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AEI Consultants

Walnut Creek, California. Testing

1 Ohio state license verified against the Ohio Department of Health, Radon Education and Licensing Program list, last checked November 3, 2026.

Credentials

Licenses and certifications

1 credential is on file for this business, exactly as the issuer's list printed it.

These are Ohio licenses, and the business address is in California.

Radon411 has no California record for this business. Before hiring it for a home in California, check what California asks for. What California requires

Ohio state license (1)

Issued by the Ohio Department of Health, Radon Education and Licensing Program, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026.

LicenseNumberStatus on the listExpiresVerifiedCheck with the issuer
Testing licenseNo. RT2065Ohio licensed radon testerExpires May 1, 2027Verified November 3, 2026Verify RT2065 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)

Licensing in California

California's radon program says the state licenses or certifies radon professionals.

California Indoor Radon Program, California Department of Public Health, 1-800-745-7236.

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

Local radon figures

Radon in Walnut Creek

Walnut Creek lies in Contra Costa County, where 8.8% of 285 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 1.5 points below California pooled (10.3%), 22nd of 33 California counties with 30 or more tests.

Radon test figures for the county Walnut Creek lies in
CountyTestsAt or above 4 pCi/LMedianCalifornia, pooledRank in the stateEPA zone
Contra Costa County2858.8%0.9 pCi/L10.3%22 of 33Zone 2

Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Walnut Creek

Around Contra Costa County, where Walnut Creek lies, the nearest California counties with a CDC figure for 2008 to 2017, laboratory run from 2.8% to 15.8% of tests at or above 4 pCi/L; the closest, Alameda County, is 19 miles away at 6.7%.

The nearest California counties to Contra Costa County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Alameda County19 mi4786.7%0.7 pCi/L
Solano County24 mi3815.8%0.9 pCi/L
San Francisco County30 mi2462.8%0.5 pCi/L
San Joaquin County36 mi7414.9%1.4 pCi/L
San Mateo County41 mi4689.2%0.9 pCi/L
Marin County45 mi956.3%0.8 pCi/L

Nearby

Radon professionals nearest Walnut Creek

More radon professionals in Walnut CreekMore radon professionals in California

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