Listed for: Mitigation
Verified:Illinois state license
ProfessionalsBusiness profile
Geneseo, Illinois. Testing
1 Illinois state license verified against the Illinois Emergency Management Agency (IEMA) list, last checked November 11, 2026.
1 Iowa state license verified against the Iowa Department of Health and Human Services, Bureau of Radiological Health list, last checked November 3, 2026.
Credentials
2 credentials are on file for this business, each exactly as the issuer's list printed it.
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.
| License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|
| Testing license | No. RNI2018228 | Measurement Professional | Verified November 11, 2026 | Verify RNI2018228 with the Illinois Emergency Management Agency (IEMA) (opens in a new tab) |
Issued by the Iowa Department of Health and Human Services, Bureau of Radiological Health, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026. No expiry date is on the record.
| License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|
| Testing license | No. RNTST10082 | Certified Radon Measurement Specialist | Verified November 3, 2026 | Verify RNTST10082 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab) |
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
Geneseo lies in Henry County, where 55.7% of 420 radon tests reported to CDC (2017) were at or above 4 pCi/L, 22.0 points above Illinois pooled (33.7%), 12th of 70 Illinois counties with 30 or more tests.
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.
Around Henry County, where Geneseo lies, the nearest Illinois counties with a CDC figure for 2017 run from 43.1% to 69.2% of tests at or above 4 pCi/L; the closest, Rock Island County, is 24 miles away at 46.5%.
Nearby
Listed for: Mitigation
Verified:Illinois state license
Listed for: Testing
Verified:Iowa state license
Listed for: Testing
Verified:Iowa state license+1 more: Illinois state license
Listed for: Mitigation
Verified:Illinois state license
Listed for: Testing
Verified:Illinois state license
Listed for: Testing
Verified:Illinois state license
More radon professionals in GeneseoMore radon professionals in Illinois
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