Delphos, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Delphos in?

Delphos is in Allen County, EPA Zone 1.

Q: How much does radon mitigation cost in Delphos?

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

Allen County

EPA Zone 1

Situated in Allen County, Delphos sits atop Ohio's glacial deposits where clay-rich soils over limestone bedrock can facilitate radon accumulation in homes with basements. Testing data for this 45833 zip code community remains limited, making individual assessment particularly important for residents. Given Ohio's variable radon patterns, homeowners should conduct professional testing to establish baseline readings for their specific properties.

Delphos, OH Radon Mitigation

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

Delphos, OH Radon Testing

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

Delphos Radon Facts

Key details about the radon risk profile for Delphos and the 45833 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Allen County, OH

Zip Code

45833

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Delphos and the 45833 zip code are located in Allen 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 Delphos, OH

What EPA Radon Zone is Delphos in?

Delphos and the 45833 zip code are in Allen 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 Delphos?

Radon mitigation in Delphos 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 Delphos?

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