Entry № RNI2008204

Martens, Chad

Quality Testing & Engineering, Inc

Last verified August 29, 2026. Methodology

Compare every credential-verified provider: Radon testing in O Fallon, IL.

Credential number: RNI2008204
Credential body: IL IEMA
Status: current Licensed. Current in the source file.
Services: testing
City: O Fallon
County: Not on the source file
State: Illinois
Phone: 618-632-9900
Source: https://public.iema.state.il.us/Radon/Home/LicenseIndex

Fig. 5 — Each 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

testing in O Fallon, IL

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