De Graff, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is De Graff in?

De Graff is in Logan County, EPA Zone 1.

Q: How much does radon mitigation cost in De Graff?

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

Logan County

EPA Zone 1

Positioned in west-central Logan County, De Graff sits on glacial till over limestone bedrock that characterizes much of Ohio's radon-prone regions. Testing data for zip code 43318 is currently limited, though the area's geological conditions suggest potential for elevated radon levels. Rural and small-town homes with basements, particularly older construction with stone or block foundations, should consider radon testing to establish safe indoor air quality.

De Graff, OH Radon Mitigation

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

De Graff, OH Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

De Graff Radon Facts

Key details about the radon risk profile for De Graff and the 43318 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Logan County, OH

Zip Code

43318

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

De Graff and the 43318 zip code are located in Logan County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for De Graff, OH

What EPA Radon Zone is De Graff in?

De Graff and the 43318 zip code are in Logan 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 De Graff?

Radon mitigation in De Graff 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 De Graff?

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
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
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1