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Group Delta has two materials testing laboratories located in Anaheim and San Diego, California. Our laboratories are capable of performing a wide variety of geotechnical and materials testing services, including soils and aggregates, asphalt concrete, reinforced concrete, masonry, prestressed concrete, structural steel, welding, and fireproofing. Our laboratories are accredited and/or certified by local governing agencies, as well as national organizations, including CCRL, AASHTO (AMRL & CCRL), Division of the State Architect (DSA), City of Los Angeles, U.S. Army Corps of Engineers, and Caltrans.

Soils Testing
  • Classification & Index
  • Strength Tests
  • Volumetric Change
  • Corrosion
  • Compaction
  • Aggregate/Subgrade
Materials Testing
  • Asphalt Testing
  • Concrete Aggregate
  • Concrete Cylinders
  • Concrete Beams
  • Masonry
  • Masonry Unit Cubes
  • Masonry Prisms
  • Grout/Mortar
  • Dry Pack Blocks
  • Shotcrete
  • Reinforcing Steel
  • Chemical Physical Properties
  • Post-Tensioning
  • High Strength Bolting
  • Fireproofing Testing
  • Mix Design Reviews & Trial Batched
  • Vapor Emissions Testing
Lab Accreditation & Certifications

Group Delta meets all the requirements as an approved testing agency with the following local and national accrediting/certification authorities:

  • AASHTO Resource (American Association of State Highway and Transportation Officials)
    • AMRL (AASHTO Materials Reference Laboratory)
    • CCRL (Cement and Concrete Reference Laboratory)
  • ACI (American Concrete Institute)
  • ANSI (American National Standards Institute)
  • APWA (American Public Works Association)
  • ASNT (American Society of Nondestructive Testing)
  • ASTM (American Society for Testing and Materials)
  • Caltrans (California Department of Transportation)
  • Structural Steel
  • Laboratory
  • DSA (Division of the State Architect)
  • ICBO (International Conference of Building Officials)
  • NICET (National Institute for Certification in Engineering Technologies
  • Army Corps of Engineers
  • OSHPD (Office of Statewide Health Planning & Development)
  • City of San Diego
  • City of Los Angeles

Quality Assurance/Quality Control Program
Group Delta Quality Assurance Program is designed to provide the documentation needed to establish confidence that the testing or inspection function is being performed adequately. Our Quality Systems Manual includes internal and external audits of our program, and the results of our participation in sample reference programs. Our reports are reviewed and signed by a registered professional engineer after undergoing a strict peer review process. This level of QA/QC provides our clients with a peace of mind that the testing performed in our laboratories are done per the industry standards.

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