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Gandee & Associates

Delaware, Ohio. Testing and mitigation

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

Call Gandee & Associates at (614) 591-4688Visit website of Gandee & Associates (opens in a new tab)

Credentials

Licenses and certifications

7 credentials are on file for this business, each exactly as the issuer's list printed it.

Ohio state licenses (7)

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
Mitigation licenseNo. RS741Ohio licensed radon mitigation specialistExpires January 20, 2028Verified November 3, 2026Verify RS741 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2118Ohio licensed radon testerExpires December 15, 2027Verified November 3, 2026Verify RT2118 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2120Ohio licensed radon testerExpires December 19, 2027Verified November 3, 2026Verify RT2120 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2123Ohio licensed radon testerExpires December 22, 2027Verified November 3, 2026Verify RT2123 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2124Ohio licensed radon testerExpires January 6, 2028Verified November 3, 2026Verify RT2124 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2131Ohio licensed radon testerExpires January 28, 2028Verified November 3, 2026Verify RT2131 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Testing licenseNo. RT2214Ohio licensed radon testerExpires October 23, 2028Verified November 3, 2026Verify RT2214 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)

Licensing in Ohio

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

Radon Education and Licensing Program, Ohio Department of Health, 614-728-0272.

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

Local radon figures

Radon in Delaware

Delaware lies in Delaware County, where 72.2% of 3,730 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 19.9 points above Ohio pooled (52.3%), 4th of 79 Ohio counties with 30 or more tests.

Radon test figures for the county Delaware lies in
CountyTestsAt or above 4 pCi/LMedianOhio, pooledRank in the stateEPA zone
Delaware County3,73072.2%6.4 pCi/L52.3%4 of 79Zone 1

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 Delaware

Around Delaware County, where Delaware lies, the nearest Ohio counties with a CDC figure for 2008 to 2017, laboratory run from 60.2% to 72.0% of tests at or above 4 pCi/L; the closest, Union County, is 19 miles away at 60.2%.

The nearest Ohio counties to Delaware County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Union County19 mi1,28560.2%4.8 pCi/L
Morrow County20 mi17765.0%5.7 pCi/L
Franklin County21 mi16,14271.9%6.8 pCi/L
Marion County23 mi26565.3%6.4 pCi/L
Licking County30 mi4,69471.2%7.0 pCi/L
Knox County32 mi1,53072.0%8.1 pCi/L

Nearby

Radon professionals nearest Delaware

More radon professionals in DelawareMore radon professionals in Ohio

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