Mr. Matteson has worked exclusively in the civil/environmental engineering field since the mid 1980s. He has conducted, or has managed numerous environmental, landfill, groundwater, water resources and geotechnical engineering projects. He has managed remedial investigations/feasibility studies, and as conducted potential responsible party (PRP) oversight at National Priority List sites for the U.S. Environmental Protection Agency. In addition, Mr. Matteson has performed storage tank projects funded by the Virginia Petroleum Storage Tank Fund (VPSTF), as well as produced Spill Prevention, Control and Countermeasure (SPCC) Plans and Oil Discharge Contingency (ODC) Plans. Other environmental projects include soil, groundwater and surface water characterizations, Brownfields and landfill reuse. His landfill gas experience includes active and passive extraction design and installation, migration control and landfill gas to energy feasibility studies and due diligence. His solid waste experience includes Subtitle D landfill permitting, design, construction and certification, closure, as well as landfill gas control and environmental compliance program management. His groundwater engineering experience includes monitoring and contamination assessments at solid waste landfills and National Priority List (Superfund) sites. His geotechnical experience includes subsurface investigations as well as consolidation and slope stability analyses.