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• <br /> ,!D— <br /> Sequoia 680 Chesapeake Dnve 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 /> 1OAnalytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Blaine Tech Services Client Prod ID Shell Stockton/970709-Fl Sampled 07/09/97 <br /> ' 1680 Rogers Avenue Sample Descript VEW-2 Received 07/10/97 <br /> "' San Jose, CA 95112 Matrix LIQUID f <br /> Analysis Method 8015Mod/8020 Analyzed 07/16/97 <br /> Attention Fran Thie Lab Number 9707592-09 _ Reported 07f23197 <br /> QC Batch Number GC071697BTEX21A <br /> Instrument ID GCHP21 <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 50 N D <br /> Methyl t-Butyl Ether .. 25 75 <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 100 <br /> • <br /> I <br /> Analytes reported as N D ere not present above the stated limit of detection <br /> SEQUOI N 1CAL - EL #1210 <br /> y Peri>�er <br /> Project Manager Page s <br />