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Sequoia 680 Chesapeake Dnvc Redwood Cay CA 94063 (415) 364 96W FAX (415) 364 9233 <br /> 404 N Wigct Cane Walnut Creek CA 94598 (510) 988 96W FAX (5 10)988 9673 <br /> �rill� Analytical a19 Striker Avenue Suitc 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> 110 <br /> Pacrfic Environmental Group, Inc Client Project ID Arco 2133, Stockton, CA Sampled Sep 26, 1996 <br /> 11315 Sunrise Gold Circle, #M Sample Matrix Water Received Sep 27, 1996 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8020, DHS Luft Reported Oct 11, 1996 <br /> Attention Greg Barclay First Sample # 609-1248 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limrt 1 D. I D. ID 1 D. ID I.D. <br /> fig/L 609-1248 609-1251 609-1252 609-1253 609-1254 609-1256 <br /> MW2 MW5 E2 E3 E4 E-6 <br /> Purgeable <br /> Hydrocarbons 50 120 3,800 1,200 7,600 7,600 3,700 <br /> Benzene 0 50 27 130 13 160 890 42 <br /> Toluene 050 N D N D N D N D N D N D <br /> Ethyl Benzene 0 50 30 84 23 160 380 120 <br /> Total Xylenes 050 18 71 24 300 190 99 <br /> Chromatogram Pattern Gasoline Gasoline Unidentified Gasoline Gasoline Gasoline <br /> C6-C12 C6-C12 Hydrocarbons C6 C12 C6-C12 C6-C12 <br /> >C6&. <br /> Gasoline <br /> C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 10 1 0 10 20 10 <br /> Date Analyzed 10/03/96 10/04/96 10/03/96 10/04/96 10/08/96 10/09/96 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-7 GCHP-2 <br /> Surrogate Recovery, % 111 83 110 115 116 89 <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 /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> 05-6, ,-' <br /> Linda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 6091247 PES <5> <br />