Mount Holly Springs, PA Radon Levels

Q: What EPA Radon Zone is Mount Holly Springs in?

Mount Holly Springs is in Cumberland County, EPA Zone 1.

Q: How much does radon mitigation cost in Mount Holly Springs?

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

Check local Mount Holly Springs radon levels and find certified testing and mitigation professionals to keep your home safe

Mount Holly Springs, PA Radon Facts

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

County Cumberland County, PA

Zip Code 17065

Situated in Cumberland County within the Harrisburg Metro area, Mount Holly Springs sits in Pennsylvania's limestone-rich Cumberland Valley where radon levels can vary dramatically. While testing data for zip code 17065 remains limited, the area's Ordovician limestone bedrock creates geological conditions highly favorable for radon production and migration. Homeowners should prioritize testing, as Pennsylvania consistently ranks among the states with the highest residential radon levels nationwide.

12.56

pCi/L area average

Above EPA Action Level

Cumberland County average: 12.56 pCi/L, based on 9 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Mount Holly Springs 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+

Mount Holly Springs, 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 Mount Holly Springs, PA

No homeowner tests have been submitted for Mount Holly Springs 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
Carlisle	6.9 mi	11.33 pCi/L	3
Mechanicsburg	10.9 mi	13.75 pCi/L	4
Newville	12.8 mi	4.00 pCi/L	1
East Berlin	14.0 mi	20.00 pCi/L	1
Enola	18.0 mi	20.00 pCi/L	1
Orrtanna	18.8 mi	20.00 pCi/L	1
Dover	19.1 mi	13.00 pCi/L	1
Gettysburg	19.4 mi	6.50 pCi/L	2

Cumberland County Radon Profile

The bedrock and soils beneath Cumberland County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 4 cities in Cumberland County average 12.56 pCi/L across 9 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Cumberland County.

Radon FAQ for Mount Holly Springs, PA

What EPA Radon Zone is Mount Holly Springs in?

Mount Holly Springs and the 17065 zip code are in Cumberland 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 Mount Holly Springs?

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

Radon mitigation in Mount Holly Springs 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 Mount Holly Springs?

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.