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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX '415) 364 9233 <br /> r (D 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX k510) 988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Blaine Tech Services Client Prol ID Shell Stockton/970401-F2 Sampled 04/02/97 <br /> 1680 Rogers Avenue Sample Descript MW-8 Received 04/03/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/11/97 <br /> Attention Fran Thie Lab Number 9704289-07 Reported 04115197 <br /> aC Batch Number GC041197BTEX17A <br /> Instrument 1D GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Lima Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 10000 86000 <br /> Methyl t-Butyl Ether 500 7400 <br /> Benzene 100 670 <br /> Toluene 100 5600 <br /> Ethyl Benzene 100 3400 <br /> Xylenes (Total) 100 16000 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 113 <br /> 9 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA A YTICAL - ELAP #1210 <br /> gy n er <br /> Manager Page 7Oject 7 <br />