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TRC Environmental Corporation

Windsor, Connecticut. Testing and laboratory

1 Florida state license not on the latest list read.

1 Kansas state license verified against the Kansas Department of Health and Environment, Kansas Radon Program list, last checked October 4, 2026.

1 Nebraska state license verified against the Nebraska Department of Health and Human Services, Radon Program list, last checked November 3, 2026.

1 Pennsylvania state license verified against the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection list, last checked November 3, 2026.

1 West Virginia state license verified against the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division list, last checked November 3, 2026.

Credentials

Licenses and certifications

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

These licenses are from Florida and Kansas and Nebraska and Pennsylvania and West Virginia, and the business address is in Connecticut.

Radon411 has no Connecticut record for this business. Before hiring it for a home in Connecticut, check what Connecticut asks for. What Connecticut requires

Florida state license (1)

Issued by the Florida Department of Health, Radon Program, not by NRPP or NRSB.

LicenseNumberStatus on the listExpiresVerifiedCheck with the issuer
Testing licenseNo. Not publishedNot on the state list read 2026-11-03Expires October 27, 2026Expired October 27, 2026Verify with the Florida Department of Health, Radon Program (opens in a new tab)

Kansas state license (1)

Issued by the Kansas Department of Health and Environment, Kansas Radon Program, not by NRPP or NRSB. Radon411 last checked the list on October 4, 2026. No expiry date is on the record.

LicenseNumberStatus on the listVerifiedCheck with the issuer
Laboratory licenseNo. KS-LB-0018Kansas certified radon laboratoryVerified October 4, 2026Verify KS-LB-0018 with the Kansas Department of Health and Environment, Kansas Radon Program (opens in a new tab)

Nebraska state license (1)

Issued by the Nebraska Department of Health and Human Services, Radon Program, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026.

LicenseNumberStatus on the listExpiresVerifiedCheck with the issuer
Laboratory licenseNo. RMB-1135Licensed Radon Measurement Business (Laboratory)Expires March 31, 2027Verified November 3, 2026Verify RMB-1135 with the Nebraska Department of Health and Human Services, Radon Program (opens in a new tab)

Pennsylvania state license (1)

Issued by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, 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
Laboratory licenseNo. 2821DEP certified radon laboratoryVerified November 3, 2026Verify 2821 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab)

West Virginia state license (1)

Issued by the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026.

LicenseNumberStatus on the listExpiresVerifiedCheck with the issuer
Laboratory licenseNo. RL000215West Virginia Radon LabExpires March 31, 2027Verified November 3, 2026Verify RL000215 with the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division (opens in a new tab)

Licensing in Connecticut

Connecticut's radon program says the state does not license or certify radon professionals.

Radon Program, Department of Public Health, (860) 509-7300.

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

Radon figures

Radon in Connecticut

CDC publishes radon testing by county, and Windsor is not a place its county figures resolve to, so the figures here are Connecticut's: pooled across 8 counties, 26.7% of the 25,634 radon tests reported to CDC, 2007 to 2016, laboratory, were at or above 4 pCi/L; 8 counties have 30 or more tests for that period.

Connecticut's highest and lowest counties by share of tests at or above 4 pCi/L, 2007 to 2016, laboratory
CountyTestsAt or above 4 pCi/L
Windham County1,30734.1%
Middlesex County1,60531.3%
Litchfield County1,60529.3%
Hartford County5,09921.1%
New Haven County5,01626.1%
Tolland County1,39926.4%

Connecticut radon levels by county

Nearby

Other radon professionals in Windsor and across Connecticut

More radon professionals in WindsorMore radon professionals in Connecticut

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