ISI operates a full service Geotechnical Laboratory equipped to perform all of the common and many of the advanced geotechnical tests required by our clients. Located in Berkeley, This laboratory is inspected by, and maintains accreditations, with AMRL/AASHTO and Caltrans as well as enrolled in the Reference Sample Program.

Our lab manager, Patricia Slavin-Hodgkins, has over 35 years of experience and is certified by National Institute for Certification in Engineering Technologies (NICET) as a Level III in the specialty of Geotechnical Engineering Technology – Laboratory.

  • Soils Inspection/Compaction Testing
  • Hydrometer
  • Sieve Analysis
  • Specific Gravity
  • Plasticity Index
  • Organic Content
  • Triaxial Permeability
  • Flexible Wall and Rigid Wall Permeability
  • Triaxial Consolidated Undrained
  • Triaxial Unconsolidated Undrained Shear Test
  • Triaxial Unconsolidated-Undrained (TXUU)
  • Triaxial consolidated-Drained with pore pressure measurements (TXCU)
  • Consolidation
  • Unconfined Compression
  • Direct Shear
  • Rock Testing
  • Swell