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i <br /> ` SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> ............. <br /> i-ii <br /> Kaprealian Engineering, Inc. Client Project ID: Unocal, Stockton, Pacftic/Willora Sampled: Jan 1fi, 1990 ; <br /> P.O. Box 996 Matrix Descript: Soil Received: Jan 1fi, 1990 <br /> • Benicia, CA 94510 Analysis Method: EPA 5030/8015/8020 Analyzed: Jan 17, 1990 <br /> ;Attention: Mardo Kaprealian, P.E. First Sample#: 001-1744 A-B Re rted: Jan 18 1 <br /> r.nnrr........:................... i:::: i::ij :b:;•}:x-:::>ti,,i.'.::�:?'J::i'r <br /> ..., ii.:is::ii.::.:i.?:i.:_}:.i?ii::'n:. s:•:;:•:::::n::::r..::'-.............. <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (Ppm) (PPM) (Ppm) (Ppm) (Ppm) <br /> 0011744 A Composite 18 1.4 N.D. N.D. N.D. 0.15 <br /> 0011745 A Composite 19 1.7 N.D. N.D. N.D. N.D. <br /> 0011746 A Composite 20 N.D. N.D. N.D. N.D. N.D. <br /> 0011747 A Composite 21 1.2 N.D. N.D. N.D. N.D. <br /> 0011748 A Composite 22 2.7 N.D. N.D. N.D. N.D. <br /> 0011749 A Composite 23 1.7 N.D. N.D. N.D. N.D. <br /> 0011750 A Composite 24 24 N.D. N.D. N.D. N.D. <br /> Detection Limits: 1.0 0.05 0.1 0.1 0.1 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL <br /> 4oa C.Vega <br /> Manager 11744.KEI <1> <br />