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Sequoia 680 Chesapeake Drove Redwood Cory CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1 404 N Woget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Smker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> EA Engineering Science&Tech - Client Prol ID Exxon 7-3942/83739421307 Sampled 05/11/95 <br /> 3468 Mt Diablo Blvd Ste 13100 Sample Descript MW-12 Received 05/12/95 _ <br />' = Lafayette, CA 94549 Matrix LIQUID 05/18/95 <br /> Anal zed , <br /> Analysis Method 8015Mod/8020 Y _ <br /> Attention T Faulkner _ Lab Number 9505983;13 _ _ Reported 05J23/95 - , <br /> QC Batch Number GCO51895BTEX03A <br /> Instrument 1D GCHP03 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit - Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br />' 0 50 N D <br /> Benzene <br /> 050 N D <br /> Toluene <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 96 <br /> b <br /> 1 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQ OIA ANALYTICAL - ELAP #1210 <br /> I <br /> eggy Penner <br /> rolect Manager Page t3 <br />