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41) <br /> Sequoia 680 Chesapcakt: Drivc Rcdkood Gtr CA 94063 (415) 3u4 9600 FAN (415) 364 9233 <br /> 404 N W get Lane V:alnut Creel, CA 94598 {530) 988 9600 FAX (510)988 9673 <br /> 140 Analytical 819 Sinker Avenue Suitc 8 Sacramcnto CA 95833 r9,6) <br /> !I Pacific Environmental Environmental Group, Inc Client Project ID Unocal 2859, Stockton, CA { ''Sampled Aug 29,- <br /> 02025 Gateway Place, Suite 440 Sample Matrix Air LIReceived Aug 2 PI <br /> San Jose, CA 95110 Analysis Method EPA 5030/8015/8020 eparted --Se <br /> Attention Rhonda DeJung First Sample # 608-1166 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D l D <br /> pg/L 6D8-1166 608-1167 <br /> iNFL EFFL <br /> Purgeable <br /> Hydrocarbons 50 2,400 560 <br /> Benzene 0 050 12 4 0 <br /> Toluene 0 050 63 10 <br /> Ethyl Benzene 0 050 37 92 <br /> Total Xylenes 0 050 300 89 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-c112 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 25 5 0 <br /> Date Analyzed 08/29/96 08/30/96 <br /> Instrument Identification GCHP-7 GCHP-7 <br /> Surrogate Recovery, % 121 126 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP#1624 <br /> 1 <br /> inda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 6081166 PEG <1> <br />