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233 <br /> Sequoia 680 Chesapeake Dnve Redwood C,M CA 94063 (415) 364 9600 FAX(415) 364 9 <br /> 404N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Straker Avenue,suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services Client Pro) ID Chevron 9-8632/970107-Z1 Sampled 01/07/97 <br /> 1680 Rogers Avenue Sample Descript Sump P Received 01/10/97 s <br /> San Jose, CA 95112 Matrix LIQUID - <br /> Analysis Method 8015Mod/8020 Analyzed 01/14/97 <br /> Attention Fran Thie Lab-Number 9701571-01 _ Reported 01 f 171 97 „ <br /> QC Batch Number GC011497BTEX17A <br /> Instrument ID GCHP17 <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 50 260 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 43 <br /> Toluene 050 41 <br /> Ethyl Benzene 050 27 <br /> Xylenes (Total) 050 30 <br /> Chromatogram Pattern, Gas <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 88 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA NALYTICAL - ELAP #1210 <br /> 0gPenner <br /> ect Manager Page 3 <br />