Cecil, PA Radon Levels

Q: What EPA Radon Zone is Cecil in?

Cecil is in Washington County, EPA Zone 2.

Q: Why are radon readings shown from areas near Cecil?

No homeowner radon tests have been submitted for Cecil yet, so readings from the closest cities and the Washington County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Cecil?

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

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

Cecil, PA Radon Facts

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

County Washington County, PA

Zip Code 15321

Situated in Washington County within the Pittsburgh Metro region, Cecil overlies Pennsylvanian-era bedrock formations known for producing elevated radon levels throughout southwestern Pennsylvania. While local testing data for zip code 15321 remains unavailable, the area's geological reputation suggests residents should take radon seriously. Properties built on the region's coal-bearing strata and shale deposits warrant immediate professional radon assessment.

7.80

pCi/L area average

Above EPA Action Level

Washington County average: 7.80 pCi/L, based on 5 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Cecil 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+

Cecil, 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 Cecil, PA

No homeowner tests have been submitted for Cecil 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
Canonsburg	3.8 mi	8.33 pCi/L	3
Bethel Park	7.8 mi	10.00 pCi/L	1
South Park	10.3 mi	7.00 pCi/L	2
Washington	11.1 mi	5.00 pCi/L	1
Burgettstown	12.1 mi	9.00 pCi/L	1
Pittsburgh	13.4 mi	9.25 pCi/L	4
West Mifflin	13.8 mi	9.00 pCi/L	1
Sewickley	16.2 mi	15.00 pCi/L	2

Washington County Radon Profile

EPA mapping assigns Washington County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 3 cities in Washington County average 7.80 pCi/L across 5 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 Washington County home regardless of zone or a neighbor's results.

Radon FAQ for Cecil, PA

What EPA Radon Zone is Cecil in?

Cecil and the 15321 zip code are in Washington 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 Cecil?

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

Radon mitigation in Cecil 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 Cecil?

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.