Portersville, PA Radon Levels

Q: What EPA Radon Zone is Portersville in?

Portersville is in Butler County, EPA Zone 1.

Q: How much does radon mitigation cost in Portersville?

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

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

Portersville, PA Radon Facts

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

County Butler County, PA

Zip Code 16051

Located in Butler County within the Pittsburgh metropolitan area, Portersville sits on glacial deposits over shale and sandstone bedrock typical of western Pennsylvania. With no local radon testing data available for zip code 16051, homeowners should conduct professional testing to understand their risk levels. The community's mix of rural properties and suburban homes, many featuring full basements, creates conditions where radon can accumulate in below-grade spaces.

9.91

pCi/L area average

Above EPA Action Level

Butler County average: 9.91 pCi/L, based on 11 user-submitted tests across 6 cities in the county. No homeowner readings have been submitted for Portersville 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+

Portersville, 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 Portersville, PA

No homeowner tests have been submitted for Portersville 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
New Castle	11.1 mi	20.00 pCi/L	1
Evans City	12.2 mi	5.00 pCi/L	1
Zelienople	12.9 mi	5.00 pCi/L	2
Butler	13.9 mi	12.40 pCi/L	5
Grove City	15.1 mi	9.00 pCi/L	2
New Wilmington	16.4 mi	4.00 pCi/L	1
New Brighton	16.6 mi	20.00 pCi/L	1
Beaver Falls	16.8 mi	11.33 pCi/L	3

Butler County Radon Profile

Because of its underlying geology, Butler County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 6 cities in Butler County average 9.91 pCi/L across 11 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Butler County home regardless of zone or a neighbor's results.

Radon FAQ for Portersville, PA

What EPA Radon Zone is Portersville in?

Portersville and the 16051 zip code are in Butler 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 Portersville?

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

Radon mitigation in Portersville 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 Portersville?

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.