HGL Demonstrates to USAF, USACE, and EPA Successful DNAPL Remediation at DRMO Project Site Using Innovative ERH Technology

On November 6, 2019, EPA Region 3 issued the Air Force a formal letter acknowledging that the contaminant mass had been removed and concurring that the ERH system could be shutdown.

On September 16, 2019, HydroGeoLogic, Inc. (HGL) project manager Ken Cottrell, P.G., and Mark Kluger of the TRS Group (HGL’s subcontractor) led a group of dignitaries on a tour of the Brandywine Defense Reutilization and Marketing Office (DRMO) project site in Brandywine, MD. The tour focused on a demonstration of the innovative electrical resistance heating (ERH) system employed by HGL and TRS to remediate dense nonaqueous phase liquid (DNAPL) contamination in the subsurface. Among the dignitaries was Major General Tom Wilcox, Commander, Air Force Installation and Mission Support Center, Joint Base San Antonio, TX.

Under a performance-based remediation (PBR) contract with the USACE Omaha District, HGL began operating the ERH system in March 2019 after several years of planning and coordinating with the Air Force, CSX Railroad, Washington Suburban Sanitary Commission, local residents, and federal, state and local regulators. William Burris, P.G., the Air Force Environmental Restoration Program Manager, held a kickoff ceremony to switch on the ERH system, and HGL subsequently operated both the subsurface heating system and the off-gas emission control system for 9 months and fully achieved remedy objectives.

Pictured are tour participants including Maj. Gen. Tom Wilcox, USAF (fifth from the left), and William Burris, USAF (third from the right).