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Sequoia <br />a <br />680 Chesapeake Drive <br />Redwood City, CA 94063 (650) 364-9600 <br />CA 94598 (925) 988-9600 <br />FAX (650) 364 9233 <br />FAX (925) 988-9673 <br />HP -4 HP -4 HP -4 HP -4 <br />404 N Wiget lane <br />Walnut Creek, <br />95 <br />-)Analytical <br />1 <br />A rra y l} 1Caj <br />819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921-9600 <br />1455 McDowell Blvd North Ste D Petaluma CA 94954a65 <br />FAX (916) 921-0100 <br />FAX(707)792-034Z <br />Oettler-Ryan <br />-Dublln <br />ClientPro ectID <br />Chevron #9-57 lUam led <br />Aug 24, 1998 <br />6747 Sierra Court, Suite J <br />Dublin, CA 94568 <br />Sample Matrix <br />Analysis Method <br />Soil Received <br />EPA 5030/8015 Mod /83p 0 Reported <br />Aug 24, 1998 <br />Aug 26, 1998 <br />Attention Greg A Gurss <br />First Sample # <br />808-2208 <br />STT i.ER-YAN INC. <br />TOTAL PURGEABLE PETROLEUM HYDROCARBQ��WkthdUEXiDItpif4CTION <br />Reporting <br />Sample <br />Sample Sample Sample Sample <br />Sample <br />Analyte Limit <br />I D <br />I D I D I D I D <br />I D <br />mg/kg <br />808-2208 <br />808-2209 808-2210 808-2211 808-2212 <br />808-2213 <br />i <br />A1(14 5) <br />A2(14 5) B1(14 5) B1(16) B2(14 5) <br />01(14 5) <br />Purgeable <br />Hydrocarbons 1 0 <br />11 <br />N D 14,000 880 N D <br />N D <br />Benzene 00050 <br />013 <br />N D 84 N D 00089 <br />N D <br />Toluene 00050 <br />2 0 <br />0 025 1,500 52 0 088 <br />00086 <br />Ethyl Benzene 00050 <br />076 <br />00069 570 22 0 031 <br />00080 <br />• Total Xylenes 00050 45 0 081 3,300 140 0 015 0 030 <br />Chromatogram Pattern Gasoline -- Gasoline Gasoline - <br />Naltty Control Data <br />Report Limit Multiplication Factor 10 <br />Date Analyzed 8/25/98 <br />Instrument Identification HP -4 <br />Surrogate Recovery, % 125 <br />(QC Limits = 40-140%) <br />1 0 500 100 1 0 <br />10 <br />8/25/98 8/25/98 8/25/98 8/25/98 <br />8/25/98 <br />HP -4 HP -4 HP -4 HP -4 <br />HP -4 <br />84 * * 89 <br />95 <br />Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br />Analytes reported as N D were not detected above the stated reporting limit <br />SEQUOIA ANALYTICAL, #1271 <br />*)'►,iiA�bvv� . <br />u Fegley <br />Project Manager <br />Please Note <br />* Surrogate recovery below detection limit due to dilution <br />8082248 GET <1 > <br />