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6$0 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 8t9 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical <br /> n 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 651h St Suite C Sample Descrlpt C3-S-39 Received 07/21/98 <br /> Oakland, CA 94608 Matrix SOLID Extracted 07/28/98 <br /> Analysis Method 8015Mod/8020 Analyzed 07/29/98 <br /> Attention Owen Ratchye Lab Number 9807C66-03 Reported 08104198 <br /> OC Batch Number GC072898BTEXEXA <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 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 70 130 120 <br /> 4-Bromofluorobenzene 60 140 89 <br /> s <br /> I <br /> Analytes reported as N D or not present above the stated limit of detection <br />'SEQUOI A I AL - ELAP #1210 <br /> Peggy Pe n <br />�ect Manager Page 12 <br />