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YY' 3i <br /> 6 <br /> SfiE ASSESSMENT irlOtiffDAHG WELL <br /> INSFALLATXM RESULTS Fir <br /> 420 W.Kanleman.L04i.Caldorna <br /> 1.0 INTRODUCTION <br /> nductef:w <br /> on 3 arid 4 October <br /> This report presents theEnvironmental, �nc. at thef the site nShellgService Station dloca ed at 424 West <br /> 1990, by Aegis on co <br /> Environ , <br /> Kettleman Lane in Lodi (San J Joaquin o ) <br /> a <br /> conducted in response to request the San California(Figure <br /> County Public Health aServices <br /> (SJCPHS)following the submittal of the"Pre-Tank Replacement Site Assessment Results <br /> Report" (Aegis, October 1989). <br /> ,.., <br /> 1.1 Purpose <br /> The purpose of the investigation was to: <br /> rdro eologic conditions; <br /> o Further characterize the site's subsurface and by g <br /> o Assess the presence of petroleum hydrocarbons, if any, in the soil and ground <br /> water beneath the site; and, <br /> ' 1.2 Sco e <br /> f The scope of work conducted during the assessment-is summarized below, and was <br /> thods presented in Appendix A. <br /> performed according to me <br /> p A total of three 10-inch diameter soil borings were drilled to depths ranging from <br /> ►_s 65 feet to 70 feet below grade (bg). <br /> :. <br /> o Soil samples were collected from the borings <br /> aosspiaple chemicalanalysis,analysis vertical <br /> The <br /> t ` intervals for subsurface characterize p <br /> samples were described according to the Unified Soil Classification System and <br /> logged on field data sheets. <br /> o The samples were screened for the presence of organic vapors using a portable <br /> photoionization detector(PID). The highest PIDreading from each fve6foot sample <br /> interval was recorded on the soil boring logs attached in Appendix <br /> i <br />