Mr. Plybon is a professional engineer with experience in site investigation, remediation, and mitigation for a variety of environmental contaminants including PFAS, VOCs, petroleum hydrocarbons, pesticides, PCBs, metals, and radon. His experience includes design, operation, and monitoring of vapor intrusion mitigation and dual-phase extraction systems, design of landfill containment systems, preparation of construction plans and specifications, construction management, hazardous waste characterization and disposal, risk assessments, and project management. He has experience providing high-level programmatic support for his clients including the facilitation of meetings and consensus with and preparing complex reporting for environmental regulatory agencies like the New York State Department of Environmental Conservation, the California Department of Toxic Substances Control, the United States Environmental Protection Agency, and the San Francisco Bay Area Regional Water Quality Control Board. Keeping apprised of changing regulatory needs, he helps his clients stay in compliance and facilitates permits as needed. Mr. Plybon has performed environmental due diligence for several private commercial and real estate development clients and fortune 500 companies, which has included the preparation of Phase I reports and implementation of Phase II sampling investigations. Mr. Plybon holds Professional Engineering licenses in CA, NY, NJ, MA, CT, and NC.