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EMCOIM Associates <br /> 1921 Ringwood Avenue • San Jose California 951 31-1 721 • (408)453-7300 • Fax(408)437-9526 <br /> December 21, 1994 <br /> Project 2074-00101 <br /> ' Binayak Acharya <br /> Nestle USA, Inc <br /> 800 North Brand Boulevard <br /> Glendale, California 91203 <br /> Re Soil and groundwater characterization, East Fremont Street, Stockton, California <br />' Dear Mr Acharya <br />' This letter presents the soil and groundwater characterization conducted by EMCON <br /> Associates (EMCON) at the former Nestle USA, Inc (Nestle) Distribution Center at <br /> 4343 East Fremont Street in Stockton, California (Figure 1) Two soil borings were <br />' drilled during tins investigation for the purpose of collecting soil samples One of the <br /> borings was converted to a groundwater monitoring well The work was performed <br /> consistent with the recommendations in a workplan, which was approved by San Joaquin <br /> County Public Health Services on November 3, 1994 This report discusses the field <br /> activities, soil and groundwater conditions, laboratory analyses, and conclusions <br />' BACKGROUND <br /> An oil/water separator was removed from the site in June 1986 Three soil samples <br />' collected from the excavated soil contained petroleum hydrocarbons and chlorinated <br /> solvents, had concentrations up to 2,200 milligrams per kilogram (mg/kg)total petroleum <br /> hydrocarbons (TPH), 11 mg/kg 1,3-dichlorobenzene (DCB), and 0 47 mg/kg <br />' tetrachloroethene (PCE) Based on these results, the SJCPHS indicated that further site <br /> assessment would be required to determine the nature and extent of the soil and any <br />' groundwater contamination <br /> FIELD ACTIVITIES <br /> iOn November 16 and 17, 1994, two borings (MW-1 and B-1), shown on Figure 2, were <br /> drilled using 8-inch-diameter hollow-stern auger drilling equipment. Borings MW-1 and <br /> 13-1 were drilled to depths of 98 and 315 feet below ground surface (BGS), respectively <br /> Soil samples were collected at 5-foot intervals for material description Soil samples were <br /> logged by an EMCON geologist using the Unified Soil Classification System Soil <br /> samples were field-screened for petroleum hydrocarbons using a photo-ionization detector <br /> (PID) Soil samples collected at depths of approximately 10, 15, 20, 25, and 30 feet BGS <br /> ESJ/i 1PJ2120740010 IAX-94 ljt 2 <br />