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j Sequoia 680 Chesapeake Drive Redwood CitM 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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Iwo <br /> Blaine Technical-Services µ — Client Proj ID Chevron,9-8632, 960820-.J2 Sampled 08/20/96 <br /> 985 Timothy Drive Sample Descript MW-3 Received 08/21/96 <br /> San Jose, CA 95133 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/29/96 <br /> Attention Jim Keller - Lab Number_ 96O8C67-03 _ _ Reported 09JO6196 <br /> QC Batch Number GC082996BTEX02A <br /> Instrument ID GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Anaiyte Detection Limit Sample Results <br /> ug/L u9/L <br /> TPPH as Gas 125 430 <br /> Methyl t-Butyl Ether 62 480 <br /> Benzene 12 55 <br /> Toluene 12 N D <br /> Ethyl Benzene 1 2 42 <br /> Xylenes (Total) 1 2 23 <br /> Chromatogram Pattern Gas <br /> Surrogates Control limits % % Recovery <br /> Trifluorotoluene 70 130 79 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br />-- V'eA Z�' S A <br /> Peggy Penner <br /> Project Manager Page 10 <br />