Mont Alto, PA Radon Levels

Q: What EPA Radon Zone is Mont Alto in?

Mont Alto is in Franklin County, EPA Zone 1.

Q: How much does radon mitigation cost in Mont Alto?

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

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

Mont Alto, PA Radon Facts

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

County Franklin County, PA

Zip Code 17237

Located in Franklin County within the Cumberland Valley, Mont Alto sits in zip code 17237 where Appalachian foothills meet fertile farmland. While radon testing data for the area remains limited, homeowners should consider testing given Pennsylvania's geology and the prevalence of basement foundations in the region. The community's position near the Chambersburg Metro makes professional radon testing services readily accessible for residents.

8.50

pCi/L area average

Above EPA Action Level

Franklin County average: 8.50 pCi/L, based on 14 user-submitted tests across 5 cities in the county. No homeowner readings have been submitted for Mont Alto 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+

Mont Alto, 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 Mont Alto, PA

No homeowner tests have been submitted for Mont Alto 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
Fayetteville	4.6 mi	7.00 pCi/L	3
Waynesboro	5.5 mi	5.00 pCi/L	1
Chambersburg	7.3 mi	10.14 pCi/L	7
Orrtanna	9.6 mi	20.00 pCi/L	1
Fairfield	11.0 mi	7.50 pCi/L	2
Greencastle	11.1 mi	9.00 pCi/L	1
Gettysburg	17.6 mi	6.50 pCi/L	2
Mercersburg	18.8 mi	6.50 pCi/L	2

Franklin County Radon Profile

Because of its underlying geology, Franklin 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 5 cities in Franklin County average 8.50 pCi/L across 14 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 Franklin County home regardless of zone or a neighbor's results.

Radon FAQ for Mont Alto, PA

What EPA Radon Zone is Mont Alto in?

Mont Alto and the 17237 zip code are in Franklin 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 Mont Alto?

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

Radon mitigation in Mont Alto 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 Mont Alto?

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.