Copan, OK Radon Mitigation and Testing

Q: What EPA Radon Zone is Copan in?

Copan is in Washington County, EPA Zone 3.

Q: How much does radon mitigation cost in Copan?

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

Washington County

EPA Zone 3

Part of the Tulsa metropolitan area, Copan sits in Washington County within EPA Zone 3, suggesting moderate and variable radon potential. While specific testing data for this community is limited, the area's position in northeastern Oklahoma's mixed geological terrain warrants homeowner awareness. Local soil conditions and housing types, from older rural homes to newer construction, can influence radon entry and indoor accumulation patterns.

Copan, OK Radon Mitigation

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

Copan, OK Radon Testing

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

Copan Radon Facts

Key details about the radon risk profile for Copan and the 74022 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Washington County, OK

Zip Code

74022

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Copan and the 74022 zip code are located in Washington County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Copan, OK

What EPA Radon Zone is Copan in?

Copan and the 74022 zip code are in Washington 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 Copan?

Radon mitigation in Copan 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 Copan?

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 with the most user-submitted radon test data in the state.

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