Detailed geologic maps provide the framework for understanding site conditions, geologic hazards, and earth materials. Our geologists combine field observations with advanced GPS and CAD technology to produce accurate maps that support site development, remediation, and engineering design. Services include:

GLA’s geologists are nationally recognized for landslide characterization, monitoring, and mitigation. Working closely with our geotechnical engineers, we evaluate slope instability and develop practical, cost-effective solutions to manage landslide risk.

GLA offers our clients expertise in seismic refraction and refraction microtremor (ReMi) geophysical surveys. Seismic refraction methods can assess rippability of rock and depth to groundwater. The ReMi technique can assess geologic structure, stratigraphy, and for the purposes of seismic site response analyses, shear wave velocity site class.

GLA provides detailed characterization of soil properties and structure for our clients. Our professionals have extensive experience in mapping and interpreting geologic conditions and collecting representative soil samples for laboratory analyses. We offer:

Geo-Logic Associates designs efficient subsurface investigations that maximize data quality while minimizing cost and site disturbance. By strategically locating boreholes and field explorations, we collect the information needed to support sound engineering and environmental decisions. Applications include:

We help clients understand complex site conditions and geologic hazards such as unstable slopes, landslides, and fault activity, and provide critical “ground truthing” for most geotechnical and engineering projects, integrating applied earth science into design, construction, and forensic investigations. Our engineering geologists have a higher degree of application-based geologic understanding and provide valuable strategic input to avoid unanticipated environmental and complex subsurface conditions that could lead to cost and/or schedule overruns.