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continued from page 2 <br /> DDJC-Sharpe Background and Site Characteristics <br /> DDJC-Sharpe is located in San Joaquin County, northeast of groundwater contamination.Investigations at the depot <br /> the City of Lathrop and approximately 9 miles south of the City revealed that contamination of soil and groundwater resulted <br /> of Stockton.The installation—encompassing approximately primarily from industrial cleaning solvents, petroleum fuels, <br /> 720 acres—forms a 0.5-mile-wide(east-west), 2-mile-long metals,and pesticides. <br /> (north-south) rectangle.Current land use at DDJC-Sharpe is <br /> designated as industrial and it is anticipated that the land The DLA serves as the lead federal agency authority for cleanup <br /> use designation will remain industrial in the future.The area activities at DDJC-Sharpe,a federal facility.The United States <br /> surrounding DDJC-Sharpe includes mixed-use light industrial, Environmental Protection Agency(EPA)is the lead regulatory <br /> agricultural,and residential land. Railroad rights-of-way agency,and the California Department of Toxic Substances <br /> parallel the eastern and western depot boundaries. Control(DTSC)and the California Regional Water Quality <br /> Control Board(RWQCB)are regulatory support agencies for <br /> The principal depot mission has been the storage,shipping,and environmental investigation and restoration at the depot. <br /> packaging of general supplies in support of America's Armed <br /> Forces,as well as the maintenance of military equipment. Milestones in the soil cleanup program at DDJC-Sharpe are <br /> These tasks require the use of petroleum hydrocarbon fuels shown below. Please note that the groundwater cleanup <br /> and a variety of other industrial chemicals. Past use and efforts at DDJC-Sharpe are guided by a separate ROD, <br /> disposal practices resulted in the release of these chemicals and no amendments to that ROD are considered in this <br /> into the environment.In 1979, DDJC-Sharpe began conducting Proposed Plan. <br /> environmental restoration activities to address soil and <br /> Key I !JC-Sharpe Milestones for <br /> ® Installation Restoration Program (IRP)initiated to investigate environmental contamination <br /> DDJC-Sharpe placed on the National Priorities List(NPL) Eby EPA i <br /> Federal Facilities Agreement(FFA)signed �by dWB <br /> ® Remedial Investigation/Feasibility Study(RI/FS)completed <br /> Proposed Plan for soil sites published <br /> ® ROD for soil sites signed by DLA, EPA, DTSC, and RWQCB <br /> Pre-design technical summary for soil sites remedial actions completed <br /> Construction of soil vapor extraction (SVE)system completed and SVE operation begun; <br /> metals-contaminated soil excavated and disposed offsite <br /> i i r Two remedial action reports published documenting investigations and cleanup activities at soil sites, <br /> including no further action decisions <br /> r r Two remedial action reports published documenting investigations and cleanup activities, <br /> including no further action decisions at soil sites;SVE operations completed <br /> Initial Five-Year Review completed <br /> i r Response Completion Plan(RCP)published <br /> Additional metals-contaminated soil excavated and disposed off site <br /> i One remedial action report published documenting investigations and cleanup activities at soil sites <br /> including no further action decisions <br /> 3 <br />