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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX (650) 364 9233 <br />404 N Wiget Lane Walnut Creek, CA 94598 (9Z5)9U65 <br />00 FAX (925) 988-9673 <br />a -Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 ( 100 FAX (916) 921-0100 <br />wr1455 McDowell Blvd North Ste D Petaluma CA 94954 U FAX (707) 792-0342 <br />tettler-Ryan -Dublin Client Pro 1ect ID Chevron #9-5775 keived mpfed Aug 24, 1998 <br />747 Sierra Court, Suite ,1 Sampie Matrix Sod ��Aug 24 1998 <br />Dublin, CA 94568 Analysis Method EPA 5030/8015 Mod /802 0� Rep Aug Aug 26, 1998 <br />Attention Greg A Gurss First Sample # 808-2195 ��.�� t <br />�" 5 <br />TOTAL PURGEABLE PETROLEUM HYDROCARBOke4 tq BT6 ISTINCTION <br />r <br />4 <br />Reporting Sample <br />Analyte Limit I D <br />mg/kg 808-2195 <br />SPFT <br />Purgeable <br />Hydrocarbons 10 1,400 <br />Benzene <br />00050 <br />1 5 <br />Toluene <br />00050 <br />84 <br />Ethyl Benzene <br />00050 <br />46 <br />• Total Xylenes <br />00050 <br />280 <br />Chromatogram Pattern Gasoline <br />Quality Control Data <br />Report Limit Multiplication Factor 100 <br />Date Analyzed 8/25/98 <br />Instrument Identification HP -5 <br />Surrogate Recovery, % <br />(QC Limits = 40-140%) <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 />tullanne Fegley <br />Project Manager <br />Please Note <br />* Surrogate recovery below detection limit due to dilution <br />8082195 GET < 17 <br />