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4D Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> frlll,� Analytical 819 Striker Avcnue Suite 8 Sacramcrnto CA 95834 (916) 921 9600 FAX (916) 921 0ioo <br /> Pacific Environmental Group Client Prol ID 911-007 1A/5417, Manteca Sampled 01/14/98 <br /> 2025 Gateway Place, Suite 440 Sample Descnpt PD3@2 Received 01/15/98 <br /> San Jose, CA 95110 Matrix SOLID Extracted 01/20/98 <br /> Analysis Method EPA 8020 Analyzed 01/26/98 <br /> Attention Joe Muzzio Lab Number 9801861-05 Reported 02./09J98QC Batch Number GC012098BTEXEXB - -- <br /> Instrument ID GCHP22 <br /> BTEX Distinction <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> Benzene 0 025 <br /> Toluene 0 025 0 044 <br /> Ethyl benzene 0 025 - 044 <br /> Xylenes (Total) 0 025 0 48 <br /> 41 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 <br /> 4-Bromofluorobenzene g8 <br /> 60 140 22 8 <br /> Analytes reported as N D were not present above the stated Iim13 of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> d Granicher <br /> roject Manager <br /> Page 15 <br />