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SEQUOIA ANALYTICAL. <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> Kaprealian Engineering, Inc. Client Project ID: Unocal, 3788 Tracy Blvd.,Tracy Sampled: Jun 18, 1990 ;; <br /> iP.O. Box 996 Matrix Descript: Soil,W.O.1 Received: Jun 19, 1990"l <br /> Benicia, CA 94510 Analysis Method: EPA 5030/8020 Analyzed: Jun,20, 19904::; <br /> Attention Mardo Kapreallan P E First Sample # 006-2687 Reported Jun€20 1990 <br /> BTEX DISTINCTION (EPA 8020) <br /> Sample Sample Ethyl <br /> Number Description Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg <br /> (ppm) (ppm) (ppm) (ppm) <br /> 006-2687 W.0.1 0.66 0.58 1.9 5.1 <br /> r <br /> j <br /> t <br /> I <br /> Detection Limits: 0.0050 0.0050 0.0050 0.0050 <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> i <br /> SEQUOIA ANALYTICAL <br /> Belinda C.Vega <br /> Project Manager 62687.KEl <3> <br />