May, OK Radon Levels
Check local May radon levels and find certified testing and mitigation professionals to keep your home safe
May, OK Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Harper County, OK
Zip Code
73851
Northwestern Oklahoma's Harper County contains May, where Permian red beds and gypsum deposits typically produce lower radon readings across this 73851 agricultural area. Limited testing data encourages homeowners to establish individual baseline levels, though regional geology generally maintains radon below EPA action thresholds.
May, OK 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 May?
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Radon FAQ for May, OK
What EPA Radon Zone is May in?
May and the 73851 zip code are in Harper County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in May?
Radon mitigation in May 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 May?
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 Oklahoma
Cities in Oklahoma with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Tulsa | 8.14 pCi/L | 7 |
| Oklahoma City | 7.00 pCi/L | 1 |
| Edmond | 5.00 pCi/L | 1 |