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RFD Radon LLC

Rockford, Illinois. Testing

1 Illinois state license verified against the Illinois Emergency Management Agency (IEMA) list, last checked November 11, 2026.

Call RFD Radon LLC at (563) 949-0442

Credentials

Licenses and certifications

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

Illinois state license (1)

Issued by the Illinois Emergency Management Agency (IEMA), not by NRPP or NRSB. Radon411 last checked the list on November 11, 2026. No expiry date is on the record.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Testing licenseNo. RNI20263587Measurement ProfessionalVerified November 11, 2026Verify RNI20263587 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab)

Licensing in Illinois

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

IEMA-OHS Radon Program, Illinois Emergency Management Agency and Office of Homeland Security, (800) 325-1245.

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

Local radon figures

Radon in Rockford

Rockford lies mostly in Winnebago County, where 34.9% of 2,703 radon tests reported to CDC (2017) were at or above 4 pCi/L, 1.2 points above Illinois pooled (33.7%), 51st of 70 Illinois counties with 30 or more tests.

Radon test figures for the counties Rockford lies in
CountyShare of RockfordTestsAt or above 4 pCi/LMedianIllinois, pooledRank in the stateEPA zone
Winnebago County99.1%2,70334.9%2.9 pCi/L33.7%51 of 70Zone 1
Ogle County0.9%63652.4%4.1 pCi/L33.7%18 of 70Zone 1

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

The counties around Rockford

Around Winnebago County, one of the counties Rockford lies in, the nearest Illinois counties with a CDC figure for 2017 run from 35.1% to 62.9% of tests at or above 4 pCi/L; the closest, Boone County, is 17 miles away at 46.9%.

The nearest Illinois counties to Winnebago County with 30 or more tests, 2017
CountyDistanceTestsAt or above 4 pCi/LMedian
Boone County17 mi52546.9%3.4 pCi/L
Stephenson County26 mi51957.2%4.8 pCi/L
McHenry County36 mi6,47435.1%2.9 pCi/L
DeKalb County37 mi1,70741.1%3.3 pCi/L
Lee County41 mi21943.8%3.3 pCi/L
Carroll County44 mi21062.9%5.5 pCi/L

Nearby

Other radon professionals in Rockford

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