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The treatment site is a former Air Force Base, located in St. Clair County in Southwestern Illinois, 25 miles southeast of St. Louis, Missouri. Following the excavation of all underground piping and two large underground storage tanks, groundwater samples indicated BTEX contamination was at a level exceeding groundwater remediation objectives. From 2004-2009, the site underwent long-term monitoring in accordance with EPA and LUST program requirements. Initial remediation strategies at the site were successful in mass reduction of all contaminants except benzene. Following the application of PetroFix micron-scale remedial fluid, Scott AFB has been recommended for no-further-action (NFA) status.

Performance-Based Objectives Achieved at Scott AFB