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l.- n <br /> M <br /> b-Y <br /> J. H. KLEINFELDER&ASSOCIATES <br /> File; W-2006-1 <br /> r December 16, 19a5 <br /> Page 2 <br /> — gallon underground fuel storage tank was used to fuel trucks <br /> and other vehicles during business operations. Use of the <br /> tank was discontinued two years ago and the tank was excavated <br /> last spring. The excavation area is shown on Plate 2. In a <br /> previous investigation, sail samples were collected from two <br /> backhoe test pits to the west of the excavated area. <br /> Analytical results of the samples showed the <br />�^- lepresence of <br /> gasoline related constituents in the soil around the <br /> -` excavation pit. On April 29, 1985, a ground water sample was <br /> collected from the on--site production wells and analyzed for <br /> EPA 601 compounds (chlorinated hydrocarbons) and EPA 602 <br /> — compounds (aromatic hydrocarbons). Low concentrations of <br /> benzene, toluene, and xylene were detected in the first set of <br /> ground water samples. <br /> TII. PUP-POSE <br /> Guild Wineries and Distilleries contracted J. <br /> Kleinfelder & Associates to initiate a soil and ground water <br /> investigation. The scope of work included: <br /> o Installing four new ground seater monitoring wells. <br /> o Surveying well heads and determining the local ground <br /> water gradient under existing conditions. <br /> — o Developing and sampling the monitoring wells. <br /> a Ctsnducting a pump test utilizing the nearby production <br /> well to assess the effect it may have had on the local <br /> shallow ground water gradient. <br /> arm <br />