Holston Army Ammunition Plant

In the hills of northeast Tennessee sits the Holston Army Ammunition Plant, a highly secure facility tasked with manufacturing a wide range of explosives for the US military. WGI was contracted to investigate an intricate array of filtered and unfiltered water facilities that provided fire suppression systems for the facility.

Under an agreement with ARCADIS, WGI performed 91 ASCE 38-22 Quality Level A investigations (test holes) on approximately 22 miles of mains at predefined locations. Out of the 45 locations, larger test holes were performed to widen the holes to allow for ARCADIS to perform broadband electromagnetic (BEM) testing. BEM testing requires a probe to be placed on the outside of the pipe to measure material loss that would impact the integrity of the pipe. The location of these holes and the coordination of testing were required to ensure the pipe was adequately exposed, testing was promptly performed, and the test hole was safely filled.  

WGI performed ASCE 38-22 Quality Level B investigation with the Impulse Radar Raptor 3D multi-channel GPR. We were tasked with scanning 27 unique locations on both filtered and unfiltered mains. Over 120 scans were performed in these locations, ranging from 5,000 sq feet to 500,000 square feet each. Finally, WGI also performed validation of horizontal valve locations on each of the main systems with over 400 valves surveyed and uniquely attributed for GIS database updates.