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,!D 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 9673 <br /> ,ID Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Gettler Ryan/G eostrateg i es Client Prol ID Chevron, 9-6171 Stockton Sampled 03/14/95 <br /> 6747 Sierra Court Suite G Sample Descrlpt MW-2 Received 03/15/95 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 03/20/95 <br /> ' Attention Argy Leyton Lab Number 95031353-06 Reported 03j29j95 <br /> QC Batch Number GC0320956TEX03A <br /> Instrument ID GCHP03 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 500 1200 <br /> Benzene 5 0 28 <br /> Toluene 50 N D <br /> Ethyl Benzene 50 N D <br /> Xylenes (Total) 50 N D <br /> Chromatogram Pattern <br /> Discrete Peak CS-C8 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 99 <br />(a <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> 4w:�� <br /> Gregory <br /> Project Manager Page s <br />