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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Pacific Environmental Group Client Project ID 920-119 1A/Chevron 9-6171 Sampled Jan 29 1998 <br /> 11315 Sunrise Golf Circle, Ste M Sample Matrix Soil Received Jan 30, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8020, DNS Luft Reported Feb 2, 1998 <br /> Attention Dennis M Jones First Sample# 801-0955 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D 10 1 D I D <br /> mg/kg 801-0955 801-0956 801-0957 801-0958 801-0959 <br /> Spoils 1-A&B Spoils 2-ABC Spoils 3-A&B Spoils 4-ABCD Spoils 5 A&B <br /> Composite Composite Composite Composite Composite <br /> Vurgeable <br /> Hydrocarbons 10 1 3 N D N D 47 N D <br /> Benzene 00050 N D N D N D 0 028 N D <br /> Toluene 00050 N D N D N D 029 N D <br /> Ethyl Benzene 00050 N D N D N D 0 034 N D <br /> Total Xylenes 00050 0 021 N D N D 024 N D <br /> Chromatogram Pattern Weathered Weathered <br /> Gasoline Gasoline <br /> C8 C12 C6 C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 1 0 1 0 1 0 1 0 1 0 <br /> Date Analyzed 01/30/98 01/30/98 01/30/98 01/30/98 01/30/98 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 96 104 98 115 96 <br /> (QC Limits = 60-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, )F=LAP #1624 <br /> inda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 8010955 PES <1> <br />