Certified radon testers & mitigatorsSouth Dakota — testing — verified 29 Aug 2026

§ 4.1 — Belle Fourche, SD

Certified radon testing in Belle Fourche, SD

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

Last verified August 29, 2026. Methodology NRPP. NRSB.

Certified radon testingCertified radon mitigation

  1. John Adams

    Cardinal Complete Home Inspections Llc

    current NRPP № 111926

    testing

    (605) 210-3982August 29, 2026cite ↗
Fig. 4 — Belle Fourche, SD, 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 South Dakota

South Dakota pages here use current NRPP or NRSB certifications. City pages use the city printed on that record, not a ZIP-radius search. A national certification is not a South Dakota license. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.