These organizations volunteered time and effort to the initial
establishment of the Turkey Flat Test Area in the 1980’s,
performing borehole and geophysical surveys that helped to
characterize the geotechnical properties and geologic
structure of the site, and acquire input records for the weak-motion test.
California Department of Transportation
Sacramento, CA
Woodward-Clyde Associates (now URS Corporation)
Los Angeles
Harding Lawson Associates
Novato, CA
Kajima Corporation
Japan
Lawrence Livermore National Laboratory
Livermore, CA
Leroy Crandall and Associates (now MACTEC, INC)
Los Angeles
OYO Corporation
Japan
Pitcher Drilling Company
East Palo Alto, CA
Qest Consultants
Murphys, CA
