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DEFENSE SUPPLY CENTER RICHMOND, VIRGINIA
Secretary of Defense Environmental Award Fiscal Year 2016: Submission for Environmental Restoration - Installation, 7 pp, 2017

Defense Supply Center Richmond is the home of the aviation demand and supply manager for the Defense Logistics Agency. Soil and groundwater contamination have been identified in 13 operable units on the installation, and in situ bioremediation is being implemented extensively. The remedy for the dissolved-phase chlorinated organics in OU-7 consists of in situ bioremediation coupled with land use controls and long-term MNA. The remedy was implemented in 2013 by installing 23 new injection wells in eight separate transects and injecting >22,300 gal of emulsified vegetable oil substrate into the wells, followed several years later by injection of an additional 20,000 gal of substrate. The facility is also implementing the bioremediation contingency remedy for OU-8 groundwater, which is contaminated by acid neutralization pits associated with past industrial metal-working operations. The remedy was put in place in 2013 by installing 15 injection wells for the introduction of >15,500 gal of emulsified vegetable oil substrate and lactic acid. The bioremediation remedy for OU-6 began in 2015, when ~54,000 gal of edible oil substrate and lactic acid was injected into the contaminant source zone through injection wells located in seven different transects targeting both the upper and lower water bearing units, followed by additional injections of 14,000 gal of edible oil substrate in 2016. https://www.denix.osd.mil/awards/2017secdef/environmental-restoration-installation/defense-supply-center-richmond-virginia/



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