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public hearings, and responded to public comments from residents who were very concerned about the impact of designation. Reviewed a number of Environmental Impact Statements for planned major developments, including large hazardous and solid waste disposal facilities, mine reclamation, and water transfer. Matt served as a hydrogeologist with the RCRA Hazardous Waste program. Duties were as follows: • Supervised the hydrogeologic investigation of hazardous waste sites to determine compliance with Subtitle C requirements. • Reviewed and wrote "part B" permits for the disposal of hazardous waste. • Conducted RCRA Corrective Action investigations of waste sites and led inspections that formed the basis for significant enforcement actions that were developed in close coordination with U.S. EPA legal counsel. • Wrote contract specifications and supervised contractor's investigations of waste sites. With the National Park Service, Matt directed service -wide investigations of contaminant sources to prevent degradation of water quality, including the following tasks: • Applied pertinent laws and regulations including CERCLA, RCRA, NEPA, NRDA, and the Clean Water Act to control military, mining, and landfill contaminants. • Conducted watershed -scale investigations of contaminants at parks, including Yellowstone and Olympic National Park. • Identified high -levels of perchlorate in soil adjacent to a national park in New Mexico and advised park superintendent on appropriate response actions under CERCLA. • Served as a Park Service representative on the Interagency Perchlorate Steering Committee, a national workgroup. • Developed a program to conduct environmental compliance audits of all National Parks while serving on a national workgroup. • Co-authored two papers on the potential for water contamination from the operation of personal watercraft and snowmobiles, these papers serving as the basis for the development of nation- wide policy on the use of these vehicles in National Parks. • Contributed to the Federal Multi -Agency Source Water Agreement under the Clean Water Action Plan. Policy: Served senior management as the Senior Science Policy Advisor with the U.S. Environmental Protection Agency, Region 9. Activities included the following: • Advised the Regional Administrator and senior management on emerging issues such as the potential for the gasoline additive MTBE and ammonium perchlorate to contaminate drinking water supplies. • Shaped EPA's national response to these threats by serving on workgroups and by contributing to guidance, including the Office of Research and Development publication, Oxygenates in Water: Critical Information and Research Needs. • Improved the technical training of EPA's scientific and engineering staff. • Earned an EPA Bronze Medal for representing the region's 300 scientists and engineers in negotiations with the Administrator and senior management to better integrate scientific 4