KELLCO Services, Inc.
Licensed Professional: Derrik Quach, Bonnie Lee Kellogg
At a Glance
About KELLCO Services, Inc.
Derrik Quach provides radon services in Hayward, CA as a radon testing specialist. Holds NRPP Radon Measurement Professional certification. Services include radon measurement, radon mitigation, radon testing. Operating under KELLCO Services, Inc..
Credentials & Verification
NRPP Radon Measurement Professional License
Licensed for professional radon testing and measurement
Issuing Body
National Radon Proficiency Program (NRPP)
License Type
Professional License
Status
Current through January 2028Verified against NRPP, RADON_SITE public databases · Last checked April 2026 · Report incorrect information
Contact & Location
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