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. Additional Site Assessment Work Plan <br /> PLAZA LIQUORS H <br /> 2420 West Turner Road, Lodi, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr Robert McCarty,Advanced Geo Environmental, Inc (AGE) has prepared this <br /> work plan for investigation of the Plaza Liquors II site located at 2420 West Turner Road, Lodi, <br /> California The purpose of the additional site assessment is to define the lateral and vertical extent <br /> of impacted ground water and the vertical extent of impacted soil This work plan provides the scope <br /> ofwork and procedures for advancement of cone penetrometer testing(CPT)soil borings, collection <br /> of soil and groundwater samples, laboratory analysis of samples, monitoring well installation, and <br /> soil boring abandonment The location of the site is illustrated on Figure 1 A plan of the site is <br /> illustrated on Figure 2 <br /> This work plan has been prepared in accordance with the Regional Water Quality Control Board's <br /> Tri-Regional Board Staff Recommendations for Preliminary Evaluation and .Investigation of <br /> Underground Tank Sites guidelines for the investigation of underground storage tank (UST) sites <br /> • 2.0. BACKGROUND <br /> In April 1997 four USTs were removed from the site and in June 1997, the original tank pit was <br /> overexcavated to a depth of 22 feet below surface grade (bsg) In March 2001, four ground water <br /> monitoring wells (MW1 through MW4) were installed at the site Background information and <br /> results of the previous investigations can be fmmd in the AGE-prepared docurnents Prelim.,nary Site <br /> Assessment Work Plan, dated 19 November 1999 and Quarterly Report-First Quarter 2000,dated <br /> 07 June 2000 Soil and ground water analytical data from the previous investigations can be found <br /> In Tables 1 through 4 Cross-sections depicting the general lithology and the approximate <br /> distribution of contaminants in the soil beneath the site are illustrated on Figures 3 and 4 Maps <br /> depicting the approximate distribution of dissolved TPH-g, benzene and MTBE are illustrated on <br /> Figures 5, 5 and 7 <br /> The vertical extent of Impacted soil and ground water has not been defined and the lateral extent of <br /> impacted ground water has not been defined in any direction The lateral extent of impacted soil has <br /> been defined in all directions <br /> 3.0. SCOPE OF WORK <br /> Based on analytical data from previous investigations at the site, additional soil and ground water <br /> investigation is necessary to define the lateral and vertical extent of impacted ground water and the <br /> vertical extent of impacted soil <br /> Advanced GeoEnvironmentai,Inc <br />