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INTERIM 1VORK PLAN <br />• Top Filling Station <br /> 101 S. Wilson Way <br /> Stockton, California <br /> 26 May 1995 <br /> 1.0. INTRODUCTION <br /> In accordance with the request of \1r Ed Endich of Top Filling Station, Advanced <br /> GeoEnviloiimental, Inc (AGE) has piepaied this Interim \Voile Plan for tine drilling and <br /> installation of additional monitoring and remediation wells at 101 S Wilson Way in <br /> Stockton, California (Figure 1 - Location Map) <br /> The proposed installation of additional wells is a continuation of site characterization <br /> performed in December 1994 and January 1995 and in response to recomnrendations <br /> included in a letter from the San Joaquin County Public Health Ser�rces - Environmental <br /> Health Division (PHS-EHD) dated 2 May 1995 A plan of the site is shown on Figure 2 <br /> 20. BACKGROUND <br /> Three monitor ing wells and sr% soil boi inns were installed at the site in December 1994 and <br /> January 1995 by Geological Audit Ser ices, Inc (GeoAudrt) Ground water samples \\ere <br /> collected from each well Details of the imestiaation are included in a Preliminary <br /> Investigation and Evaluation Repoit (PIER), dated~10 Apid 1995 <br /> The ground water gradient (calculated by GeoAudrt) for Januai), 1995 was recalculated by <br /> AGE A revised ground eater aiadierrt inial) is included rn this lirteiiiii 1N'oik Plan as Figure <br /> 3 Tire revised ground water flow direction is S 490 E <br /> AGE performed quarterly ground v atei monitoring procedures in April 1995 The ground <br /> water flow direction was calculated to be S 60° E, confirming the revised January 1995 flow <br /> direction A Quarterly Report foi May 1995 is currently being prepared by AGE <br /> 3 0. SCOPE OF WORK <br /> AGE proposes drilling five additional soil borings at the site to continue the assessment of <br /> the impacted soil and groundwater Thiee borings will be completed as ground water <br /> monitoring wells and two borings will be completed as remediation wells (as recommended / <br /> by Ms Linda Turkatte of the PHS-EHD) The remediation wells will be completed withV/ <br /> slotted PVC screen throughout the entire depth of impacted soil These wells will later be <br />. utilized for feasibility studies and possible iemediation <br />