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•� �* 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 /> Analytical 819 1tnkerAve nue,Sutte 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services Client Proj ID Shell Tracy/970207-1-13 Sampled 02/07/97 <br /> 1680 Rogers Avenue Sample Descript EB 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 9702579-05 Reported 02J25J97 <br /> QC Batch Number GCO21497BTEX21A <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limitw Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 98 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA NALYTICAL - ELAP 41210 <br /> Benner <br /> Project Manager Page 5 <br />