GMU Geotechnical

Over 50 Years of Engineering Excellence.

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      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
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        • Drilled Displacement Columns at Emerald Bay
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      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers
  • In The News
      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers
  • Connect
      • Over 50 Years of Engineering Excellence
        949.888.6513
        23241 Arroyo Vista
        Rancho Santa Margarita
        CA 92688
        • GMU Difference
        • History
        • Key Staff
        • Client List
        • Culture
        • Geotechnical Engineering & Engineering Geology
        • Pavement Engineering
        • Structural Engineering and Civil Engineering
        • Forensic Engineering and Expert Witness
        • Soils, Materials Testing and Inspection
        • Construction Management and Monitoring
        • News
        • Publications
        • Awards
        • Featured Projects
        • Drilled Displacement Columns at Emerald Bay
        • Contact
        • Careers

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General Contact

GMU
23241 Arroyo Vista
Rancho Santa Margarita, CA 92688
P:949.888.6513
F:949.888.1380

People Contacts

Principals
Greg Silver | M.S., PE, GE
President/Principal Engineer
949.633.0617

Gary Urban | PE, GE
CEO/Principal Engineer
949.633.0613

Mike Moscrop | M.S., PE, GE
Vice President/Principal Engineer
949.463.4296

Aron Taylor | M.S., PG, CEG
Vice President/Principal Geologist
949.510.7503

Directors
Bob Mutchnick
Director of Engineering Seismological Services
949.289.6817


Ali Bastani
Director of Geotechnical Engineering
949.232.8984


Roger Schlierkamp
Director of Pavement Engineering
949.300.2158


Dave Atkinson
Director of Commercial Development
949.633.0618

Senior Staff
Lisa Bates
Associate Engineering Geologist
714.329.3746


Dave Hansen
Senior Geotechnical Engineer
949.433.8850


Katie Farrington
Project Geologist
949.235.6723


Ryan Douglas
Staff Engineer
949.394.5641


Matt Farrington
Staff Engineer
951.551.1556


Rob Howell
Staff Engineer
949.289.3158


Jessy Meza
Design Engineer/CAD
626.614.4063


John Villarraga
Laboratory Manager
Norm Biehn
Special Inspection Manager/Senior Special Inspector
951.741.2937


Administration
Jenni Neff
Office Manager

Marianne Brown
Accounting Manager

Cynthia Balo
Human Resource Manager

News HighlightsAll

GMU Project at Crown Valley Community Park Celebrates Completion August 24, 2017 | Read More

Featured ProjectAll

Soil Nail Wall Under Construction – Spectrum Center Drive, Irvine

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23241 Arroyo Vista | Rancho Santa Margarita CA 92688 | USA | 949.888.6513