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� 680Sequoia °Chesapeake Drive Redwood City CA 94063 (650)364 9600 FAX{650}364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988 9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)92 1-0 100 <br /> Analytical 1455 McDowell Blvd [North Ste D Petaluma CA 94954 (707) 79Z 1865 FAX(707)792-0342 <br /> t 551 Industrial Road San Carlos CA 94070 41 11 (650)232 9600 FAX(650)232 9612 <br /> Pinnacle Client Project ID Arco #6020, Manteca Sampled Apr 30, 1999 <br /> 939 Cambridge Road Sample Matrix Sod Received Apr 30, 1999 <br /> Cameron Park, CA 95682 Analysis Method EPA 5030/8015 Mod /8020 Reported May 5, 1999 <br /> mCnention <br /> Joel Coffman First Sample # 905-0030 <br /> Batch Number SP050499 SP050499 SPOS0499 SP050499 SP050499 SP050499 <br /> 8020EXA 8020EXA 8020EXA 8020EXA 8020EXA 8020EXA <br />' TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D I D <br /> mg/kg 905-0030 905-0031 905-0032 905-0033 905-0034 905-0035 <br /> D-1 (2 5') D-2 (2 5') D-3 (2 5) D-4 (2 5') D-5 (2 5') D-6 (2 5') <br /> Purgeable <br /> Hydrocarbons 10 N D N D 150 N D 36 1,000 <br /> Benzene 00050 N D N D N D N D N D 12 <br />' Toluene 00050 N D N D N D N D N D 79 <br /> Ethyl Benzene 00050 N D N D 054 N D N D 20 <br /> Total Xylenes 00050 0 013 N D 056 N D 018 200 <br /> Chromatogram Pattern -- -- Gasoline - Unidentified Gasoline <br /> Hydrocarbons <br /> >C8 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 100 1 0 10 100 <br /> Date Analyzed 5/4/99 5/4/99 5/4/99 5/4/99 5/5/99 5/4/99 <br /> Instrument Identification HP-4 HP-4 HP-4 HP-4 HP-5 HP-4 <br /> Surrogate Recovery, % 103 109 * 99 99 <br /> (OC Limits = 40-140°x) <br /> turgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> t�1AY 141999 <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> IVEIQIUOIA ANALYTICAL, #1271 Ptease Note <br /> *Surrogate Recovery was below detection limit due to sample dilution <br /> Melissa A Brewer <br /> Project Manager <br /> 9050030 PPP <I 7 <br />