1st Defense Radon
Cottage Grove, MN
Listed for: TestingMitigation
Verified:Minnesota state license
ProfessionalsBusiness profile
Cedar, Minnesota. Testing
1 Minnesota state license verified against the Minnesota Department of Health list, last checked November 3, 2026.
Credentials
1 credential is on file for this business, exactly as the issuer's list printed it.
Issued by the Minnesota Department of 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. RMEA-00364 | Minnesota radon measurement license | Verified November 3, 2026 | Verify RMEA-00364 with the Minnesota Department of Health (opens in a new tab) |
Minnesota's radon program says the state licenses or certifies radon professionals.
MDH Indoor Air Unit, MN Dept. of Health, 651-201-4601.
What Minnesota requires, in its program’s own words, and how to check a credential
Radon figures
CDC publishes radon testing by county, and Cedar is not a place its county figures resolve to, so the figures here are Minnesota's: pooled across 87 counties, 43.4% of the 130,912 radon tests reported to CDC, 2008 to 2017, laboratory, were at or above 4 pCi/L; 85 counties have 30 or more tests for that period.
Nearby
Cottage Grove, MN
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Eden Prairie, MN
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Verified:Minnesota state license
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Harrisburg, PA
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