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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (St0) 988 9600 FAX(5t0)988-9673 <br /> ftill� Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)92t-0100 <br /> Enviros Client Pro ID Shell 6131 Pacific, Stockton Sampled 09/16/97 V <br /> 270 Perkins Ave Sample Descript MW-7-50' Received 09/19/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/25/97 <br /> Analysis Method 8015Mod/8020 Analyzed 09/26/97 <br /> Attention J Gaarder_W ^ Lab Number 9709009-14 _ Resorted 10j03j97__IFt <br /> W Hatch Number GCO92597BTEXEXBJ <br /> instrument 1D GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trrfluorotoluene 70 130 78 <br /> 4-Bromofluorobenzene 60 140 104 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mi ranagger <br /> Project Page 42 <br />