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Cascade Environmental Solutions

Portland, Oregon. Testing

No license or certification is on file for this business yet.

Credentials

Licenses and certifications

No license or certification is on file for this business yet.

Licensing in Oregon

Ask Oregon Radon Awareness Program what it requires before you hire.

Oregon Radon Awareness Program, Oregon Health Authority.

What Oregon requires, in its program’s own words, and how to check a credential

Local radon figures

Radon in Portland

Portland lies mostly in Multnomah County, where 27.8% of 792 radon tests reported to CDC (2023) were at or above 4 pCi/L, 8.9 points above Oregon pooled (18.9%), 3rd of 14 Oregon counties with 30 or more tests.

Radon test figures for the counties Portland lies in
CountyShare of PortlandTestsAt or above 4 pCi/LMedianOregon, pooledRank in the stateEPA zone
Multnomah County99.5%79227.8%2.0 pCi/L18.9%3 of 14Zone 2
Clackamas County0.4%32115.9%1.6 pCi/L18.9%7 of 14Zone 3
Washington County0.1%39611.4%1.3 pCi/L18.9%10 of 14Zone 2

Shares of tests people chose to run and report, by county (2023); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Portland

Around Multnomah County, one of the counties Portland lies in, the nearest Oregon counties with a CDC figure for 2023 run from 4.9% to 39.0% of tests at or above 4 pCi/L; the closest, Hood River County, is 37 miles away at 39.0%.

The nearest Oregon counties to Multnomah County with 30 or more tests, 2023
CountyDistanceTestsAt or above 4 pCi/LMedian
Hood River County37 mi4139.0%2.2 pCi/L
Marion County45 mi19416.0%1.4 pCi/L
Yamhill County49 mi3321.2%1.6 pCi/L
Polk County66 mi7910.1%1.4 pCi/L
Linn County73 mi414.9%0.8 pCi/L
Benton County88 mi3215.6%0.9 pCi/L

Nearby

Other radon professionals in Portland

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