Onaga, KS Radon Levels
Check local Onaga radon levels and find certified testing and mitigation professionals to keep your home safe
Onaga, KS Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Pottawatomie County, KS
Zip Code
66521
Situated in rural Pottawatomie County within zip code 66521, Onaga sits in northeastern Kansas where glacial deposits over limestone bedrock contribute to the EPA Zone 1 classification indicating high radon potential. The area's geological conditions are similar to those found throughout the Kansas-Nebraska border region known for elevated radon levels. Testing data for this small community is limited, making individual home testing particularly important given the zone designation.
Onaga, KS Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Onaga, KS
What EPA Radon Zone is Onaga in?
Onaga and the 66521 zip code are in Pottawatomie 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 Onaga?
Radon mitigation in Onaga 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 Onaga?
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 Kansas
Cities in Kansas with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Topeka | 6.00 pCi/L | 1 |
| Overland Park | No submissions | 0 |