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Sequoia 680 Chesapeake Dnve Redwood Cory CA 94063 1415) 364 9600 FAX(415) 364 9233 <br /> �rr„y :�nalyt�ea1 404 1V W,gec Lane Walnut Creek CA 94598 (5101 988 9600 FAX(510)988 %73 <br /> 819 Sinker Avenue Suite 8 5a[ramenm CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Brown & Caldwell Client Project ID Arco 2133-95-5 Stockton Sampled Aug2 1995 <br /> p 9 <br /> 9616 Micron Ave Suite 600 Sample Matrix Air Received Aug 22 1995 <br /> Sacramento CA 95827 Analysis Method EPA 5030/8015/8020 Reported Sep 6, 1995 <br /> Attention Mindy Patterson First Sample # 508-1046 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D l D <br /> ppmv 508-1046 508-1047 <br /> INF EFF <br /> Furgeable <br /> Hydrocarbons 14 1,200 17 <br /> Benzene 0 016 41 044 <br /> Toluene 0 013 11 0 080 <br /> Ethyl Benzene 0 012 076 0 016 <br /> Total Xylenes 0 012 60 9 7 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 50 1 0 <br /> Date Analyzed 8/24/95 8/24/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 116 95 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> Janet H an <br /> Project Manager <br /> 5081046 BRS <1> <br />