Certified radon testers & mitigatorsColorado — testing — verified 29 Aug 2026

§ 4.1 — Palmer Lake, CO

Certified radon testing in Palmer Lake, CO

1 current listing from the official file. Verify the credential number before you hire.

Last verified August 29, 2026. Methodology CO DORA.

Certified radon testingCertified radon mitigation

  1. Zwahlen, John, M

    current CO DORA № RME-434

    testing

    August 29, 2026cite ↗
Fig. 4 — Palmer Lake, CO, approximate. Pin is the city on the official file, not a street address.

Appendix A — Before you hire

  1. Who holds the credential, and can they show the same number that appears on this page?
  2. What test method or mitigation system will they use for this building?
  3. How will they document results or the finished system?

§ 4.3

Nearby places in Colorado

Colorado DORA licenses radon measurement (RME) and mitigation (RMT) professionals. The people below appear as Active on the official occupational license file we imported. Read the methodology. Credential status can change.