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DEFENSE DISTRIBUTION REGION WEST <br /> TRACY FACILITY <br /> TECHNICAL REVIEW COMMITTEE MEETING <br /> MINUTES <br /> 3 OCTOBER 1994 <br /> Update on Technical Review Committee (TRC ) Process/New Format: <br /> The TRC is required by the Department of Defense and is designed <br /> to engage the surrounding community in DDRW Tracy's environmental <br /> cleanup decision-making process . DDRW Tracy has recently changed <br /> its format to an informational-type meeting to encourage more <br /> community participation. <br /> Brief Review of Depot History/Problems : <br /> DDRW gave a brief history of the depot and its groundwater <br /> problems . <br /> DDRW Tracy was placed on the National Priorities List in 1991 and <br /> became a Superfund Site due to groundwater contamination. The <br /> contamination was due to spillage of Trichloroethene (TCE ) and <br /> Perchloroethene (PCE ) . In industry, these organic solvents are <br /> used primarily for degreasing operations and dry cleaning. <br /> The depot came into existence in 1942 . At that time material was <br /> shipped world-wide due to World War II. The depot has also <br /> shipped material for the Korean War, Vietnam War, and Operation <br /> Desert Storm. During these wars large amounts of solvent were <br /> moved and small spills occurred. In 1980 it was determined there <br /> was groundwater contamination at DDRW Tracy because of those <br /> spills . <br /> Brief Review of Cleanup Efforts to Date: <br /> "The contamination started- on DDRW Tracy and has since moved onto <br /> private land. An interim remedial measure ( IRM) or air stripper <br /> was constructed to capture the contamination. DDRW explained the <br /> air stripping process to attendees . It has been estimated it <br /> will take about 30 years to clean up the groundwater <br /> contamination using the air stripping method. <br /> Brief Overview of Upcoming Cleanup Efforts : <br /> DDRW Tracy has solid waste management units (SWMUs ) on the <br /> facility. A SWMU is a land-based treatment unit which includes <br /> process sewers, tank piping, container storage areas, and <br /> incinerators according to the Resource Conservation and Recovery <br /> 1 <br />