Certified radon testers & mitigatorsEntry — verified 29 Aug 2026

Entry № 115710

Nathaniel W Alper

Az-ri Consultants

Last verified August 29, 2026. Methodology

Credential number
115710
Credential body
NRPP
Status
current Certified. Current in the source file.
Services
testing
City
Baltimore
County
Not on the source file
State
Maryland
Phone
(443) 600-3545
Source
https://nrpp.info/listings/bl-21948.html
Fig. 5 — Baltimore, MD, 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.