Entry № 115082

Matthew Sewell

Source & Summit Radon

Last verified September 13, 2026. Methodology

Credential number
115082
Credential body
NRPP
Status
current Certified. Current in the source file.
Services
mitigation
City
Spokane
County
Not on the source file
State
Washington
Phone
(406) 559-0091
Source
https://nrpp.info/listings/bl-20830.html
Fig. 5Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses.

§ 5.1

Places on the source file

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