Tangent, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Tangent in?

Tangent is in Linn County, EPA Zone 3.

Q: How much does radon mitigation cost in Tangent?

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

Linn County

EPA Zone 3

Positioned in Linn County within Oregon's Willamette Valley, Tangent sits on alluvial soils over volcanic bedrock that typically produces lower radon concentrations. The area's housing stock includes both historic farmhouses and newer residential development, with many homes featuring crawl spaces or slab-on-grade foundations common to the Pacific Northwest. Testing data for zip code 97389 remains limited, making individual home testing the best approach to assess radon levels.

Tangent, OR Radon Mitigation

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

Tangent, OR Radon Testing

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

Tangent Radon Facts

Key details about the radon risk profile for Tangent and the 97389 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Linn County, OR

Zip Code

97389

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Tangent and the 97389 zip code are located in Linn 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 Tangent, OR

What EPA Radon Zone is Tangent in?

Tangent and the 97389 zip code are in Linn 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 Tangent?

Radon mitigation in Tangent 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 Tangent?

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

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
Lincoln City	No submissions	0
West Linn	No submissions	0