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x <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (5[0) 988 9600 <br /> �„� Analytical 819 Striker (5[0}9g8 g673 <br /> ker Avenue,Suite 8 FAX CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 0 <br /> Gettler Ryan/Geostrategies Client Proj ID Chevron 9-6171, Stockton <br /> 6747 Sierra Court Suite G Sample Descript MW-3 Sampled 05/12/96 <br /> Dublin, CA 94568 Matrix LIQUID Received 05/15/98 <br /> Analysis Method 8015Mod/8020 <br /> Attention Deanna Harding Lab Number 9605A58-03 Analyzed 05/20/96 <br /> QC Batch Number GC052096BTEX2IA Reported 05f23196 <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) With BTEX and MTBE <br /> Analyte Detection Limit <br /> ug/L Sample Results <br /> TPPH as Gas ug/L <br /> Methyl t-Butyl Ether 50 150 <br /> Benzene 2 5 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern 0 50 N D <br /> Discrete Peaks <br /> " C6-C8 <br /> Surrogates Control Limits% o <br /> /o <br /> Trifluorotoluene 70 Recovery <br /> 130 112 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Gregory <br /> ct Manager <br /> Page 3 <br />