Chelan, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Chelan in?

Chelan is in Chelan County, EPA Zone 3.

Q: How much does radon mitigation cost in Chelan?

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

Chelan County

EPA Zone 3

Situated in Chelan County along Lake Chelan in north-central Washington, this resort community sits on glacial and volcanic deposits. Current testing data for zip code 98816 is insufficient to establish definitive radon patterns for the area. Given the diverse geological setting and mix of seasonal and year-round housing, homeowners should conduct radon testing regardless of home age or foundation type.

Chelan, WA Radon Mitigation

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

Chelan, WA Radon Testing

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

Chelan Radon Facts

Key details about the radon risk profile for Chelan and the 98816 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Chelan County, WA

Zip Code

98816

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Chelan and the 98816 zip code are located in Chelan 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 Chelan, WA

What EPA Radon Zone is Chelan in?

Chelan and the 98816 zip code are in Chelan 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 Chelan?

Radon mitigation in Chelan 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 Chelan?

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 Washington

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

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 pCi/L	4
Bellevue	3.75 pCi/L	4
Spokane	11.67 pCi/L	3
Camas	8.00 pCi/L	3
Centralia	7.00 pCi/L	3
Bellingham	4.50 pCi/L	2
Kirkland	4.50 pCi/L	2
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0