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f <br /> Sequoia 680 Chesapeake]Drive Redwood City,CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988-9600 FAX(510)988_9679 <br /> ,-!TN <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 <br /> (916) 921 9600 FAX(916)921 0100 <br /> Gettler Ryan/Geostrategies Client Pro) ID Chevron 9-6171, Stockton <br /> 6747 Sierra Court Suite G Sample Descript MW-4 Sampled 11/12/96 <br /> _ Received 11/12/96 <br /> Dublin, CA 94568 Matrix LIQUID <br /> - Attention Deanna Harden Analysis Method 8015Mod/8020 Analyzed 11/18/96 <br /> Lab Number 9611619-07 Reported 11 j20196 - <br /> QC Batch Number GC1 1 1896BTEX21A - _ _ - - <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte <br /> Detection Limit Sample Results <br /> TPPH as Gas ug/L ug/L <br /> Methyl t-Butyl Ether 250 940 <br /> Benzene 12 N D <br /> Toluene 2 5 N D <br /> Ethyl Benzene 25 N D <br /> Xylenes (Total) 2 5 N D <br /> Chromatogram Pattern 25 N D <br /> Discrete Peaks <br /> Surrogates Control Limits % o <br /> .6 <br /> Trifluorotoluene 70 Recovery <br /> 0 i30 94 <br /> Anafytes reported as H a were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> 0 <br /> �t Manager <br /> Page g <br />