Welches, OR Radon Levels

Q: What EPA Radon Zone is Welches in?

Welches is in Clackamas County, EPA Zone 3.

Q: How much does radon mitigation cost in Welches?

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

Check local Welches radon levels and find certified testing and mitigation professionals to keep your home safe

Welches, OR Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Clackamas County, OR

Zip Code 97067

Mountain resort community Welches in Clackamas County sits on the slopes of Mount Hood, where volcanic soils and Cascade Range geology create unique conditions for radon gas production and migration. As part of the greater Portland metropolitan area, this recreational destination experiences different geological influences than the valley floor. Testing data for zip code 97067 remains limited, making it important for homeowners to conduct radon testing, especially in mountain homes with foundations built into hillsides where radon can accumulate.

Welches, OR 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 Welches?

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Radon FAQ for Welches, OR

What EPA Radon Zone is Welches in?

Welches and the 97067 zip code are in Clackamas 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 Welches?

Radon mitigation in Welches 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 Welches?

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 Oregon

Cities in Oregon with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Corvallis	5.60 pCi/L	5
Astoria	9.25 pCi/L	4
La Grande	10.67 pCi/L	3
Bend	3.33 pCi/L	3
Salem	9.00 pCi/L	2
Eugene	7.00 pCi/L	2
Medford	7.00 pCi/L	1
Dundee	6.00 pCi/L	1
Ashland	4.00 pCi/L	1
Portland	4.00 pCi/L	1