Environmental Remediation, Tooele Army Depot and Defense Depot, Utah

In 2019, due to lack of funding to get the necessary contracts in place, three U.S. Army sites (Tooele Army Depot-North (TEAD-N), Tooele Army Depot South (TEAD-S), and Defense Depot Ogden Utah (DDOU) in Utah fell out of compliance with regulatory requirements to continue the remediation and long-term monitoring of volatile organic compounds found in the soil and groundwater. Once funding became available, Brice was contracted to get the sites back into compliance and resume remedial action-operations over the course of the next five years.

Our scope of work includes Operations and Maintenance (O&M) of existing air sparge/soil vapor extraction (AS/SVE) systems and groundwater treatment systems, Long-Term Management (LTM) groundwater monitoring, and Land Use Control (LUC) and Post Closure Plan (PCP) Inspection, Repair, and Reporting.

Brice is working diligently to achieve the differing cleanup goals of the multiple regulatory agencies involved (each site is regulated by a different agency) to reduce life-cycle costs and advance the sites toward closure. Using new modeling technology developed by the U.S. Army Corps of Engineers, Brice has begun optimizing operations and has been able to receive regulatory approval to shut down two of the existing AS/SVE systems with several more expected to received shutdown approval by the end of the contract.

Additionally, Brice has worked with regulatory agencies to begin the process of optimizing the compliance programs across the sites including receiving regulatory approval to: reduce the frequency of groundwater modeling requirements at TEAD-N from annually to every five years; abandon 27 unnecessary monitoring wells at TEAD-N, discontinue LTM sampling at one TEAD-S site, shutdown the DDOU Operable Unit 4 Hot Spot groundwater discharge system, and reduce the number of DDOU compliance monitoring wells by 50 percent.