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Ashley, OH Radon Levels

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


Ashley, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Delaware County, OH
Zip Code 43003

Located in central Ohio's Delaware County within the Columbus Metro, Ashley sits on glacial till deposits over shale bedrock that can produce variable radon levels across the region. Although specific testing data for zip code 43003 is unavailable, Ohio's geological conditions and statewide radon patterns suggest moderate-to-high potential. Homeowners should prioritize professional testing, especially in the many suburban developments with full basements that characterize this growing area.

Ashley, OH Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon FAQ for Ashley, OH

What EPA Radon Zone is Ashley in?
Ashley and the 43003 zip code are in Delaware 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.
How much does radon mitigation cost in Ashley?
Radon mitigation in Ashley 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 Ashley?
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.

Most Active Radon Markets in Ohio

Cities in Ohio with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Marietta 8.00 pCi/L 5
Cincinnati 5.20 pCi/L 5
Hilliard 11.75 pCi/L 4
Wilmington 5.25 pCi/L 4
Newark 15.00 pCi/L 3
Athens 11.33 pCi/L 3
Findlay 10.33 pCi/L 3
Perrysburg 9.67 pCi/L 3
Powell 8.33 pCi/L 3
Columbus 6.00 pCi/L 3