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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> ID 404 N Wiget!_ane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> 1W Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> is <br /> Blame Tech Services Client Prol ID Shell Tracy/970207-H3 Sampled 02/07/97 <br /> 1680 Rogers Avenue Sample Descript MW-2A Received 02/10/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/14/97 <br /> Attention Fran Thie Lab Number 9702579-02 Reported 02f25197 <br /> QC Batch Number GCO21497BTEX21 A <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 500 N D <br /> Methyl t-Butyl Ether 25 1200 <br /> Benzene 50 N D <br /> Toluene 5 0 N D <br /> Ethyl Benzene 5 0 N D <br /> Xylenes (Total) 5 0 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 87 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO A NALYTICAL - ELAP #1210 <br /> i <br /> enner <br /> Project Manager Page 2 <br />