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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX{415} 364 9233 <br /> Analytical <br /> 1900 Sates Avenue Suite L Concord,CA 94520 (510) 686 9600 FAX (510)686 9689 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OebStrategles Inc Client Project ID Unocal 7$27 03 ` Sampled ' Jul 7, 1004 r <br /> 3035 Prospect Park Dr, Suite 80 Sample Matrix Soil Received Jul 11, 1994nZ <br /> Rancho Cordova, CA 95670 Analysis Method BPA 5030/8015/8020 Reported Jul 26, 1994 <br /> Attention Steve Carter First Sample # 407-0362 <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 l D I D I D. <br /> mg/kg 407-0362 4070363* 407-0364 407-0365 407-0367 407-0368 <br /> U1-46 5 U2-15 5 1.12-30 5 U2-45 5 U3-26 5 1.13-36 5 <br /> Purgeable <br /> Hydrocarbons 1 0 N D - N D N D 6 3 N D <br /> Benzene 00050 N D - N D 0 018 N D N D <br /> Toluene 00050 N D - N D N D 0 017 N D <br /> Ethyl Benzene 00050 N D - N D 00051 0 01 3 00077 <br /> Total Xylenes 00050 N D - N D 0 030 0 039 00071 <br /> Chromatogram Pattern -- -- Gasoline Gasoline Gasoline <br /> C6-C12 C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 1 0 1 0 <br /> Date Analyzed 7/20/94 -- 7/21/94 7/21/94 7/20/94 7/20/94 <br /> Instrument Identification HP-1 -- HP-1 HP-1 HP-1 HP-1 <br /> Surrogate Recovery, % 97 N D 90 82 103 87 <br /> (OC Limits = 70-130%) <br /> Purgeabie 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 Please Note <br /> LAP #1624 *Could not locate sample 4070363 as per discussion with Steve Carter on July 22, 1994 <br /> C/1 Cti L' [ I–A—r- <br /> Craig C Lee <br /> Project Manager <br /> 4070362 GSI <1> <br />