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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc Client Prol ID Diesel Performance Sampled <br /> 1260 Graphics Drive Sample Descnpt Method Blank Received 09/28/98 <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 09/29/98 <br /> Analysis Method 8015Mod/8020 Analyzed 09/29/98 <br /> " A <br /> ttention Jeanne Hornsey Lab Number 98091-149-06 Reported 10106J98 <br /> tC Batch Number GCO929986TEXEXA „ <br /> strument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> 'TPPH as Gas 1 0 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 84 <br /> 4-Bromofluorobenzene 60 140 84 <br /> alytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP 01210 <br /> roject Manager Page 22 <br />