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PRINCIPALS & ASSOCIATES |
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“Thanks a million for your rapid response and amazing ability to succinctly summarize my rambling phone conversations.”
— Leading Northwest environmental attorney
“The info was exactly what I needed. Thanks again for the priority treatment. I greatly appreciate your insights and ability to provide the right level of detail for the problem.”
— Leading Puget Sound environmental attorney
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Principals & Associates
Janet Knox, LG, Principal Environmental Geochemist
M.S. Geochemistry, 1982, University of Auckland
B.S. Geochemistry, 1980, Yale University
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Janet has over 22 years of experience in the investigation and remediation of soil, sediment, surface water, and groundwater. She has crafted sampling and analysis programs to assess the types, sources, and receptors of contamination, and she has occasionally served as an expert witness in complex environmental litigation. Her innovative strategies reflect a commitment to keep up with the changing world of environmental cleanup and its many regulations. An active participant in the MTCA Policy Advisory Subcommittees, Janet helped make MTCA more scientifically defensible and practical.
Charles Ellingson, LHG, CGWP, Principal Hydrogeologist
M.S. Hydrology, 1980, University of Arizona
B.S. Geology/Geophysics, 1978, University of Hawaii
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Mr. Ellingson is a co-founder and principal hydrogeologist of Pacific Groundwater Group, bringing the firm nearly three decades of experience in groundwater impact predictions, aquifer protection, contaminant hydrogeology, basin hydrology, and water supply development. His educational background in groundwater hydraulics complements his experience exploring, testing, and modeling a wide variety of groundwater regimes: single- and multi-aquifer systems, unsaturated soils, and shallow groundwater influences on stormwater and wetlands. He has directed groundwater development projects that have involved evaluating regional aquifers, siting and designing wells and well fields, and analyzing impacts to surface water. Mr. Ellingson’s other areas of expertise include groundwater management, contaminant assessment, design of remedial measures, and modeling the hydrologic effects of land use changes. He was an invited participant in the State’s technical advisory committee on hydraulic continuity and co-authored Report of the Technical Advisory Committee on the Capture of Surface Water by Wells, produced for Ecology in 1998. Mr. Ellingson recently managed a multi-disciplinary team to independently assess hydrologic effects from construction of the SeaTac third runway, evaluating potential impacts to groundwater, surface water, and wetlands from an open-pit mining proposal in Thurston County, and leading the groundwater efforts necessary to develop a basin plan focused on groundwater flood mitigation for Salmon Creek in Thurston County.
Daniel Matlock, Principal Hydrogeologist
M.S. Hydrogeology, 1981, University of Arizona
B.S. Geology (Mathematics), 1977, University of Oregon
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Dan has 24 years of experience in many areas related to managing and developing groundwater supplies. His specialties include evaluating and testing regional aquifers, developing plans for wellhead and watershed protection, designing data management systems, assessing water quality, crafting groundwater management strategies, and designing monitoring systems. His extensive background in well hydraulics is an asset to the many water purveyors for whom he has developed well fields, conducted artificial recharge studies, and evaluated surface water and groundwater interactions.
Stephen Swope, LHG, Principal Hydrogeologist
M.S. Hydrology, 1990, University of Idaho
B.S. Geology, 1985, Claremont McKenna College
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For over 15 years, Steve has conducted hydrogeologic and environmental site assessments, developed water supplies, and managed multidisciplinary WRIA basin assessments — regional-scale studies of water use and availability, habitat, and water rights. He has also supervised Superfund investigations on the nature, extent, fate, and transport of contaminants. One of Steve’s specialties is developing data management systems for water resources information and statistical analysis plans for landfill monitoring. His experience also extends to the areas of groundwater modeling, wellhead protection, and expert witness / litigation support.
Peter Schwartzman, Principal Hydrogeologist
M.S. Hydrology (Hydrogeology), 1989, University of Arizona
B.A. Geology, 1984, University of Pennsylvania
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Peter’s 15 years of hydrogeologic consulting experience has focused on groundwater resource development, site assessment, numerical flow modeling, and contaminant hydrology. His diverse professional responsibilities have included defining complex groundwater flow regimes, analyzing hydraulic data, and assessing interactions between streams, aquifers, and saltwater. He has developed a variety of regional and local groundwater flow models, applying them a wide variety of groundwater management and contaminant transport problems. Peter also has extensive field and an active involvement in international water supply development.
Linton Wildrick, Associate Hydrogeologist
M.S. Geological Sciences, 1976, University of Washington
B.S. Geology, 1969, Pennsylvania State University
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A 22-year veteran of Ecology’s Water Resources Division, Linton brings us his vast experience in hydrogeologic investigations. He has been the primary investigator in many regional studies and has published over 40 papers. He has also lead basin-wide watershed assessments throughout Washington State in a variety of hydrogeologic environments. A special area of Linton’s expertise is the analysis of interactions between surface water and groundwater. While at Ecology, he advised managers and permit writers on hydrologic aspects of water-rights policy and served as the lead scientist on the Technical Committee for Capture of Surface Water by Wells. He has extensive experience as an expert witness in water rights cases.