West Middlesex, PA Radon Levels

Q: What EPA Radon Zone is West Middlesex in?

West Middlesex is in Mercer County, EPA Zone 2.

Q: How much does radon mitigation cost in West Middlesex?

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

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

West Middlesex, PA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Mercer County, PA

Zip Code 16159

Situated in northwestern Pennsylvania's Mercer County within the Pittsburgh Metro region, West Middlesex is built over glacial deposits and underlying Paleozoic bedrock that can facilitate radon entry into homes. The borough's housing consists primarily of older homes from the early 1900s through mid-century, many featuring basement foundations typical of western Pennsylvania construction. Testing data for zip code 16159 is currently limited, making home radon testing recommended for all residents.

8.08

pCi/L area average

Above EPA Action Level

Mercer County average: 8.08 pCi/L, based on 12 user-submitted tests across 6 cities in the county. No homeowner readings have been submitted for West Middlesex 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+

West Middlesex, 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 West Middlesex, PA

No homeowner tests have been submitted for West Middlesex 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
Hermitage	4.0 mi	6.00 pCi/L	2
Pulaski	5.6 mi	9.00 pCi/L	1
Sharpsville	6.5 mi	9.00 pCi/L	1
New Wilmington	7.1 mi	4.00 pCi/L	1
Transfer	10.5 mi	5.50 pCi/L	2
New Castle	13.7 mi	20.00 pCi/L	1
Greenville	16.5 mi	10.75 pCi/L	4
Grove City	19.2 mi	9.00 pCi/L	2

Mercer County Radon Profile

Mercer County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 6 cities in Mercer County average 8.08 pCi/L across 12 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 Mercer County.

Radon FAQ for West Middlesex, PA

What EPA Radon Zone is West Middlesex in?

West Middlesex and the 16159 zip code are in Mercer County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near West Middlesex?

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

Radon mitigation in West Middlesex 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 West Middlesex?

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.