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t <br /> Sequoia 680 Chesapeake Dave Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(5 10)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 %00 FAX(916)921 0100 <br /> Pacific Environmental Group Client Project ID 920-119 1A/Chevron 9-6171,Stockton CA Sampled Jan 8, 1998 <br /> 11315 Sunrise Gold Circle Ste M Sample Matrix Sod Received Jan 12, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8020, DHS Luft Reported Jan 26, 1998 <br /> Attention Tim Anenson First Sample # 801-0310 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D l D I D <br /> mg/kg 801-0310 801-0311 801-0312 801-0313 801-0314 <br /> WO E-12' WO W-11 1/2' WO 5-11 WO N-12 WO 917 1/2 <br /> Purgeable <br /> Hydrocarbons 1 0 N D 24 36 28 110 <br /> Benzene 00050 N D N D N D N D N D <br /> Toluene 00050 N D 014 0 012 0 045 024 <br /> Ethyl Benzene 00050 N D 0 011 0 053 0 054 032 <br /> Total Xylenes 00050 N D 047 099 1 1 46 <br /> Chromatogram Pattern Weathered Weathered Weathered Weathered <br /> Gasoline Gasoline Gasoline Gasoline <br /> C6-C12 C6-C12 C6 C12 C6 C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 10 1 0 10 10 10 <br /> Date Analyzed 01/16/98 01/16/98 01/16/98 01/16/98 01/16/98 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 97 98 100 98 95 <br /> (QC Limits = 60-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit WIF1C EM"l4{14WAL GROUP Ott <br /> 7inda <br /> EQLLOIA ANALYTIC , ELAP #1624 r` " <br /> RErEIVEEt <br /> C Schneider <br /> t Manager/Sacramento Laboratory <br /> 8010310 PES <1 <br /> -P4, <br />