Advanced Geophysical Classification Services


HGL offers full-service advanced geophysical classification (AGC) capabilities and has been DoD Advanced Geophysical Classification Accreditation Program (DAGCAP), accredited since April 2018. As of January 2022, HGL has been awarded over 20 projects requiring AGC including projects involving Remedial Investigation (RI), Remedial Design (RD), and Remedial Action (RA). These projects are in the planning stage (as new ones are added), being executed, or have already been completed. HGL has conducted AGC fieldwork for FUDS and Chemical Warfare Materiel sites at CONUS and OCONUS locations, including Puerto Rico and Hawaii, for the U.S. Army Engineering and Support Center, Huntsville; Redstone Arsenal (RSA); and the U.S. Army Corps of Engineers (USACE) Jacksonville, Savannah, Tulsa, Louisville, Omaha, Pacific Office Hawaii, Baltimore, and Sacramento Districts.

While performing AGC projects, HGL has employed the newest wave of advanced sensors including the APEX One-Pass Classifier, UltraTEM Classifier, and UltraTEM Screener, along with traditional AGC sensors including the Man Portable Vector, MetalMapper 2×2 (MM2x2), and TEMTADS 2×2. HGL is also at the forefront of coupling these advanced sensors with the newest positioning technology through its application of KAARTA SLAM Stencil, which uses LiDAR-based positioning, in wooded or obstructed environments.

UltraTEM Screener Data Collection
Using KAARTA SLAM Stencil2 for Positioning, Redstone Arsenal, AL
KAARTA SLAM Stencil2 Point Cloud Image of Site Features, Redstone Arsenal, AL

HGL’s capabilities in this area are demonstrated in the following project description:

AGC-Based RI, Time-Critical Removal Action (TCRA), and RD at Former Camp Breckinridge, Kentucky