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= 4r �a <br /> TABLE 1 <br /> Chronology of Significant Events <br /> Tank Pull Through Remediation <br /> Golden Grain Company <br /> Manteca, California <br /> Event Date of Event Description Report Reference <br /> 7Remediation <br /> August- December Documented the extent of hydrocarbon Problem Assessment Report, Manteca Bean <br /> 1989 impacted soil and groundwater, and Facility, Groundwater Technology, Inc <br /> ons evaluated potential treatment options December 3989 <br /> ion December 1989- Developed final remediation design and Flna!Remedra!Plan, Manteca Baan Fac1lrty, <br /> d September 1990 plot tested sod vapor extraction system Groundwater Technology, Inc , September <br /> Recovery Well November 1990 Drilled and Installed an 8-inch diameter Addendum to Final Remedial Plan, Manteca <br /> Installation recovery well to a total depth of 55-feet Bean Facility, Groundwater Technology, Inc, <br /> bsg February 1991. <br /> Aquifer Testing December 5, 1990 Conducted 10 hour aquifer test Beac Remedial to Final nn Facility, Groundwater Technology, Inc, <br /> February 1991. <br /> Addendum to Final September 1990- Developed final remedial design for Addendum to Fina!Remedial Plan, Manteca <br /> Remedial Plan February 1991 groundwater <br /> r extraction <br /> ear actiopumping test d Bean February 1991 Groundwater Technology, Inc, <br /> presented <br /> Sod Vapor August-September Completed underground and Quarterly Report, September 25, 1992 <br /> Extraction System 1992 aboveground construction of remediation <br /> Installed treatment system <br /> Groundwater August-September Completed underground and above- Quarterly Report, September 25, 1992 <br /> Extraction System 1992 ground construction of remediatlon <br /> Instailed treatment system. <br /> Site Remediation Se tember 14 1992 S stem startup <br /> Documented in quarterly reports. <br /> 42020273 CS <br />