Ecosense
San Jose, CA
Listed for: TestingLaboratory
Verified:Illinois state license+2 more: Minnesota state license, Pennsylvania state license
ProfessionalsBusiness profile
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
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
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.
| License | Number | Status on the list | Expires | Verified | Check with the issuer |
|---|---|---|---|---|---|
| Testing license | No. RT2065 | Ohio licensed radon tester | Expires May 1, 2027 | Verified November 3, 2026 | Verify RT2065 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab) |
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
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.
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.
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%.
Nearby
San Jose, CA
Listed for: TestingLaboratory
Verified:Illinois state license+2 more: Minnesota state license, Pennsylvania state license
Torrance, CA
Listed for: TestingMitigation
Verified:Ohio state license
Listed for: TestingMitigation
Verified:Ohio state license
More radon professionals in Walnut CreekMore radon professionals in California
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