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` ✓ <br /> � Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364.9233 <br /> 404 N.Wiget(ane 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)921-0 100 <br /> Pacific Environmental Group Client Project ID: Unocal#1205, Lathrop, CA Sampled: Nov 18, 1997 <br /> 11315 Sunrise Gold Circle, Ste. M Sample Matrix: Soil Received: Nov 19, 1997'f <br /> Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8020, DHS Luft Reported: Dec 2, 1997; <br /> Attention: Rusty Benkosky First Sample#: 711-1174 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. <br /> mg/kg 711-1174 711-1175 711-1176 <br /> SP-1 SP-2 SP-3 <br /> Composite Composite Composite <br /> Purgeable <br /> Hydrocarbons 1.0 180 11 39 <br /> Benzene 0.0050 N.D. N.D. N.D. <br /> MGIFIC ENVIRONMENTAL GROUP,INC <br /> Toluene 0.0050 N.D. N.D. N.D. <br /> Ethyl Benzene 0.0050 0.18 N.D. N.D. RECEIVED <br /> Total Xylenes 0.0050 9.3 N.D. N.D. <br /> Chromatogram Pattern: Weathered Weathered Weathered <br /> Gasoline Gasoline Gasoline <br /> C6-C12 C8-C12 C8-C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor: 20 1.0 10 <br /> Date Analyzed: 11/26/97 11/26/97 11/26/97 <br /> Instrument Identification: GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, %: 104 101 103 <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. <br /> SE UOIA ANNAV�) <br /> [CAL, ELAAP #1624 <br /> Cly[ <br /> (/*AjndaC. Schneider <br /> Project Manager/Sacramento Laboratory <br /> 7111174.PES <1 > <br />