Staff
Company Officers and Principals
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Lucinda Jacobs, Ph.D.
President, Principal Aquatic Scientist -
Betsy Day
Vice President, Principal Sediment Scientist -
Larry F. Marx
Vice President of Corporate Development -
Russell E. Keenan, Ph.D.
Vice President, Principal Toxicologist -
Marc Lorenzen, Ph.D.
Principal Business Advisor -
Judi L. Durda
Corporate Secretary, Principal Toxicologist -
David Livermore, R.G., L.H.G.
Principal Hydrogeologist -
William Locke, P.E.
Principal Hydrologist -
James Lape
Principal Environmental Scientist, Human Health Risk Assessor -
Michael V. Ruby
Principal Scientist -
Steven O. Helgen
Principal Geochemist -
William Cutler, P.G.
Principal -
Reid M. Carscadden, P.E.
Principal Engineer
Senior Managing Scientists and Engineers
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Robert Pastorok, Ph.D.
Senior Science Advisor, Ecologist -
Scott Becker, Ph.D.
Senior Managing Ecotoxicologist -
R. Dreas Nielsen
Senior Managing Marine Scientist, Quantitative Analyst -
Les Williams, Ph.D.
Senior Science Advisor, Aquatic Ecologist -
Todd Martin, P.E.
Senior Managing Engineer, Hydrogeochemist -
Jennifer Sampson
Senior Managing Ecologist -
Randi Wexler
Senior Managing Scientist, Regulatory Affairs -
Damian V. Preziosi
Senior Managing Environmental Scientist -
Andrew Nicholson, Ph.D.
Senior Managing Scientist -
Gene Revelas
Senior Managing Scientist -
Kenneth E. Kolm, Ph.D., P.G., P.Hg.
Senior Science Advisor -
Patrick O. Gwinn
Senior Managing Scientist -
John Samuelian, Ph.D.
Senior Managing Scientist -
Marcia Greenblatt, Ph.D.
Senior Managing Engineer
Michael J. Martin, P.E.
Senior Civil/Environmental Engineer
Mr. Mike Martin is a registered professional engineer in Kansas, Oregon, and Washington with 15 years of practical experience in civil and environmental engineering. Mr. Martin specializes in soil and groundwater remedial alternatives analysis, cost estimation, and design and implementation of remedial actions, from pilot- to full-scale systems. He has substantial experience developing cost-effective alternatives for site remediation, including CERCLA feasibility studies, RCRA corrective actions, state-led projects, and litigation and property transfer projects.
In addition to his specialization in hazardous waste sites, Mr. Martin has a wide range of engineering capabilities. His background includes litigation support and insurance recovery, specifically reviewing engineer-procure-construct contracts, managing design-build contracts, and conducting chemical plant process analyses. He has been involved with the design and construction of municipal water treatment plants, conventional wastewater treatment plants, and potable water transmission pipelines.
Mr. Martin also has supervised the construction of remedial actions, solid waste landfills, and wastewater treatment plants.
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