PROFESSIONAL EXPERIENCE

Organization	Dates of Employment	Title
Missouri University of Science & Technology (formerly the University of Missouri-Rolla) Geolith Consultants, Inc.	2001-present 1998-2001	Associate Professor and Karl F. Hasselmann Chair Principal Engineering Geologist
Department of Civil & Environmental Engineering, University of California, Berkeley	1994-2001	Lecturer in Engineering Geology
Rogers/Pacific Corporation	1984-1997	Principal-in-Charge
Alan Kropp & Associates	1982-1984	Principal Engineer
J. David Rogers, Consultant in Geological Engineering	1979-1982	Sole Proprietor
University of California, Berkeley	1976-1981	Teaching/Research Assistant, Instructor

PROFESSIONAL REGISTRATIONS

Professional Engineer (Civil), California (RCE 62064), by examination

Professional Geologist, California (RG‑4723), by examination

Certified Engineering Geologist, California (EG‑1472), by examination

Certified Hydrogeologist, California (HG-387), by examination

American Institute of Professional Geologists Certified Professional Geologist (CPG-8977)