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Sequoia 0 Chesaocake Drive RedWoaa City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> -04 N W get Lane Walnut Creek CA 94598 (510) 988 9600 FAX(51o) 989 %73 <br /> „ Analytical 319 Sinker Avenue Suite 8 Sacramento CA 95834 916) 921 9600 FAX(916)921 0100 <br /> • Brown & Caldwell Client Project ID Arco 434, Lodi. Sampled Jul 8, 1995 <br /> 9616 Micron Ave Suite 600 Sample Matrix Air Received Jul 10, 1995 <br /> Sacramento CA 95827 Analysis Method EPA 5030/8015/8020 Reported Jul 13, 1995 <br /> Attention Mindy Patterson First Sample # 507-0217 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D I D <br /> ppmv 507-0217 507-0218 <br /> INF EFF <br /> Purgeable <br /> Hydrocarbons 14 77 28 <br /> Benzene 0 016 N D N D <br /> Toluene 0 013 N D 0 037 <br /> Ethyl Benzene 0 012 025 018 <br /> • Total Xylenes 0 012 48 2 1 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 <br /> Date Analyzed 7/10/95 7/10/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 99 93 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as H D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTIC L,FLAP#1624 <br /> Janet an <br /> Project Manager <br /> 5070217 BR5 <1> <br />