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i <br /> Additional Site Assessment Report - October 2003 <br /> • PACIFIC PRIDE - WEST LANE <br /> I3430 North West Lane, Stockton, California <br /> 10. INTRODUCTION <br /> At the request of Mr David Atwater of Van De Pol Enterprises Inc ,Advanced GeoEnvironmental, <br /> Inc (AGE) has prepared this Additional Site Assessment Report for 3230 North West Lane (site), <br /> Stockton , California The scope of work for this investigation Included advancement of five soil <br />' borings (P-8 through P-12)to collect soil samples and one grab ground water sample for laboratory <br /> analysis, with the objective of characterizing subsurface impact of petroleum hydrocarbons The <br /> location of the site is illustrated in Figure 1, general features at the site are illustrated in Figure 2 <br /> The enclosed report was prepared in accordance with guidelines established by the California <br /> Regional Water Quality Control Board(CRWQCB) for Investigation of underground storage tank <br />' (UST) sites Background Information and a description of prior investigations at the site were <br /> included in Preliminary Investigation &Evaluation Report, dated 11 November 1999 <br /> The following is a chronology of this investigation <br /> • 09 October 2003 -Advancement of soil bonngs P-8 and P-10 to maximum depths of 50 feet <br />� . below surface grade(bsg) and P-9 to 65 feet bsg, soil samples were collected at every 5-foot <br /> interval, and a grab water sample was collected from P-9 at a depth between 65 and 68 feet <br /> bsg <br />' • 10 October 2003 -Advancement of two soil borings(P-11 and P-12)to maximum depths of <br /> 50 feet below surface grade, soil samples were collected every five feet <br /> I <br /> 2.0. PROCEDURES <br /> I 12 <br /> On 09 and 10 October 2003, five soil borings (P-8 through P-1were advanced at the site as part <br /> of site characterization and assessment activities related to the former USTs The field work was <br /> conducted as outlined in the SJCEHD-approved work plan dated 03 July 2003 <br /> 21 DRILLING ACTIVITIES <br /> Soil borings P-8,and P-10 through P-12 were advanced vertically to maximum depths of 50 feet bsg, <br /> soil boring P-9 was advanced vertically to a depth of 68 feet bsg The soil borings were advanced <br /> utilizing a CME-75 high torque,truck-mounted drill ng equipped with 8-inch diameter hollow-stem <br /> augers Soil cuttings were stockpiled on and covered by plastic sheeting at the site, the soil boring <br /> locations are depicted in Figure 2 <br /> Advanced GeoEnvironmental,Inc <br />