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

§ 4.1 — Blue Ash, OH

Certified radon testing in Blue Ash, OH

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. Barbara McGraw

    Bji Associates Llc

    current NRPP № 111572

    testing

    (513) 417-1884August 29, 2026cite ↗
Fig. 4 — Blue Ash, OH, 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 Ohio

Ohio 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 Ohio license. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.