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I <br /> AZ JfA <br /> Working To Restore Nature <br /> I <br /> 3164 Gold Camp Drive,Suite 200 <br /> Rancho Cordova,CA 95670 <br /> Phone (916) 852-6690 <br /> FAX (916) 852-6688 <br /> PRELIMINARY INVESTIGATION <br /> AND EVALUATION REPORT <br /> for <br /> ARCO Station No 6020 <br /> 1711 Yosemite Avenue <br /> Manteca, California <br /> For ARCO Products Company <br /> INTRODUCTION <br /> At the request of ARCO Products Company (ARCO), RESNA Industries (RESNA) <br /> conducted a subsurface investigation at the subject site The purpose of this investigation <br /> was to evaluate the extent of hydrocarbons that were identified in the soil during the initial <br /> subsurface investigation , and whether hydrocarbons have affected the ground water beneath <br /> the site. <br /> The work performed during this investigation included drilling six soil borings and <br /> constructing four groundwater monitoring wells, collecting soil and ground-water samples, <br /> and evaluating the ground-water flow direction and gradient This report summarizes the <br /> previous environmental work conducted at the site, describes the tasks performed during this <br /> investigation, includes the laboratory results, and presents our interpretations and <br /> conclusions <br /> 30055-5 <br />