Christopher J. Sexton



  • S., Geological Sciences, California State University, Los Angeles, 1990
  • S., Geological Sciences, California State University, Northridge, 1983
  • Numerous Post-Graduate University Courses and Seminars


  • Registered Geologist, California, #4612
  • Registered Geologist, Idaho, #681
  • Certified Engineering Geologist, California, #1441
  • Certified Engineering Geologist, Oregon, #1148
  • Certified Professional Geologist #9198


  • GeoDynamics, Inc., Thousand Oaks, Principal Geologist, 2005-present
  • Bing Yen & Associates, Inc., Camarillo, Senior Geologist, 1999-2005
  • Southwestern Engineering Geology, Fillmore, Owner, 1993-present
  • California State University, Los Angeles, Assistant Professor, 1994
  • West Coast Geotechnical, Westlake Village, Chief Geologist, 1991-1993
  • Leighton & Associates, Inc., Westlake Village, Project Geologist, 1990-1991
  • Allan E. Seward Engineering Geology, Inc., Newhall, Senior Project Geologist,
  • 1983-1990
  • MESA2, Inc., Marine and Environmental Sciences, Northridge, Staff Geologist,
  • 1981 – 1982


  • Member, Association of Engineering Geologists
  • Member, American Geophysical Union
  • Member, American Institute of Professional Geologists
  • (Newsletter Editor 1994 and 1997 through 1999; President-elect, California
  • Section, 1994)
  • (President, California Section, 1995)


Christopher Sexton, RG, CEG, will serve as a Reviewing Engineering Geologist. Mr. Sexton has 30 years of experience as an engineering geologist. As an independent consultant, Mr. Sexton has provided engineering, geology support to many geotechnical firms prominent in the southern California area. His unique experience allows first-hand familiarity with numerous different philosophies and approaches to the tasks inherent in completing geologic studies. During his career, Mr. Sexton has served as the principal investigator of landslides, active faults, studies of sea-cliff retreat rates, detailed assessments of development plans ranging from single lots to tracts with thousands of homes, slope instrumentation, road alignments, and in-grading slope stabilization. Mr. Sexton has extensive experience as a reviewing geologist. His extensive experience both as a consultant and as a reviewer fosters an ability to negotiate difficult review situations.


  • “An Overview of the Geology of the Soledad Basin, Northern Los Angeles County, California”; AEG Field Trip Guidebook; 1990.
  • “Investigation of a Low-Angle, Dip-Component, Translational Landslide, Haskell Canyon, Los Angeles County, California”; Proceedings of the 35th Annual Meeting of the Association of Engineering Geologists, Oct. 2-9, 1992.
  • “A Perspective on Standard of Care”; AEG News; Volume 41, Number 2; Spring 1998.
  • “Common Pitfalls in Reaching Geologic Conclusions for Small Residential Developments”; Program with Abstracts; 42nd Annual Meeting of the Association of Engineering Geologists; Presented September 27, 1999.
  • “Things Your Mother Never Told You: Post-Academic Skills and Knowledge Necessary to Survive as an Engineering Geologist”; Program with Abstracts; 43rd Annual Meeting of the Association of Engineering Geologists; Presented September 24, 2000.
  • “The California Alquist-Priolo Earthquake Fault Zoning Act – Challenges in Implementing State Policy at the Local Level”; Program with Abstracts; 50th Annual Meeting of the Association of Engineering Geologists; presented September 28, 2007
  • “Implementing the California Earthquake Fault Zoning Act– A Proposal for Change”; Environmental and Engineering Geoscience; February, 2008; Vol. 14, No. 1
  • “Newly discovered faults associated with ground cracks of the 1971 San Fernando earthquake”; Program with Abstracts, Seismological Society of America Annual Meeting, April 8-10, 2009.