GLA has four full-service geotechnical laboratories that provide soils, rock, geosynthetics and other materials testing. Located in Albuquerque, New Mexico; Sparks, Nevada; Anaheim, California; and Grass Valley, California, these laboratories provide testing for a wide range of public and private clientele – from local construction companies to worldwide mining companies. The diverse clientele of our laboratories include consultants, engineers, contractors, other laboratories, and state, federal and local governmental agencies. Testing is conducted using the most up to date test standards available.

Laboratory Accreditations/Validations Include:

  • AASHTO (American Association of State Highway Transportation Officials) Accreditation Program (AAP)
  • CCRL (Cement and Concrete Reference Laboratory)
  • Army Corps of Engineers (ACOE)
  • Geosynthetics Research Institute (GRI)
  • California Department of State Architecture

Services include:

  • Soil properties testing
  • Lab and Field QA/QC Testing
  • Research/Development
  • Sensor Calibration
  • Instrumentation/Automation


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Accuracy and efficiency of the data-collection process is imperative to the success of your environmental or natural resources project.

GLA regularly designs, installs, and operates a wide range of automated data collection and monitoring equipment used to conduct geologic, hydrogeologic, geotechnical, and construction quality assurance testing projects. In choosing the type of equipment needed, we take into consideration site-specific conditions, and our clients frequently call upon us to design and develop specialized monitoring equipment and programs for unique circumstances. GLA’s wide range of experience collecting data at different sites ranging from remote areas to urban environment has enabled us to anticipate site conditions that can affect equipment performance, such as temperature extremes, humidity, or caustic environments. Specifying and installing the right equipment and providing the proper maintenance ensures that equipment remains functional and data collection is consistent and reliable. GLA’s in-house expertise also makes us an excellent choice for development and hosting of customized data management systems, including user-friendly, web-based platforms.

GLA uses automated state-of-the-art instrumentation for:

  • Aquifer/pumping tests
  • Recharge/infiltration studies
  • Contaminant migration studies
  • Water quality studies
  • Streamflow/surface water flow
  • Ecological health assessments
  • Water balance/watershed studies
  • Landfill gas migration analyses
  • Meteorological studies
  • Fire hazard studies
  • Air quality assessments
  • Waste rock draindown analyses

GLA also maintains a full complement of field testing equipment for construction quality assurance testing, groundwater and soil sampling, aquifer testing, and geophysical testing. Testing is conducted using the most up to date test standards available.