
ABOUT AESI
In 1981, the local geologist Lou Lepp founded our company with an innovative vision. Lou aimed to blend the sciences of geology, hydrogeology, and the environment with the form and structure of geotechnical engineering. By recognizing the interconnectedness of these fields, he believed that he could provide his clients with a comprehensive understanding of their projects.
Today, we take great pride in carrying on Lou's legacy and fulfilling his vision through the expertise and enthusiasm of our experienced team. With a broad and deeply-rooted practice of geotechnical, geologic, hydrogeologic, and geophysics, we employ a specialized staff that brings expertise across numerous disciplines.
We believe that success is built on the foundation of teamwork, clear communication, and well-defined goals. Everyone on our staff plays an integral role in achieving our objectives, and we work collaboratively to ensure that we are all moving in the same direction. At the end of the day, our success is a testament to the power of teamwork, and we're proud to be a part of such a dedicated and talented group of professionals.
LEADERSHIP TEAM

Bruce Blyton, P.E.
Senior Principal Geotechnical Engineer & President

Matt Miller, P.E.
Principal Geotechnical Engineer

Jay Chennault, L.Hg. P.E.
Principal Hydrogeologist/Engineer

Carrie Mozingo, L.G., L.E.G., P.E.
Principal Engineering Geologist/Engineer

Kurt Merriman, P.E.
Senior Principal Geotechnical Engineer

Curtis Koger, L.G., L.E.G., L.Hg.
Senior Principal Geologist / Hydrogeolgist

Jennifer H. Saltonstall, L.G., L.Hg.
Principal Geologist / Hydrogeologist

Bruce Guenzler, L.G., L.E.G.
Principal Geologist
GEOTECHNICAL TEAM
Stephen Siebert, P.E.
Senior Associate Geotechnical Engineer
Tim Peter, L.E.G., L.Hg.
Senior Project Geologist
Tony Romanick, P.E., CESCL
Senior Engineer
Peter Linton, L.G., CESCL
Senior Staff Geologist
Alex Ybarra, L.G. CESCL
Senior Staff Geologist
Aaron Turnley, G.I.T. CESCL
Senior Staff Geotechnical Field Specialist
Lara Koger
Project Environmental/Geoscientist
Jon Hansen, CESCL
Senior Staff Natural Resources Scientist
Kristen Marohl, L.G.
Senior Staff Geologist
Devon Nutter
Staff Natural Resources Scientist
Ryan Witters
Staff Natural Resources Scientist
Forest Gheen-Regouski
Staff Natural Resources Scientist
Carmen Foca
Staff Engineering Technician
Trevor Litzell
Staff Technician
Jeff Laub, P.E., L.G., L.E.G.
Associate Engineering Geologist
Scott Hannah, L.G., L.E.G.
Senior Geologist
Bradford Drew, P.E.
Senior Engineer
Josh Greer, L.G., L.E.G., CESCL
Project Geologist
Brendan Young, L.G.
Senior Staff Geologist
Catherine Ikeda
Soils Laboratory Manager
Jackson Lundgren, L.G.
Senior Staff Geologist
Collin Marshall
Staff Natural Resources Scientist
Eddy Williamson
Staff Technician
Blake Muggli
Staff Natural Resources Scientist
Kayla Huff
Engineering Intern
HYDROGEOLOGY TEAM
Chris Allen, L.G., L.Hg.
Associate Hydrogeologist
Luke Mioduszewki, L.Hg., L.G., CESCL
Senior Project Geologist
Stan Thompson, L.G., L.Hg.
Senior Staff Geologist
Brennan Nowak
Senior Staff Field Specialist
Alex Johanson, G.I.T.
Staff Geologist, GIT
Gus Carlson, G.I.T
Staff Geologist, GIT
Sarah Faubion, GIT
Staff Geologist, GIT
Jess Hocking L.G.
Project Geologist
Lam Nguyen, L.G.
Senior Staff Geologist
Anton Ypma, L.G., L.Hg.
Project Geologist
Matthew Porter, L.G., L.Hg.
Senior Staff Geologist
Katie Faber
Senior Staff Water Resources Scientist
Evan Paul, G.I.T.
Staff Water Resources Scientist
Sam Seabury
Geology Intern
Geophysics Team
Joe Natale, EIT
Senior Staff Geophysicist
Nicki Shobert, EIT
Research Engineer | Data Scientist
SUPPORT TEAM
Ryan Tuomisto
Business Development Manager
Accounting
Laura Jackson-Kinney
Accounting Manager / Human Resources
Accounting
Camille Essley
AR/AP Specialist
Accounting
Susana Hernandez
AR/AP Specialist
Accounting
Rabecca Larson
AR/AP Specialist
Misty Green
Business Operations Manager
Elaina Radden
Front Desk Coordinator
Alexis Krapas
Project Assistant
Celebrity Banawis
Data Entry
Regan Oswald
Administrative Assistant
Linda Downey
Senior Technical Editor
J. Harrington, CESCL
Technical Editor and Contributor
Nicole Fink
GIS Technical Lead
Karen Behm
GIS Analyst
Michael Trop
GIS Analyst
Beth Nelson
Graphics Specialist