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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (415) 364 9600 FAX (415) 364-9233 <br /> 404 N Wi9111-ane Walnut C Week CA 94598 15101 988 9600 FAX {510) 988-9673 <br /> Analytical 819 Striker AvcnUC, 5UitC 8 Sacramento, CA 95834 (916) 971 9600 FAX (916) 971 0100 <br /> qPacific Environmental Group Client Project lD: 920-078.1A/chevron 9-0557.Stockton,CA Sampled: Oct 6, 1997;: <br /> 11315 Sunrise Gold Circle, Ste_ M Sample Matrix: Soil Received: Oct 7, 199T. <br /> Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8020, DHS Luft Reported: Oct 24, 1997.';. <br /> Attention: Roger Hoffmore First Sample #: 110-0330 <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 710-0330 710-0331 710-0332 710-0333 710-0334 710-0335 <br /> MW-9@45' MW-950' MW-9@a 55' MW-9@62' MW-9@65' MW-9(_70' <br /> Purgeable <br /> Hydrocarbons 1.0 4,100 1,500 2,200 1,200 3.1 N.D. <br /> Benzene 0.0050 62 28 26 i5 0.063 N.D. <br /> Toluene 0.0050 290 130 180 110 0.31 0.021 <br /> Ethyl Benzene 0.0050 97 34 50 29 0.095 0.0057 <br /> Wotal Xylenes 0.0050 380 150 220 140 0.50 0.033 <br /> Chromatogram Pattern: Weathered Weathered Weathered Weathered Weathered -- <br /> Gasoline Gasoline Gasoline Gasoline Gasoline <br /> C6-C12 C6-C12 C6-C12 C6-C12 C6-C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor: 250 1.0 1.0 1.0 1.0 1.0 <br /> Date Analyzed: 10/16/97 10/16/97 10/16/97 10/16/97 10/17/97 10/17/97 <br /> Instrument Identification: GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, %: 131 117 117 96 102 102 <br /> (QC Limits = 60-140°/x) <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 /> SEQUOI ANALYTICAL, P #1s2a <br /> da C. Schneider <br /> roject Manager/Sacramento Laboratory <br /> 7100324.PE5 <2> <br />