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Del Monte Foods <br /> One Mark6t <br /> P.O. Box 193575 -93 PI-1 12: 51 <br /> San Francisco, CA 94119-3575 stf, e nzone <br /> 40en P.Ro <br /> IL, <br /> Telephone: (415)247-3000 Db r-jector/Real Estate&Facilities <br /> (41,6)247-3520(Direct) <br /> f f (IJ5)247-3540(Facsimile) <br /> August 17, 1999 4 <br /> L <br /> 4 <br /> Ronald Rowe <br /> San Joaquin County Public Health Services <br /> LOP/ Site Mitigation Unit t-4 C&jw1)a'A <br /> Environmental Health Division <br /> 304 E. Weber Ave., Third Floor <br /> Stockton, CA 95202 4 <br /> Re: Disco Site, 110 Filbert Street, Stockton, CA 501q"OIL44- � <br /> Additional Site Characterization Work Plan <br /> Dear Ron: <br /> Attached is a work plan for additional site characterization for the Disco site. This work plan <br /> will focus on defining the vertical extent of petroleum constituents in 14roundwater beneath the <br /> r former tank and pump area, and the downgradient lateral extent of po.troleum constituents in <br /> groundwater. In addition, detailed lithologic information will pe obtained by Cone <br /> t <br /> Penetrometer Testing (CPT) to increase our understanding of the hydrogeology beneath the <br /> site. Results of this field investigation will be used to determine the appropriate next step for <br /> additional site activities. <br /> As recommended, this work plan has been prepared following guidelines outlined in <br /> Recommendations for Preliminary Investigation and Evaluation of Underground Tank Sites, <br /> Appendix A, prepared by the Central Valley Regional Water Quality Control Board <br /> (CVRWQCB). <br /> In support of initiating fieldwork, we would appreciate review and approval of this work plan <br /> by September 15, 1999. Thank you for your assistance. <br /> Best regards, <br /> Steven P. Ronzone <br /> cc: Margaret Lagorio/ SFC-PHS Liz Dodge/ CH2M HILL <br /> Mark List/ CVRWQC13 Keith Sheetz/CH2M HILL <br /> Jim Munch/ SWRCB /USTCF David Irey/ SIC District Attorneys Office <br /> Richard Fish/Del Monte Nancy Bice Geosyntex Consultants <br /> Susan Flieder/Del Monte <br /> • RE\Stockton#33\PHS Rowe Ltr Workplan <br />