radon Levels

Q: What EPA Radon Zone is Seminole in?

Seminole is in Armstrong County, EPA Zone 1.

Q: How much does radon mitigation cost in Seminole?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Seminole radon levels and find certified testing and mitigation professionals to keep your home safe

Seminole, PA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Armstrong County, PA

Zip Code 16253

Located in Armstrong County along the Allegheny River valley, Seminole sits within Pennsylvania's western coalfield region where Pennsylvanian-era sedimentary rocks create variable radon conditions. Many homes in zip code 16253 feature older construction with stone or block basements typical of early-to-mid 20th century building practices. Testing data for radon levels remains limited in this Pittsburgh Metro area community, making professional radon testing essential for homeowners to understand their individual exposure risk.

13.50

pCi/L area average

Above EPA Action Level

Armstrong County average: 13.50 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Seminole itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Seminole, PA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Seminole, PA

No homeowner tests have been submitted for Seminole yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Kittanning	13.0 mi	13.50 pCi/L	2
Marchand	18.0 mi	14.00 pCi/L	1
Punxsutawney	19.6 mi	20.00 pCi/L	1
Karns City	19.7 mi	20.00 pCi/L	1
Brookville	19.8 mi	8.00 pCi/L	3
Marion Center	20.5 mi	3.00 pCi/L	1
Parker	20.7 mi	20.00 pCi/L	1
Reynoldsville	25.6 mi	6.00 pCi/L	1

Armstrong County Radon Profile

Armstrong County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Armstrong County average 13.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Armstrong County to test, as levels can differ between neighboring homes.

Radon FAQ for Seminole, PA

What EPA Radon Zone is Seminole in?

Seminole and the 16253 zip code are in Armstrong County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Seminole?

No homeowner radon tests have been submitted for Seminole yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Armstrong County average—are the best available indicator of local conditions until Seminole homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Seminole?

Radon mitigation in Seminole typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Seminole?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.