Ottawa, OH Radon Levels
Check local Ottawa radon levels and find certified testing and mitigation professionals to keep your home safe
Ottawa, OH Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Putnam County, OH
Zip Code
45875
Situated in Putnam County in northwestern Ohio, Ottawa currently has limited radon testing data available for the 45875 zip code. With the region's glacial clay soils over limestone bedrock, radon levels can vary significantly between neighboring properties. Homeowners should conduct professional radon testing to understand their specific exposure risk.
Ottawa, OH Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Ottawa?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Putnam County Pros
1-800-299-3578
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Radon FAQ for Ottawa, OH
What EPA Radon Zone is Ottawa in?
Ottawa and the 45875 zip code are in Putnam County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Ottawa?
Radon mitigation in Ottawa 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 Ottawa?
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 in Ohio with the most user-submitted radon test data, ranked by number of submissions.
| 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 |