Erwinna, PA Radon Levels

Q: What EPA Radon Zone is Erwinna in?

Erwinna is in Bucks County, EPA Zone 1.

Q: How much does radon mitigation cost in Erwinna?

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

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

Erwinna, PA Radon Facts

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

County Bucks County, PA

Zip Code 18920

Positioned along the Delaware River in Bucks County within the Philadelphia metro area, Erwinna sits on river valley alluvium over Triassic sandstone and shale bedrock. The community's historic character includes 18th and 19th-century homes with stone foundations, many featuring partial basements typical of Delaware Valley construction. With testing data currently limited for zip code 18920, homeowners in this scenic river valley should consider radon testing to establish baseline readings for their historic properties.

9.00

pCi/L area average

Above EPA Action Level

Bucks County average: 9.00 pCi/L, based on 25 user-submitted tests across 14 cities in the county. No homeowner readings have been submitted for Erwinna 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+

Erwinna, 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 Erwinna, PA

No homeowner tests have been submitted for Erwinna 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
Upper Black Eddy	3.3 mi	8.00 pCi/L	1
Pipersville	5.9 mi	5.00 pCi/L	1
New Hope	11.7 mi	5.33 pCi/L	3
Doylestown	12.8 mi	11.33 pCi/L	3
Hellertown	13.8 mi	13.00 pCi/L	1
Quakertown	15.0 mi	5.00 pCi/L	1
Easton	15.6 mi	12.33 pCi/L	6
Sellersville	16.1 mi	6.00 pCi/L	1

Bucks County Radon Profile

Bucks 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 14 cities in Bucks County average 9.00 pCi/L across 25 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 Bucks County to test, as levels can differ between neighboring homes.

Radon FAQ for Erwinna, PA

What EPA Radon Zone is Erwinna in?

Erwinna and the 18920 zip code are in Bucks 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 Erwinna?

No homeowner radon tests have been submitted for Erwinna yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Bucks County average—are the best available indicator of local conditions until Erwinna 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 Erwinna?

Radon mitigation in Erwinna 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 Erwinna?

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.