Cadiz, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Cadiz in?

Cadiz is in Harrison County, EPA Zone 1.

Q: How much does radon mitigation cost in Cadiz?

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

Harrison County

EPA Zone 1

Positioned in Harrison County in eastern Ohio's Appalachian region, Cadiz (43907) rests on Pennsylvanian shale and coal formations where radon testing data remains limited. The area's sedimentary geology and historic coal mining activities can influence radon levels unpredictably across different properties. Testing provides residents the only reliable way to assess their home's individual radon exposure.

Cadiz, OH Radon Mitigation

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

Cadiz, OH Radon Testing

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

Cadiz Radon Facts

Key details about the radon risk profile for Cadiz and the 43907 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Harrison County, OH

Zip Code

43907

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Cadiz and the 43907 zip code are located in Harrison 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 Cadiz, OH

What EPA Radon Zone is Cadiz in?

Cadiz and the 43907 zip code are in Harrison 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 Cadiz?

Radon mitigation in Cadiz 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 Cadiz?

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