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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> IT) 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> fau,� Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> j Cambria - Client Prod ID Shell 2575 Country Club Blvd Sampled 11/03/97 <br /> ' 270 Perkins Ave Sample Descrlpt MW-12-115 Received 11/04/97 <br /> = Sonoma, CA 95476 Matrix SOLID Extracted 11/07/97 <br /> ,= Analysis Method 8015Mod/8020 Analyzed 11/07/97 ; <br /> Attention Joe Neely Lab Number 9711136-02 Reported 11J1 1 J97 ; <br /> QC Batch Number GC110797BTEXEXB _ <br /> Instrument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 1 0 N D <br /> Methyl t-Butyl Ether 0 025 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 /> Trlfluorotoluene 70 130 70 <br /> 4-Bromofluorobenzene 60 140 92 <br /> r� <br /> Analytes reported as N a were not present above the stated limit of detection <br /> SEQUOIA A LYTICAL - ELAP #1210 <br /> r ry <br /> Project Manager Page 2 <br />