Specialties
Solid Waste Planning and Feasibility Studies; Waste Management and Diversion; Landfill Project Development; Lifecycle Financial Analysis; Closure and Post-Closure Care
Practice Areas
Environmental Management; Geotechnical and Geoenvironmental Engineering; Waste Management
Education
PhD, Geotechnical Engineering, Arizona State University, 2016; MS, Geomechanics, Stanford University, 2012; BS, Civil and Environmental Engineering, Bucknell University, 2011; BA, Economics, Bucknell University, 2011
Registration
Maryland Professional Engineer, PE No. 57689; Guam Professional Engineer, PE No. CE2197
Client Service
Sean’s solid waste experience extends to more than 20 states and provinces in North America, Latin America, the Caribbean, Africa, Australia, and the South Pacific. He has worked with dozens of clients in the public- and private-sector to develop projects over their full life cycle. Sean has significant experience in master planning, financial modeling and options analysis; waste diversion and recycling systems planning; waste characterization; design and construction of solid waste containment facilities, including leachate and landfill gas management systems; closure systems design; long-term performance and post-closure care of landfills; and redevelopment of closed solid waste sites and brownfields.
A practitioner within Geosyntec’s Solid Waste Advisory group, Sean provides strategic services related to solid waste planning, feasibility assessments, and options studies. Sean’s dual background in engineering and economics allows him to evaluate solid waste projects from both a technical and financial perspective. His experience in permitting, environmental compliance, and post-closure care helps him provide key insights to clients and make informed lifecycle solid waste management decisions. His experience includes solid waste management and recycling master plans; feasibility studies and conceptual plans for solid waste management facilities; operational reviews and advising on best practices; market studies and cash-flow analyses; options evaluation for increasing waste diversion, including waste transfer and sorting, materials recovery, recycling, and composting of organics; and environmental justice and social equity considerations for solid waste.
To contribute to the practice, Sean has coauthored more than 20 technical publications and conducted dozens of invited presentations. He continues to collaborate with academic partners to advance state-of-the-art research related to solid waste management.
Contact Sean at SOdonnell@geosyntec.com.
