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4 <br />Sequoia <br />Analytical <br />680 Chesapeake Drive Redwood City CA 94063 <br />404 N Wiget Lane Walnut Creek. CA 94598 <br />819 Striker Avenue Suite 8 Sacramento CA 95834 <br />1455 McDowell Blvd North Ste D Petaluma CA 94954 <br />(650) 364-9600 <br />(925) 988-%00 <br />(916) 921-9600 <br />(707) 792-1865 <br />FAX(650)364-9233 <br />FAX (925) 988-9673 <br />FAX (916) 921-0100 <br />FAX (707) 791-0341 <br />Oettler-Ryan - Dublin <br />6747 Sierra Court, Suite J <br />Client Project ID <br />Sample Matrix <br />Chevron #9-5775, Lodi <br />Sod <br />Sampled <br />Received <br />Aug 24, 1998 <br />Aug 24, 1998 <br />Dublin, CA 94568 <br />Analysis Method <br />EPA 5030/8015 Mod /8020 <br />Reported <br />Aug 26, 1998 <br />Attention Greg A Gurss <br />First Sample # <br />808-2220 <br />TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />Quality Control Data <br />Report Limit Multiplication Factor 10 1 0 <br />Date Analyzed 8/25/98 8/25/98 <br />Instrument Identification HP -4 HP -4 <br />Surrogate Recovery, % 94 94 <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 />Ju Janne Fegley <br />Project Manager <br />8082208 GET <3> <br />Reporting <br />Sample <br />Sample <br />Analyte <br />Limit <br />I D <br />I D <br />mg/kg <br />808-2220 <br />808-2221 <br />W01(9) <br />W02(9) <br />Purgeable <br />Hydrocarbons <br />1 0 <br />N D <br />N D <br />Benzene <br />00050 <br />N D <br />N D <br />Toluene <br />00050 <br />N D <br />00088 <br />Ethyl Benzene <br />00050 <br />N D <br />N D <br />Total Xylenes <br />00050 <br />00082 <br />0 041 <br />Chromatogram Pattern <br />Quality Control Data <br />Report Limit Multiplication Factor 10 1 0 <br />Date Analyzed 8/25/98 8/25/98 <br />Instrument Identification HP -4 HP -4 <br />Surrogate Recovery, % 94 94 <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 />Ju Janne Fegley <br />Project Manager <br />8082208 GET <3> <br />