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Defense Distribution Center VA DE Defense Distribution Depot San Joaquin, Sharpe Site Sharpe Pact Sheet#3 Potential Impacts of Chemicals in Groundwater m � September 1999 �" 3 West of DDJC-Sharpe Defense Distribution Center Defense Distribution Depot San Joaquin, Sharpe Site (DDJC-Sharpe) is conducting a About the Depot series of cleanup activities designed to protect the health and safety of the community DDJC-Sharpe is and the environment. We are committed to sharing information about environmental located in Lathrop, issues that could affect the community. California, and is bordered by Roth Road to the north and Lathrop Road to the What is the Pur pose of This Fact Sheet? south. The facility is p � .,� �^\ `"� operated by the t A Defense Logistics This fact sheet has been prepared to 4., Agency's (DLA) provide information about chemicals founds �7 Defense Distribution in a groundwater plume moving in a westerly direction from the Defense t Command (DDC) and Distribution Depot San Joaquin, Sharpe Site is one of the two (DDJC-Sharpe) located at 700 East Roth depots Ij; primary distribution Road in Lathrop, California. .7 ' ..-: —one on the �.• east coast and one in the west. Until 1976, How Does this Affect Me? DDJC-Sharpe the depot also served t"s Environmental investigations have found as a maintenance , facility, repairing and that hazardous waste handling and disposal practices that occurred at the Sharpe depot reconditioning heavy P equipment and from the late 1940s through 1976 caused aircraft. chemicals to enter a groundwater plume [ 1 beneath the Sharpe site (see Figure 1). ! The Department of These chemicals, trichloroethylene (TCE) LYOWI (PCE),th and tetrachloroethylene colorless Defense has y ( )+ arllRosewood. undergone a number organic liquids used as degreasers and Residential of organizational cleaning solvents. Waste managementDevelopment changes in recent practices at DDJC-Sharpe have improved F years. Many military significantly since the 1970s, and TCE and Depth to i bases are closing. PCE are no longer entering the environment Groundwater The Sharpe depot will at the site. 9 to 28.4 feet - DGS remain open, and its distribution According to the U.S. Environmental responsibilities will Protection Agency (U.S. EPA), TCE and PCE continue. However, may cause health problems if people drink water containing these chemicals at levels in the depot is subject to g t s on-going excess of the health standard set by the U.S. 9 9 m organizational EPA. �-.-- A changes within the DLA and the DDC. It is important to note that drinking water for DDJC-Sharpe and the surrounding community comes primarily from ' s For More Information municipal wells and that contaminated Please contact Doug groundwater is not used for human Legend: Imberi, DDJC Office of consumption. Command Affairs, O TCE detected in groundwater levels to at (209) 832-9009 40 feet below ground surface (BGS) or Even though the military has been actively TICE detected in groundwater levels- Heidi Hansen, investigating and cleaning up TCE and PCE 40 to 90 feet BGS California Dept. of at the depot for over 20 years, questions Toxic Substances have recently arisen about potential effects t - l TICE detected in groundwater levels- Control Public of the groundwater plume on fruit trees and 90 to 120 feet BGS Participation vegetables. �, PCE detected in groundwater levels- Specialist, at Continued overfed �� 40 to 90 feet BGS (916) 324-3108. Figure 1.