Entry № 8641

Johnson, Donna

A1 House Prep, Llc

Last verified August 29, 2026. Methodology

Credential number: 8641
Credential body: PA DEP
Status: current Certified. Current in the source file.
Services: testing
City: Harleysville
County: Montgomery
State: Pennsylvania
Phone: (215) 853-8226
Source: https://www.pa.gov/agencies/dep/programs-and-services/radiation-protection/radon-division/radon-services-directory

Fig. 5 — Montgomery County, PA, approximate. Pin is the county 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.