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Optimal Home Inspections, LLC

Manteno, Illinois. Testing

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

Call Optimal Home Inspections, LLC at (773) 710-5891

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. RNI2019223Measurement ProfessionalVerified November 11, 2026Verify RNI2019223 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 Manteno

Manteno lies in Kankakee County, where 31.6% of 522 radon tests reported to CDC (2017) were at or above 4 pCi/L, 2.1 points below Illinois pooled (33.7%), 57th of 70 Illinois counties with 30 or more tests.

Radon test figures for the county Manteno lies in
CountyTestsAt or above 4 pCi/LMedianIllinois, pooledRank in the stateEPA zone
Kankakee County52231.6%2.7 pCi/L33.7%57 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 Manteno

Around Kankakee County, where Manteno lies, the nearest Illinois counties with a CDC figure for 2017 run from 25.0% to 61.7% of tests at or above 4 pCi/L; the closest, Will County, is 22 miles away at 40.0%.

The nearest Illinois counties to Kankakee County with 30 or more tests, 2017
CountyDistanceTestsAt or above 4 pCi/LMedian
Will County22 mi10,77640.0%3.1 pCi/L
Iroquois County27 mi3625.0%1.9 pCi/L
Grundy County31 mi39032.3%2.4 pCi/L
Livingston County40 mi34561.7%5.3 pCi/L
Ford County42 mi4257.1%4.0 pCi/L
Kendall County43 mi3,04535.0%2.8 pCi/L

Nearby

Radon professionals nearest Manteno

More radon professionals in MantenoMore radon professionals in Illinois

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