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Marathon, NY Radon Levels

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


Marathon, NY Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Cortland County, NY
Zip Code 13803

Nestled in Cortland County within the Finger Lakes region, Marathon sits in an area where glacial deposits over sedimentary bedrock create variable radon conditions. Though specific testing data for zip code 13803 is currently limited, the region's geological characteristics suggest that professional radon assessment would be prudent for local homeowners. The Binghamton metro area's mix of older homes with basements and newer construction presents diverse foundation types that can affect radon entry patterns.

Marathon, NY Radon Mitigation

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

Need Radon Mitigation or Testing in Marathon?

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Radon FAQ for Marathon, NY

What EPA Radon Zone is Marathon in?
Marathon and the 13803 zip code are in Cortland 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 Marathon?
Radon mitigation in Marathon 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 Marathon?
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 New York

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

CityAvg User Radon LevelSubmissions
Brooklyn 10.80 pCi/L 5
Oneonta 6.50 pCi/L 4
Clifton Park 3.75 pCi/L 4
Elmira 15.00 pCi/L 3
Saugerties 10.67 pCi/L 3
Staten Island 4.00 pCi/L 3
New York 9.00 pCi/L 2
Yonkers 8.00 pCi/L 2
Horseheads 7.50 pCi/L 2
Poughkeepsie 16.00 pCi/L 1