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SundinServices LLC dba FourSquare Inspection

Granville, Ohio. Testing

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

Call SundinServices LLC dba FourSquare Inspection at (740) 404-1898

Credentials

Licenses and certifications

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

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. RT1212Ohio licensed radon testerExpires July 17, 2027Verified November 3, 2026Verify RT1212 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 Granville

Granville lies in Licking County, where 71.2% of 4,694 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 18.9 points above Ohio pooled (52.3%), 7th of 79 Ohio counties with 30 or more tests.

Radon test figures for the county Granville lies in
CountyTestsAt or above 4 pCi/LMedianOhio, pooledRank in the stateEPA zone
Licking County4,69471.2%7.0 pCi/L52.3%7 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 Granville

Around Licking County, where Granville lies, the nearest Ohio counties with a CDC figure for 2008 to 2017, laboratory run from 48.9% to 76.8% of tests at or above 4 pCi/L; the closest, Knox County, is 21 miles away at 72.0%.

The nearest Ohio counties to Licking County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Knox County21 mi1,53072.0%8.1 pCi/L
Fairfield County25 mi1,17576.8%7.4 pCi/L
Perry County28 mi9048.9%3.8 pCi/L
Franklin County29 mi16,14271.9%6.8 pCi/L
Muskingum County30 mi39156.3%4.9 pCi/L
Delaware County30 mi3,73072.2%6.4 pCi/L

Nearby

Radon professionals nearest Granville

More radon professionals in GranvilleMore radon professionals in Ohio

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