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1 - Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> car 404 N Wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical <br />' 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Cambria Client Prol ID Shell 341 E Main St Sampled 07/20/98 <br /> 1144 65th St Suite C Sample Descript C3-S-42 Received 07/21/98 <br /> ' Oakland, CA 94608 Matrix SOLID Extracted 07/28/98 <br /> Analysis Method 8015Mod/8020 Analyzed 07/29/98 <br /> i Attention Owen Ratchye Lab Number 9807C66-04 Reported 08J04J98 <br /> IQC Batch Number GC072898BTEXEXA <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/K9 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 70 130 107 <br /> 4-Bromofluorobenzene 60 140 88 <br /> 6 <br /> 1 <br /> I <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br />(SEQUOIA ANA I AL - ELAP #1210 <br /> Peggy Penne <br /> orct Manager Page 16 <br />