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Who We Are
Our Team
Our Team
Leadership
John Hanzas
President / Agrochemical Fate & Exposure Service Leader / Senior Geoscientist
Michael Winchell
Vice President / Environmental Systems Modeling Service Leader / Senior Environmental Modeler
Daniel Voisin
Environmental Assessment and Remediation Service Leader/ Senior Geologist
Dave Braun
Senior Water Resources Scientist
Kim Watson, RQAP-GLP
Quality Assurance Manager / Health & Safety Officer
Barbara Patterson
Geospatial and Data Solutions Service Lead / Senior Database Developer
Staff
David Abrahamson, PE, PMP
Senior Engineer / Project Manager
Gabe Bolin, PE
Senior Water Resources Engineer
Nicholas Floersch
Senior Web / GIS Application Specialist
Alan Hammersmith
Senior GIS Web Applications Developer
David Healy
Senior GIS Applications Specialist / Senior Consultant
Gaylen Jones, Ph.D.
Senior Scientist
Amy Macrellis
Senior Water Quality Specialist
Hendrik Rathjens, Ph.D.
Senior Environmental Modeler
Leif Richardson, Ph.D.
Senior Ecologist
Brent Toth
Senior Scientist
Meghan Arpino
Staff Scientist
Seren Bagcilar
Staff Scientist
Roger Branon Rodriguez
Web Application Designer
Ben Brayden
Project Scientist
Daniel Brese
Staff Scientist
Sebastián Castro-Tanzi, Ph.D.
Environmental Modeler
Dan Curran
Staff Geoscientist
Brian Diezel, PE
Environmental Engineer
Jonnie Dunne
Environmental Modeler
Christine Gingras, PE
Water Resources Engineer
Hisashi "Hisa" Kominami
Staff Scientist
Laura Kujawa
Marketing Assistant
John Landis
Director of Computer Operations
Serena Matt
Water Resources Scientist
Katrina Mattice, PE
Environmental Engineer
Branden Martin, EI
Project Engineer
Samantha Newton
Accountant
Joanne Perry
Human Resources / Office Administrator
Aaron Rice
Staff Scientist
Warren Rich
Staff GIS Specialist
Carleigh Rixon
Marketing Manager
Lee Rosberg
Project Geologist
Kate Salvatori
Financial Controller
Laura Sisco
Staff Scientist
Travis Sizemore
Staff Scientist
Jody Stryker, Ph.D.
Environmental Modeler
