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Waldo, OH Radon Levels

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


Waldo, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Marion County, OH
Zip Code 43356

Part of Marion County within the greater Columbus metropolitan area, Waldo lies in Ohio's glacial till region where dense clay soils overlay limestone bedrock. This geological combination creates favorable conditions for radon production and migration into homes with basement foundations. Since testing data remains unavailable for zip code 43356, homeowners should conduct radon testing given the area's Zone 1 EPA classification and Ohio's well-documented radon potential.

Waldo, 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 Waldo, OH

What EPA Radon Zone is Waldo in?
Waldo and the 43356 zip code are in Marion 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 Waldo?
Radon mitigation in Waldo 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 Waldo?
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