Ada, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Ada in?

Ada is in Hardin County, EPA Zone 1.

Q: How much does radon mitigation cost in Ada?

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

Hardin County

EPA Zone 1

Situated in rural Hardin County, Ada serves as home to Ohio Northern University and features a mix of historic homes and student housing scattered throughout the community. The area's flat agricultural landscape sits on glacial till over limestone bedrock, geological conditions that can facilitate radon gas migration into buildings. Since specific testing data is unavailable for zip code 45810, both residents and property managers should prioritize radon assessment.

Ada, OH Radon Mitigation

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

Ada, OH Radon Testing

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

Ada Radon Facts

Key details about the radon risk profile for Ada and the 45810 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hardin County, OH

Zip Code

45810

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Ada and the 45810 zip code are located in Hardin 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 Ada, OH

What EPA Radon Zone is Ada in?

Ada and the 45810 zip code are in Hardin 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 Ada?

Radon mitigation in Ada 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 Ada?

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