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si <br /> H. KLEINFELDER &ASSOCIATES <br /> File: W-2006-1 <br /> March 18, 1986 <br /> Page 3 <br /> adjacent to the tank excavation area. The central valley Regional <br /> Water Quality control Board and the San Joaquin Department of <br /> Health required Guild Wineries and Distilleries to assess the <br /> extent of hydrocarbon migration in the soil around the tank <br /> excavation area before work on the proposed champagne tank <br /> foundation could begin. The scope of work included: <br /> o Placing ten soil borings along five radial lines away from <br /> -- the tank excavation area, qualitatively screening the soil <br /> samples using a Photovac photoionization detector (PID), <br /> w. <br /> and performing quantitative chemical analyses on selected <br /> 1 samples. <br /> o Placing two additional soil borings along the eastern edge <br /> of the proposed champagne tans: foundation and performing <br /> quantitative chemical analyses on selected samples on a <br /> rush turnaround basis. <br /> o Evaluating the data gathered during the investigation and <br /> recommending appropriate remedial measures for further <br /> �- evaluation and/or follow-up assessment work as warranted, <br /> !, T-V. FIELD ACTIVITIES <br /> A. Soil Boring <br /> A total of twelve soil borings (B-5 through B-is) were <br /> d. drilled from July 4, 1986 to July 10, 1986. At the time of <br /> drilling, the depth to ground water in Monitoring Well MW--1 was <br /> 31.72 feet from the top of the casing. The twelve soil borings <br />