Marengo, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Marengo in?

Marengo is in Morrow County, EPA Zone 1.

Q: How much does radon mitigation cost in Marengo?

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

Morrow County

EPA Zone 1

Found in Morrow County within the Columbus Metro region, Marengo currently has minimal radon data available for zip code 43334. Central Ohio's glacial deposits over shale bedrock create moderate radon potential across the region. Testing is recommended for all homes, especially older properties with full basements characteristic of rural Ohio construction patterns.

Marengo, OH Radon Mitigation

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

Marengo, OH Radon Testing

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

Marengo Radon Facts

Key details about the radon risk profile for Marengo and the 43334 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Morrow County, OH

Zip Code

43334

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Marengo and the 43334 zip code are located in Morrow 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 Marengo, OH

What EPA Radon Zone is Marengo in?

Marengo and the 43334 zip code are in Morrow 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 Marengo?

Radon mitigation in Marengo 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 Marengo?

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