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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
Senior Geologist / Director of Environmental Assessment and Remediation Services
Dave Braun
Water Resources Management Service Leader / Senior Water Resources Scientist
Les Carver
Foundation Team Leader, Senior Hydrogeologist
Barbara Patterson
Geospatial and Data Solutions Service Lead / Senior Database Developer
Staff
David Abrahamson, PE, PMP
Senior Environmental Engineer
Gabe Bolin, PE
Senior Water Resources Engineer
Ben Brayden
Project Scientist / Director of AgChem Business Development
Nicholas Floersch
Senior Web / GIS Application Specialist
Alan Hammersmith
Senior GIS Web Applications Developer
Gaylen Jones, Ph.D.
Senior Scientist
Peter Lazorchak, PE, LEED AP
Senior Water Resources Engineer
Amy Macrellis
Senior Water Quality Specialist
Jacob Mitchell
Senior Agricultural Engineer
Hendrik Rathjens, Ph.D.
Senior Environmental Modeler
Leif Richardson, Ph.D.
Senior Ecologist
Lee Rosberg
Project Geologist
Jody Stryker, Ph.D.
Senior Environmental Modeler
Brent Toth
Senior Scientist / Director of AgChem Operations
Kim Watson, RQAP-GLP
Quality Assurance Manager / Health & Safety Officer
Meghan Arpino
Project Hydrologist
Daniel Brese
Staff Scientist
Sebastián Castro-Tanzi, Ph.D.
Environmental Modeler
Heather Cox
Staff GIS Ecologist
Carleigh Cricchi
Marketing Director
Jennifer Cypher
Quality Assurance Manager
Dan Curran
Staff Geologist
Jonnie Dunne
Environmental Modeler
Christine Gingras, PE
Water Resources Engineer
Evan Johnson
Marketing Associate/Content Manager
Hisashi "Hisa" Kominami
Staff Scientist
John Landis
Director of Computer Operations
Rachel Lightfoot
Project Agronomist
Katrina Mattice, PE
Project Engineer
Branden Martin, PE
Water Resources Engineer
Bettina Miguez
Environmental Modeler
Rebecca Mitchell
Staff Scientist
Samantha Newton
Accountant
Joanne Perry
Human Resources / Office Administrator
Marco Propato, Ph.D.
Environmental Modeler
Laura Rajnak
Staff Scientist
Aaron Rice
Staff Scientist
Sarah Rathay
Staff Hydrogeologist
Warren Rich
Project GIS Specialist
Kate Salvatori
Financial Controller
Laura Sisco
Staff Scientist/Technical Writer
Matthew Schley, PE
Water Resources Engineer
Michael Smith
Senior Hydrologist
Katie Torchia
Accounting/Administrative Assistant
