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 -
Judi L. Durda
Vice President, Corporate Secretary, Principal Toxicologist -
David Livermore, R.G., L.H.G.
Principal Hydrogeologist -
William Locke, P.E.
Principal Hydrologist -
Randi Wexler
Principal, Regulatory Affairs -
Damian V. Preziosi
Principal Environmental Scientist -
James Lape
Principal Environmental Scientist, Human Health Risk Assessor -
Michael V. Ruby
Principal Scientist -
Steven O. Helgen
Principal Geochemist -
William Cutler, Ph.D., P.G.
Principal -
Reid M. Carscadden, P.E.
Principal Engineer -
Edward P. Conti, C.E.G., C.H.G., P.G.
Principal Geologist
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 -
Laura Jones
Senior Managing Scientist -
Todd Martin, P.E.
Senior Managing Engineer, Hydrogeochemist -
Jennifer Sampson
Senior Managing Ecologist -
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., P.E.
Senior Managing Hydrologist -
Ellen S. Ebert
Senior Managing Scientist -
Ramesh Venkatakrishnan, Ph.D., P.G.
Senior Science Advisor
Erik R. Strandhagen, GISP
Senior Scientist
Erik Strandhagen is a certified professional in geographic information systems (GIS) with more than 10 years of professional experience conducting GIS analysis and managing environmental data. Mr. Strandhagen specializes in advanced gridding analysis and integrated calculations of chemical body mass and volume for groundwater and geologic 3 dimensional subsurface site models. His subsurface models have been peer-reviewed by EPA and vetted by other regulatory agencies. He also manages numerous GIS projects as well as GPS data collection and processing.
Mr. Strandhagen holds a master of science degree in geography with an emphasis in hydrology, geomorphology and advanced temporal and spatial data analysis. His skills include GIS design, spatial analysis, computer programming, data management, remote sensing image interpretation, hydrologic modeling, geostatistics, 3 dimensional modeling, cartographic design, and data visualization. Prior to entering consulting, he performed GIS work for National Science Foundation Grant Research, the Oregon Department of Transportation, and Lane County, Oregon. Mr. Strandhagen is the recipient of two national awards in recognition of his innovative GIS environmental analyses conducted during his graduate and undergraduate years. Mr. Strandhagen is also experienced in print and digital cartographic atlas publications.
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