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e <br /> (D— <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 9673 <br /> %7Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services _ - Client Prof ID Shell Stockton/970709-Fl Sampled 07/09/97 <br /> 1680 Rogers Avenue Sample Descript MW-5 Received 07/10/97 <br /> r San Jose, CA 95112 Matrix LIQUID 1 <br /> Analysis Method 8015Mod/8020 Analyzed 07/17/97 <br /> Attention Fran Thie Lab Number 9707592-07 Reported 07J23197 <br /> QC Batch Number GC071797BTEX02A <br /> Instrument ID GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 100 N D <br /> Methyl t-Butyl Ether 50 560 <br /> Benzene 1 0 N D <br /> Toluene 1 0 N D <br /> Ethyl Benzene 1 0 N D <br /> Xylenes (rota!) 1 0 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 99 <br /> i <br /> Analytes reported as N D w not present above the stated limit of detection <br /> SEQUO N ICAL - ELAP #1210 <br /> Penn r <br /> Prafect Manager Page 7 <br />