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Guardian Inspection Services, LLC

Pella, Iowa. Testing

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 Guardian Inspection Services, LLC at (641) 621-1440Visit website of Guardian Inspection Services, LLC (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
Testing licenseNo. RNTST09020Certified Radon Measurement SpecialistVerified November 3, 2026Verify RNTST09020 with the Iowa Department of Health and Human Services, Bureau of Radiological Health (opens in a new tab)
Testing licenseNo. RNTST10231Certified Radon Measurement SpecialistVerified November 3, 2026Verify RNTST10231 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 Pella

Pella lies partly in Mahaska County, where 61.1% of 288 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 2.6 points above Iowa pooled (58.5%), 60th of 99 Iowa counties with 30 or more tests.

Radon test figures for the counties Pella lies in
CountyTestsAt or above 4 pCi/LMedianIowa, pooledRank in the stateEPA zone
Mahaska County28861.1%5.2 pCi/L58.5%60 of 99Zone 1
Marion County1,15167.3%6.0 pCi/L58.5%42 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 Pella

Around Mahaska County, one of the counties Pella lies in, the nearest Iowa counties with a CDC figure for 2008 to 2017, laboratory run from 33.9% to 73.3% of tests at or above 4 pCi/L; the closest, Keokuk County, is 24 miles away at 60.3%.

The nearest Iowa counties to Mahaska County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Keokuk County24 mi21460.3%5.2 pCi/L
Monroe County24 mi5933.9%2.9 pCi/L
Wapello County24 mi28735.9%2.7 pCi/L
Poweshiek County25 mi41970.6%7.2 pCi/L
Jasper County32 mi74673.3%8.2 pCi/L
Iowa County38 mi51959.2%5.1 pCi/L

Nearby

Radon professionals nearest Pella

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