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I <br /> �. H. KLEINFELDER&ASSOCIATES <br /> �.N <br /> I <br /> 2 BACKGROUND <br /> R --.---------------------.--...--. -------- ------------- <br /> The Guild Winery facility is located at 1 Winemasters 'Way in the <br /> City of Lodi, as shown on Plate No. 1. An on—site 500 gallon <br /> underground fuel storage tank was used to fuel trucks and other <br /> vehicles during business operations . Use of the tank was <br /> discontinued and the tank was excavated. The excavation area is <br /> shown on Plate No. 2. In a previous investigation, soil samples <br /> indicated the presence of gasoline related constituents in the <br /> - soil around the excavation pit. On April 29; 1985, a ground <br /> water sample was collected from the on—site production well and <br /> analyzed for EPA 601 compounds (chlorinated hydrocarbons) and EPA <br /> 602 compounds (aromatic hydrocarbons). Low concentrations of <br /> benzene, toluene, and xylene were detected in the first set of <br /> ground water samples . <br /> A total of eight soil borings were drilled from July 23 to July <br /> 26, 1985. Monitoring wells MW-1 through MW-4 were installed in <br /> Ea four of the soil borings, and soil samples were collected from <br /> the other four borings . Data obtained from PIA field readings <br /> ! ` and analytical results of soil and ground water samples showed <br /> the presence of hydrocarbons below the tank excavation area. <br /> Results of this investigation are described in JHK&A's "Soil and <br /> Ground Water Assessment Report" dated December 16, 1985. <br /> 3. <br /> 19: 531 2 <br />