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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364-9600 FAX (415) 364-9233 <br /> 1900 laces Avenue Suite L Concord CA 94520 (510) 686-9600 FAX(510) 686-9689 <br /> Analytical 815 Striker Avenue Suite 8 Sacramento CA 95834 {916) 921 9600 FAX (916) 921-0100 <br /> Fugro West, Inc Client Project ID Shell, 2575 Country Club, Stockton CA Sampled May 4, 1995 <br /> 1050 Melody Lane, Ste 160 Sample Matrix Sod Received May 5, 1995 <br /> Roseville, CA 95678 Analysis Method EPA 5030/8015/8020 Reported May 18, 1995 <br /> Attention Sudhakar Talanki First Sample # 505-0337 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I D I D 1 D I D. <br /> mg/kg 505-0337 505-0338 505-0339 505-0340 <br /> EX6-14 EX7-114 EX8-13 5 EX9-114 5 <br /> Purgea6le <br /> Hydrocarbons 10 1,800 2,800 8,000 17,000 <br /> Benzene 00050 20 37 130 240 <br /> Toluene 00050 68 150 430 1,100 <br /> Ethyl Benzene 00050 26 45 140 280 <br />• Total Xylenes 00050 140 240 660 1,400 <br /> Chromatogram Pattern C6-C12 C6-C12 C6 C12 C6-C12 <br /> Qualrty Control Data <br /> Report Limit Multiplication Factor 500 500 500 5,000 <br /> Date Analyzed 5/15/95 5/15/95 5/15/95 5/16/95 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 102 98 115 86 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N b were not detected at or above the reporting limit <br /> •SEQUOIA ANALYTICAL, FLAP #1624 <br /> Linda C Schneider <br /> Project Manager <br /> 54354331 FUG <2> <br />