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Preliminary Site Assessment Work Plan <br /> McBILLIN REAL ESTATE INVESTMENT <br /> 2154 South EI Dorado Street, Stockton , California <br /> 1 .0 . INTRODUCTION <br /> At the request of Mr. Min Le, Advanced Geo Environmental , Inc. (AGE ) has prepared this <br /> Preliminary Site Assessment Work Plan for the McBillin Real Estate Investment property, <br /> located at 2154 South EI Dorado Street, Stockton , California (site ).This Work Plan provides <br /> a description of the scope of work and procedures to be used for soil boring advancement, <br /> monitoring well installation , soil and groundwater sample collection and analysis and boring <br /> abandonment. This plan was prepared in accordance with Central Valley Regional Water <br /> Quality Control Board (CVRWQCB) guidelines forthe investigation of underground storage <br /> tank (UST) sites . <br /> This Work Plan has been prepared as required by the San Joaquin County Environmental <br /> Health Department (SJCEHD) letter, dated 25 April 2011 (Appendix A) . The SJCEHD has <br /> required this investigation to assess the lateral and vertical extent of petroleum <br /> hydrocarbon impact to soil and groundwater at the site . The location of the site is <br /> presented on Figure 1 and a plan of the site with proposed soil boring locations is <br /> presented on Figure 2 . <br /> 2.0. SCOPE OF WORK <br /> Based on analytical data collected during underground storage tank removals at the site <br /> (Appendix B) , additional soil and groundwater investigation has been directed by the <br /> SJCEHD to define the lateral and vertical extent of hydrocarbon -impacted soil and <br /> groundwater. The proposed scope ofworkwill be performed in several phases (direct push <br /> soil and ground investigation ; lateral soil and groundwater investigation ; and monitoring <br /> well installations) . The following basic tasks are included : <br /> • Permitting and pre-field work activities . <br /> • Advancement of soil borings for collection of soil and grab groundwater samples. <br /> • Advancement of additional borings to define the lateral extent of adsorbed and <br /> dissolved phase contaminants. This scope of work will be performed if significant <br /> impact is encountered during the initial phase of the investigation . <br /> • Monitoring well installation . <br /> • Well development and elevation survey. <br /> • Report preparation . <br /> Each of these tasks is described in greater detail below. <br /> q <br />� AdvanceAGeoEnvironmental, Inc. <br /> 9 <br />