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
Betsy Day
Vice President, Principal Sediment Scientist
Ms. Betsy Day (previously Striplin), a principal scientist at Integral, is a recognized leader of environmental studies and sediment cleanup investigations in marine, riverine, and estuarine environments in the Pacific Northwest. Her professional strengths are in strategic management and technical oversight of complex contaminated sediment and upland sites in urban environments. Ms. Day routinely provides senior-level consultation for sediment and water quality investigations, cleanup, and allocation projects on behalf of private clients and regulatory agencies. During her 25 years of experience, she has directed a variety of highly visible cleanup investigations and sediment assessment activities, including Portland Harbor (Oregon); Slip 4, Lower Duwamish Waterway (Seattle, Washington); and Hylebos Waterway (Tacoma, Washington). She has also provided expert testimony and conducted dredged material characterizations for private clients and directed the Washington State Department of Natural Resource’s dredging program in the early 1990s. Ms. Day has provided input to a variety of other contaminated sediment and dredged material characterization projects in Oregon, Washington, and Alaska and is a member of the City of Seattle in-house strategy team for the Lower Duwamish Waterway CERCLA site.
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