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Preferred Home Inspection Services

Marion, Iowa. Testing and mitigation

2 Iowa state licenses verified against the Iowa Department of Health and Human Services, Bureau of Radiological Health list, last checked November 3, 2026.

Call Preferred Home Inspection Services at (563) 564-1915Visit website of Preferred Home Inspection Services (opens in a new tab)

Credentials

Licenses and certifications

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

Iowa state licenses (2)

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.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Mitigation licenseNo. RNMIT09040Credentialed Radon Mitigation SpecialistVerified November 3, 2026Verify RNMIT09040 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab)
Testing licenseNo. RNTST09002Certified Radon Measurement SpecialistVerified November 3, 2026Verify RNTST09002 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab)

Licensing in Iowa

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

Iowa HHS Radon Program, Iowa Department of Health and Human Services, (515) 281-4928.

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

Local radon figures

Radon in Marion

Marion lies in Linn County, where 39.7% of 9,395 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 18.8 points below Iowa pooled (58.5%), 91st of 99 Iowa counties with 30 or more tests.

Radon test figures for the county Marion lies in
CountyTestsAt or above 4 pCi/LMedianIowa, pooledRank in the stateEPA zone
Linn County9,39539.7%3.0 pCi/L58.5%91 of 99Zone 1

Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Marion

Around Linn County, where Marion lies, the nearest Iowa counties with a CDC figure for 2008 to 2017, laboratory run from 41.6% to 62.1% of tests at or above 4 pCi/L; the closest, Benton County, is 24 miles away at 62.1%.

The nearest Iowa counties to Linn County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Benton County24 mi69662.1%5.6 pCi/L
Jones County24 mi55559.3%5.1 pCi/L
Johnson County28 mi7,32141.6%3.2 pCi/L
Delaware County30 mi52050.0%4.0 pCi/L
Buchanan County30 mi56451.2%4.1 pCi/L
Cedar County32 mi76560.4%5.0 pCi/L

Nearby

Radon professionals nearest Marion

More radon professionals in MarionMore radon professionals in Iowa

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