Executive Team
Managing Principals
Principals & Senior Advisors
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R. Jeffrey Davis, P.E., CGWP, CWRE
Principal, Water Resources
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Cameron Johnson
Principal, Permitting and Planning
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John Samuelian, Ph.D.
Senior Science Advisor
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Jennifer L. Wollenberg, Ph.D.
Principal, Sustainability
Corporate Directors
Technical Staff
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Jerritt Collord
Consultant
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Jarrod D. Gasper
Senior Consultant
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John R. Griffin
Senior Consultant
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Brent Jacobson
Associate Engineer
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Matthew Jamieson
Project Scientist
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Megan Jones
Project Scientist
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Josh Kidder
Senior Consultant
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Jim Knape
Senior Data Manager
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Jordan Kozal, Ph.D.
Senior Consultant
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James L’Esperance, P.E.
Consultant
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Joe Lohmann, E.I.T.
Assistant Engineer
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Jen Lyndall, CERP
Senior Consultant
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Jeffrey E. Marsh, P.E.
Senior Consultant
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Jennifer Pettis Schallert
Senior Consultant
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Jessie Powell, E.I.T.
Associate Engineer
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John Quigley
Associate Engineer
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Julia Richardson, P.E.
Engineer
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Julia Ryan, LSRP
Consultant
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Jedidiah Sirk, P.E.
Senior Consultant
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Jane L. Sund, P.E.
Senior Consultant