Gary Sandstrom home
Gary C. Sandstrom,
Geologist, LLC

Certified Engineering Geologist


  • BA in Anthropology from Oregon State University in 1975
  • BS in Geology from Oregon State University in 1977
  • Graduate teaching assistant in Geology at Northern Arizona University in Flagstaff, 1980-81


  • Oregon Registered Professional Geologist since 1993
  • Oregon Certified Engineering Geologist since 2003
  • Washington Geologist with Engineering Specialty since 2003


  • 1981-1991: Mudlogger and computer operator (field geologist) in the oil and gas industry in California, Oregon and the North Sea
  • 1991-2007: Engineering geologist based in Portland, Oregon performing geotechnical site investigations and construction observation
  • Since 2007: Private consultant performing residential geohazard investigations in addition to geotechnical work


634 SW 54th St
Corvallis OR 97333

Cell 503-547-3678