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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM Concord,California 94520 <br /> (510)686.9066 FAX 1510}666-9689 <br /> SamSep 9, 1991 <br /> Kaprealian Engineering.Inc. Client Project ID: Unocal/Lodi,601 E.Kettleman Ln. Received: <br /> ee ived Sep g 1991 <br /> Matrix Descript: Water <br /> P.O.Box 996 Analyzed: Sep 13, 1991 <br /> Benicia,CA 94510 Analysis Method: EPA 5030/8015/8020 Reported: Sep 24, 1991 <br /> ..Attention: Mardo Kaprealian,P.E. First Sample#: 109-0810 <br /> S with BTEX DISTINCTION (EFA 8015/8020) <br /> TOTAL PETROLEUM FUEL HYDROCARBON <br /> Sample Sample Low/Medium B.P. <br /> Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> pg/L ug/L pg/L pg/L ug/L <br /> (ppb) (ppb) (Ppb) (ppb) (ppb) <br /> 1013-0610 MNJ•1 <br /> 660 96 5.9 N.D. 65 <br /> 109.0811 MW-2 <br /> 240 13 N.D. 0.57 8.4 <br /> 109-0812 h1W-3 N.D. 0.49 N.D. N.D. 0.79 <br /> 30 0.30 0.30 0.30 0.30 <br /> Detection Limits: <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Anatoes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL <br /> Belinda C.Vega <br /> Laboratory Director <br />