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1 0 INTRODUCTION <br /> This report summarizes the results of activities outlined in the site characterization workplan for <br /> the Carnation Company lease portion of property owned by Chevron, U S A., Inc located at <br /> 540 North Aurora Way in Stockton, California (Figure 1) This assessment was requested by <br /> the San Joaquin County Public Health Services Environmental Health Division (SJCPHS) <br /> because preliminary investigation at the site indicates the presence of petroleum hydrocarbons <br /> ir, soil <br /> 2 0 SITE BACKGROUND <br /> The site is located on the northeast corner of Fremont and Oak Streets in Stockton, California <br /> The site is currently owned by Chevron U S A Inc The southeastern portion of the site is <br /> leased to the Carnation Company which has operated a distributorship for Carnation diary food <br /> products for over 35 years <br /> w The facility contained three underground product storage tanks which were used by the <br /> Carnation Company to provide fuel for six vehicles The facility dispensed leaded and diesel <br /> fuels from two 3,5Ct1-gallon and one 4,000-gallon underground product storage tanks The <br /> product storage tanks were located in the northeast corner of the Carnation facility (Figure 2). <br /> 9p No other maintenance activities were conducted onsite <br /> 3 0 PREVIOUS INVESTIGATIONS <br /> In 1987, all three undergrotin4 product storage tanks, dispenser, and product lines, were <br /> removed Backfill material within the former tank pit was excavated and r.-moved Following <br /> storage tank removal, Canome Environmental collected soil samples beneath each tank (Figure <br /> 2) Based on the results of the analyses conducted during the initial investigation, the site was <br /> approved "closed" by the SIMS without further remedial activities Due to a recent change <br /> to regulatory requirements for lead, the soils beneath two of the tanks potentially exceeded <br /> current regulatory levels of 13 mg/kg for organic lead and further investigation of soils was <br /> required by SJCPHS <br /> EU-USA W 767 <br /> CSR07%1 <br />