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test was conducted in June 1992, and an SVE system began Dperation at the site in August 1995. <br /> SECOR International, Inc. of Huntington Beach, California detail this in their <br /> September 12, 1996 Soil Vapor Extraction System Installai ion and Start-up Report. Between <br /> January 1996 and March 1998, the SVE system removed approximately 6,250 pounds of TPHg. <br /> The SVE system was shut down March 9, 1998 due to d clining influent concentrations and <br /> rising groundwater. <br />