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Vice President/Principal Engineer

Mr. Mackey provides extensive experience in solid waste, hazardous waste, and leachate management issues. His past and ongoing participation in local, state, and federal research projects and technical societies has allowed Mr. Mackey to continuously integrate the latest technology into waste containment design, site assessment, and technology review projects. Through his varied background and active role in technical societies, Mr. Mackey has been recognized by his peers as a leader and internationally known expert in the field of waste containment design and geosynthetic materials.

He has 35+ years of professional experience including biological and chemical degradation of waste materials, landfill bottom liner design and construction, landfill closures, groundwater monitoring, various waste management structures, and permitting of waste management facilities. His assistance has been sought for specific projects, task groups, and committees because of his varied experience and in-depth technical understanding of landfill liner and leachate collection systems. Projects managed by Mr. Mackey include the development of National Solid Waste Regulations and Standards for the Kingdom of Thailand, preliminary assessment and remediation designs of solid waste disposal sites in Thailand, and a forensic assessment of liner and leachate collection system for the Delaware Solid Waste Authority’s Central Disposal Facility.

Mr. Mackey holds a B.S. in Civil Engineering from the University of Evansville and a M.S. in Environmental Engineering from the University of Cincinnati. As previously noted, Mr. Mackey is very active in many professional and technical organizations including: Florida Engineering Society (FES); ASTM D-35 Committee Chairman on Geotextiles, Geomembranes, and Related Products; International Standards Organization, TC221 on Geosynthetics; Geotechnical Fabrics Report, International Technical Advisory Committee; Solid Waste Association of North America; American Society of Civil Engineers (ASCE); and National Society of Professional Engineers. He has taken a leadership role in many of these organizations, which has culminated in his receiving the American Society of Testing and Materials (ASTM), “Award of Merit” (2003), ASTM’s highest award given to an individual for exceptional leadership and service to ASTM D35 Committee on Geosynthetics. Mr. Mackey has received the Fellow designation in ASTM, ASCE and FES, and is a Board Certified Environmental Engineering – Solid Waste from the American Academy of Environmental Engineers. He was awarded FES’s 2010 Award for Outstanding Technical Achievement.

Mr. Mackey has promoted education and advancement of waste containment technology by authoring 41 published papers/presentations in addition to providing numerous presentations to interested organizations. He has been a symposium chairman, session leader, and technical advisor for numerous conferences. He was formerly co-lecturer for ASCE’s 2-Day Continuing Education Course, “Design of Waste Containment Liner and Final Closure Systems.”

Mr. Mackey has been active in the community, volunteering for various organizations, including: University of Central Florida, Curriculum Advisory Board Member for Civil and Environmental Engineering Departments; Remediation Advisory Board Member, Orlando Naval Training Facility; Current, Winter Park Toastmasters and Current/Past Volunteer – Disney Marathon, Public Radio/TV Fund Drives, Orlando Science Center; Catholic Church; and Seminole/Citrus Sailfest (once the largest inland sailboat regatta).