Certified radon testers & mitigatorsEntry — verified 29 Aug 2026

Entry № 107257

Daniel Gietzen

Gray Ghost Construction

Last verified August 29, 2026. Methodology

Credential number
107257
Credential body
NRPP
Status
current Certified. Current in the source file.
Services
mitigation
City
Bismarck
County
Not on the source file
State
North Dakota
Phone
(701) 471-4544
Source
https://nrpp.info/listings/bl-9370.html
Fig. 5 — Bismarck, ND, approximate. Pin is the city on the official file, not a street address.

§ 5.1

Places on the source file

Claim or update this listing. A claim cannot add someone who is missing from the official file.