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JCN Radon Services INC

Williamsport, Pennsylvania. Testing and mitigation

3 Pennsylvania state licenses verified against the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection list, last checked November 3, 2026.

Call JCN Radon Services INC at (570) 988-6800

Credentials

Licenses and certifications

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

Pennsylvania state licenses (3)

Issued by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026. No expiry date is on the record.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Mitigation licenseNo. 3518DEP certified radon mitigation firmVerified November 3, 2026Verify 3518 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab)
Mitigation licenseNo. 3565DEP certified radon mitigation firmVerified November 3, 2026Verify 3565 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab)
Testing licenseNo. 3518DEP certified radon testing firmVerified November 3, 2026Verify 3518 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab)

Licensing in Pennsylvania

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

Radon Division, Department of Environmental Protection, 800-237-2366.

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

Local radon figures

Radon in Williamsport

Williamsport lies in Lycoming County, where 45.2% of 562 radon tests reported to CDC (2020) were at or above 4 pCi/L, 14.9 points above Pennsylvania pooled (30.3%), 13th of 63 Pennsylvania counties with 30 or more tests.

Radon test figures for the county Williamsport lies in
CountyTestsAt or above 4 pCi/LMedianPennsylvania, pooledRank in the stateEPA zone
Lycoming County56245.2%3.5 pCi/L30.3%13 of 63Zone 1

Shares of tests people chose to run and report, by county (2020); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Williamsport

Around Lycoming County, where Williamsport lies, the nearest Pennsylvania counties with a CDC figure for 2020 run from 29.0% to 54.1% of tests at or above 4 pCi/L; the closest, Union County, is 26 miles away at 44.5%.

The nearest Pennsylvania counties to Lycoming County with 30 or more tests, 2020
CountyDistanceTestsAt or above 4 pCi/LMedian
Union County26 mi18244.5%3.3 pCi/L
Sullivan County30 mi3129.0%2.0 pCi/L
Montour County30 mi12341.5%3.1 pCi/L
Clinton County31 mi13354.1%4.5 pCi/L
Tioga County31 mi16045.0%3.2 pCi/L
Northumberland County39 mi27549.8%3.9 pCi/L

Nearby

Radon professionals nearest Williamsport

More radon professionals in WilliamsportMore radon professionals in Pennsylvania

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