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1 <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)9B8-9600 FAX(925)988-9673 <br /> 119 Stryker Avenue Su€te 8 Sacramento CA 95834 (916)921 9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707)79z-0342 <br /> ATC Associates, Inc Client Proj ID Diesel Performance Sampled 09/25/98 <br /> 1260 Graphics Drive Sample Descript DP-MW1-40 5 Received 09/28/98 <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 09 29 98 <br /> Analysis Method 8015Mod/8020 Analyzed 10/02/98 <br /> tAttention Jeanne Homsey Lab Number 98091-149-03 Reported 10106J98 <br /> C Batch Number GCO92998BTEXEXA <br /> Instrument ID GCHP07 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> 1 Analyte Detection Limit Sample Result <br /> mg/Kg mg/Kg s <br /> 1 TPPH as Gas 25 250 <br /> Benzene 012 N D <br /> Toluene 012 N D <br /> 1 Ethyl Benzene 012 N D <br /> Xylenes (Total) 0 12 4 3 <br /> Chromatogram Pattern <br /> Unidentified HC C&C12 <br /> 1 Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 99 <br /> 4-Bromofluorobenzene c b7(kll�cl60 140 450 <br /> M �l <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> Lal <br /> ytes reported as N D were not present above the stated limit of detection <br /> QUOIA ANALYTICAL - ELAP #1210 <br /> 1 \ <br /> ;roject anager Page 10 <br /> 1 <br />