GSI Environmental Inc.
Dr. Johnson is an environmental engineer with GSI Environmental Inc. who works on site investigation and remediation projects, water treatment, and management of emerging contaminants, including PFAS. Dr. Johnson earned his Ph.D. in Civil Engineering from the University of California, Los Angeles where he researched the application of treatment train technologies leveraging biodegradation and/or adsorption to emerging contaminants including 1,4-dioxane and PFAS.