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FORMER HOLLY SUGAR CORPORATION <br /> 20500 HOLLY DRIVE, TRACY <br /> LOP SITE CODE: 2124 <br /> CVRWQCB CASE# 390132 <br /> APN: 21216010 <br /> 10/18/1985 Two USTs (UST-A and UST-B) used to store gasoline were removed on <br /> this date. <br /> 11/05/1992 EHD filed an Unauthorized Release Report and a Prop 65 on this date. <br /> 02/25/1993 Site placed in the LOP for soil and ground water. assessment. <br /> 05/12/1993 UST-A was over excavated on this date. Excavation confirmation soil <br /> samples were collected. <br /> 04/05/1994 Harding Lawson Associates (HLA) prepared a Closure Assessment Work <br /> Plan to conduct further work. <br /> 06/30/1994 The date of the Tracer Research Corporation Vapor Trace Soil and <br /> Ground Water Investigation.' <br /> 12/20/1994 The date of the HLA Closure Assessment Report. <br /> 01/19/2004 The date of UST Site Investigation Report prepared by TriHydro <br /> Corporation. <br /> 01/24/2011 Contaminated soil removal began in the area of UST-B.and UST- Bunker <br /> began on this date. Approximately 1700 cubic yards were excavated and ' <br /> hauled off-site for proper disposal. <br /> 02/11/2011 MW-B was destroyed during soil excavation and replacement MW-BR. <br /> MW-BR is located approximately 20 feet down gradient of former MW-B <br /> _____,_out-side-of the final excavation—. -- <br /> 05/17/2011 <br /> xcavation— r05/17/2011 The date of Site Remediation and Case Closure Summary prepared by <br /> Ground Zero Analysis, Inc. <br /> G <br /> 06/08/2011 EHD and CVRWQCB staff met on this date to discuss site closure; both <br /> agencies agreed with site closure. <br /> 06128. 12011 EHD prepared a Case Closure Summary and Site Chronology for the <br /> CVRWQCB. The Site Chronology and the 30-Day Closure Concurrence <br /> Request Letter will be completed and submitted to the CVRWQCB for <br /> review and comment. <br /> i <br /> j <br />