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'ry Sequoia 680 Chesapeake Dnve 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 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Pacific Environmental Group Client Prol ID 310-097 1 B, Tracy _ Sampled 01/11/97 <br /> 2025 Gateway Place, Suite 440 Sample Descnpt U-4 Received 01/11/97 <br /> San Jose, CA 95110 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 01/14/97 _ <br /> Attention Joe_ Muzzlo " Lab Number 9701516-01 Reported 01 J20197 <br /> QC Batch Number�GCO11497BTEX01A <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> lug/L ug/L <br /> TPPH as Gas 200 3600 <br /> Benzene 2 0 61 <br /> Toluene 2 0 61 <br /> Ethyl Benzene 2 0 18 <br /> Xylenes (Total) - 2 0 19 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 117 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> ranlcher <br /> Pr sect Manager Page 3 <br />