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Local Radon Testing

Saint Charles, Illinois. Testing

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

Call Local Radon Testing at (630) 881-2430

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. RNI2019218Measurement ProfessionalVerified November 11, 2026Verify RNI2019218 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 Saint Charles

Saint Charles lies mostly in Kane County, where 36.6% of 8,682 radon tests reported to CDC (2017) were at or above 4 pCi/L, 2.9 points above Illinois pooled (33.7%), 47th of 70 Illinois counties with 30 or more tests.

Radon test figures for the counties Saint Charles lies in
CountyShare of Saint CharlesTestsAt or above 4 pCi/LMedianIllinois, pooledRank in the stateEPA zone
Kane County97.2%8,68236.6%2.8 pCi/L33.7%47 of 70Zone 1
DuPage County2.8%19,40133.7%2.7 pCi/L33.7%53 of 70Zone 2

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 Saint Charles

Around Kane County, one of the counties Saint Charles lies in, the nearest Illinois counties with a CDC figure for 2017 run from 19.4% to 46.9% of tests at or above 4 pCi/L; the closest, DeKalb County, is 18 miles away at 41.1%.

The nearest Illinois counties to Kane County with 30 or more tests, 2017
CountyDistanceTestsAt or above 4 pCi/LMedian
DeKalb County18 mi1,70741.1%3.3 pCi/L
Kendall County24 mi3,04535.0%2.8 pCi/L
McHenry County27 mi6,47435.1%2.9 pCi/L
Cook County32 mi26,93719.4%1.9 pCi/L
Boone County33 mi52546.9%3.4 pCi/L
Lake County34 mi13,05027.4%2.4 pCi/L

Nearby

Radon professionals nearest Saint Charles

More radon professionals in Saint CharlesMore radon professionals in Illinois

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