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CSK Auto#4025 GeoTek Project No.:BC 122-4025 <br /> Tracy,California 95376 Page 2 of 5 <br /> March 7,2000 <br /> 1.0 INTRODUCTION <br /> GeoTek conducted a Phase II Environmental Site Assessment (ESA) that included <br /> subsurface soil sampling at the CSK Auto Store #4025 located at 1210 Tracy Boulevard <br /> in Tracy, California. This report documents the field investigation activities, laboratory <br /> analyses and evaluation of data relative to the, recognized environmental conditions <br /> investigated. <br /> 1.1 PROJECT BACKGROUND <br /> GeoTek prepared a Phase I ESA of the subject site dated February 4, 2000. The Phase I <br /> ESA identified environmental conditions suspect of causing contamination to soils at the <br /> subject site. Based on a review of the Phase I ESA, CSK authorized GeoTek to assess the <br /> following environmental conditions: <br /> • According to the service manager, Mr. Andy Castro, the second lift from the west was <br /> replaced. The reason and time of replacement were not reported to GeoTek. GeoTek <br /> recommended subsurface soil sampling of the second hydraulic lift from the west. <br /> • The facility currently utilizes a three-stage oil water separator to intercept rinse water <br /> from the service area. Since routine maintenance and integrity of the interceptor are <br /> not known, GeoTek recommended sampling subsurface soils adjacent to the separator <br /> inlet and outlet connections to determine if the subject site soils have been impacted <br /> by chemicals utilized at the subject site. <br /> 1.2 PURPOSE AND SCOPE <br /> The purpose of this Phase II ESA was to develop information regarding the potential <br /> presence of hazardous substances or petroleum products at the property with regard to the <br /> recognized environmental conditions discussed above. The investigation generally <br /> consisted of on-site testing soils for the potential presence of Petroleum Hydrocarbons in <br /> the immediate vicinity of the above-mentioned hydraulic lift and oil water separator. It <br /> should be noted that the groundwater was not encountered in any of the soil borings at the <br /> subject site. <br /> The Phase II ESA scope of work was developed as a result of the Phase I ESA findings <br /> along with our review and discussions with selected CSK personnel. <br />