111 Mission Ranch Blvd. Ste. 100
Chico, CA 95926
Phone: 530.893.1600
Fax: 530.893.2113

Hours of Operation

M-F: 8:00 AM – 5:00 PM PST (Excluding national holidays)
(Lunch daily: 12:00 PM – 1:00 PM)

Email Address


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NorthStar Employees

Julio Aguirre Architectural Drafter
Sean Shearer, NCARB, LEED AP BD+C Architectural Department Manager/Senior Architect
Larry Coffman Senior Architect
Ty Yurkovic, AIA Architect
Tonia Hanson Job Captain, Specifier
Tim Miller CAD Draftsman
Business Operations
Tina Garber HR Specialist
Teresa Enos- Wakefield Director of Business Operations
Debra Edwards Senior Accounting/Contracts Administrator
Jessica Orzalli Administrative Coordinator
Civil Engineering
Holly Kaschmitter Junior Engineer
Richard Guevarra, PE Associate Engineer
Mark Adams, PE Principal Engineer
Neil A. Graber, PE Senior Engineer
Lambert O. (Jay) Lowe, PE Senior Engineer
Nick Weigel, PE President
Ross M. Simmons, PE Senior Engineer
M. Nicole Ledford, PE Associate Engineer
Robin L. Kampmann, PE Senior Engineer
Michael Main, PE Associate Engineer
Kirk Koester, PE Assistant Engineer
Steve Brands, EIT Junior Engineer
Esther Cruz-Zaragoza Senior Designer
Chris Low, EIT Junior Technician
Jake Sivertson Assistant Biologist
Kamie Loeser, MA Senior Planner / Environmental Division Manager
Kristen McKillop Senior Planner
Carol Wallen Senior Biologist, QSP
Matt Rogers Assistant Biologist
Andrew Huneycutt Assistant Biologist
Fred Weaver, LSIT Senior Technician
James Stevens, PLS Principal Surveyor
Mike Mays, PLS Survey Manager
Mark R. Herrick, PLS Associate Surveyor
Kevin Lundy, PE, LSIT Survey Party Chief
Evan Williams Survey Technician