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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 94599 (510) gas 9600 [ <br /> �I,�► Analytical 819 StnFax (916(510)) <br /> ) <br /> ktr Avenue Suite 2 Sacramento, CA 95634 (916) 921 9600 Ax(51 921 9673 <br /> }921 0100 <br /> I r r r r$h IrF Is4'L 7 i <br /> Gettler Ryan/Geostrategles Client Prof ID Chevron 9-1848,Manteca r <br /> 3164 Gold Camp Drive #240 Sample Descr]pt 132-4 5 Sampled 08/25/97 <br /> l Rancho Cordova, CA 95670 Matrix SOLID Received 08/30/97 <br /> " Analysis Method 8015Mod/8020 Extracted 09/20/97 <br /> Attention Greg Gurss Lab Number 9709993-03 Analyzed 09/22/97 <br /> QCI3atch Number GReported 10/27197C0920976TEXEXA r <br /> Instrument ID GCHP07 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte <br /> Detection Limit Sample Results <br /> TPPH as Gas mg/Kg mg/Kg <br /> Benzene 10 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern 00050 N D <br /> Surrogates <br /> Trlfluorotoluene Control Limits % % Recovery <br /> 4-Bromofluorobenzene 70 130 99 <br /> 60 140 <br /> 82 <br /> Analytes reported as N D were not present above the stated Lmit of detection <br /> SEQUOIA AN LYTICAL - ELAP #1210 <br /> Project Manager <br /> Page 3 <br />