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Sequoia 680 Chesapeake Drive 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 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Pacific Environmental Group Client Project ID 920-122 1A/Chevron 9-9840, Stockton, CA Sampled Mar 12, 1998 <br /> 11315 Sunrise Gold Circle, Ste M Sample Matrix Soil Received Mar 12, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8020, DHS Luft Reported Mar 17, 1998 <br />' Attention Tim Anenson First Sample# 803-0569 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D I D <br /> mg/kg 803-0569 803-0570 803-0571 803-0572 803-0573 803-0574 <br /> USTSP G USTSP H USTSPI USTSPJ USTSP K USTSP L <br /> Composite Composite Composite Composite Composite Composite <br />' Flurgeable <br /> Hydrocarbons 1 0 29 1 9 64 77 14 N D <br />' Benzene 00050 N D N D N D N D N D N D <br />' Toluene 00050 N D N D 00052 0 019 0 012 N D <br /> Ethyl Benzene 00050 N D N D N D N D 0 041 N D <br /> Total Xylenes 00050 00093 N D 0 031 0 031 0 022 00061 <br />' Chromatogram Pattern Weathered Weathered Weathered Weathered Weathered -- <br /> Gasoline Gasoline Gasoline Gasoline Gasoline <br />' C6-C12 C7-C12 C6-C12 C6-C12 C6-C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 1 0 1 0 1 0 1 0 1 0 1 0 <br /> Date Analyzed 43/13/98 03/16/98 03/13/98 03/13/98 03/13/98 03/13/98 <br /> Instrument Identification GCHP-2 GCHP-1 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br />' Surrogate Recovery, % 93 107 101 94 102 98 <br /> (QC Limits = 60-140%) <br /> 1 <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 <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> L da C Schnei er <br />' rolect Manager/Sacramento Laboratory <br /> 8030563 PES t 2> <br />