COMMITTEES AND ADVISORY BOARDS
- Member, Missouri Seismic Safety Commission, by Governor’s appointment, Missouri State Emergency Management Agency (November 30, 2005 to present)
- Member, St. Louis Earthquake Hazards Mapping Project Technical Working Committee of the Central and Eastern Office U.S. Geological Survey and the Center for Earthquake Research and Information (February 2006 to present)
- Technical Advisory Committee on Grading Standards for the California Geological Survey (March 2004 - present)
- Member, Independent Panel to Investigate the Failure of the Dead Sea Dike 19 for the Hashemite Kingdom of Jordan (2000-2001)
- Technical Advisory Committee on Regional Geologic Studies and Slope Stability Modeling for State of California, Department of Conservation, California Geological Survey (1999-2001)
- Earthquake-Induced Landslide Hazards Working Group, California Department of Conservation, California Geological Survey (1996-98)
- Building Codes Committee of the Association of Engineering Geologists (1990-present, Chair 1992-97)
- Dam Safety Committee of the Association of Engineering Geologists (2001 – present)
- Archivist, Engineering Geology Foundation, 2001-present
- Cal Poly Science Technologies Building Advisory Committee, September 1996 to October 1999
- Earthquake-Induced Hazards Landslide Working Group panelist, California Division of Mines & Geology, appointed February 1996; served till Dec 1998.
- U.S. Geological Survey-National Earthquake Hazard Reduction Program review panelist 1992-96
- City of Calabasas Geology Review Board 1992-93
- Member, Engineering Geology Advisory Committee for the City of Los Angeles, July 1990 to June 1998
- External Reviewer for Volume III-Federal Highway Administration Seismic Retrofitting of Slopes, Embankments and Rockfalls, for National Center for Earthquake Engineering Research 1996-97
- Scott Dam Technical Review Board for Pacific Gas & Electric Co., 1995-96
- Member, General Design and Lateral Design Code Development Committee, International Conference of Building Officials, March 1990 to April 1994
- Geotechnical Steering Committee and Vice Chair, San Francisco Section of the American Society of Civil Engineers 1991-95
- Examination Committee, Board of Registration for Geologists and Geophysicists, Department of Consumer Affairs, State of California, 1992-94
- Seismic Zonation Subcommittee, Structural Engineers Association of Northern California, 1990-92
- Adhoc Advisory Panel on Seismic Vulnerability of the San Francisco-Oakland Bay Bridge for the California Department of Transportation, 1990-93
- Executive Board, San Francisco Bay Area Squadron of the Association of Naval Aviation, 1987-91
- Geotechnology Advisory Committee, Diablo Valley College 1987-89
- U. S. Committee on Rock Mechanics of the National Research Council, 1984-96
- Advisory Board for the Urban Creeks Council (1984-88)