Diverse Project Specialists

Professional Geophysical approaches for a variety of goals and environments.  Large scale recharge studies, characterization for spreading basins, and evaluations for well siting.  Proven method application decisions based on  theory, knowledge, site specific conditions, and client goals.  Demonstrated expertise in combining measurements of several physical properties to supply realistic hydrostratigraphic interpretations. All of our projects are integrated with GIS and/or georeferenced data. 

15 years of Responsible Charge Vibration Monitoring and testing work spanning all sectors. Planning and conducting tests to establish feasibility and guideline in tight quarters and sensitive locations. Development of complex field plans with support of methods such as seismic refraction. Monitoring and Observations and extensive reporting.  Litigation preparation and forensic evaluations.

More than 100 passive shear wave studies to determine seismic site class (Vs 100) across western U.S. states.  Seismic refraction surveys to determine stratigraphy and rippability in almost all types of subsurface conditions.  Active source studies to complement the above, as well as to determine quantitative soil properties for use in geotechnical  design calculations.

We have been key supporters in several areas of litigation preparation and impact evaluations of properties.  Our broad background of performing actual work through field tasks and analyses legitimizes our judgment.

In most cases we will have seen it before, when we have not,  we will get you the right expert. 

Over 25 years of experience on specialized projects such as landslides and sites with highly variable conditions.  Numerous technical shoring projects along P.L.'s with caissons, tiebacks, problem soils, and instrumentation.  Field decisions supported by broad software & engineering analysis experience such as: slope stability; liquefaction; pile-driving; & common geotechnical lab testing criteria.

In addition to vibration work, our experience extends to routine use and detailed analyses of tiltmeters, piezometers, inclinometers, and several other instruments.  We also use GPR to map near-surface stratigraphy, steel members, and other features of structural elements.