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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> N) a) 404 N W,get Lane Walnut Creek CA 94598 (510) 989 9600 FAX(5 10)988 9673 <br /> 1% 117 Analytical 819 Striker Avenue Sultc 8 Sacramento CA 95834 (916) 921 9600 FAX(916)92t 0100 <br /> *Pacific Environmental Group, Inc Client Project ID Arco 434, Lodi, CA Sampled 2/14-15/96 <br /> 11315 Sunrise Gold Circle, #M Sample Matrix Water Received Feb 15, 1996 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/6015/6020 Reported Feb 29, 1996 <br /> Attention Greg Barclay First Sample # 602-0676 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit ID ID ID ID ID ID <br /> pg/L 602-0676 602-0677 602-0678 602-0679 602-0680 602-0681 <br /> W 1 A W2 W2A W2B W3 W5 <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D 68 N D 55 <br /> Benzene 050 0 55 N D N D 1 3 N D 0 65 <br /> Toluene 0 50 1 4 N D N D 29 N D 1 7 <br /> Ethyl Benzene 0 50 N D N D N D 053 N D N D <br /> . Total Xylenes 050 11 19 N D 17 N D 12 <br /> Chromatogram Pattern - -- Gasoline Gasoline <br /> C6-C12 C6-C 12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 10 1 0 10 1 0 10 <br /> Date Analyzed 02/21/96 02/21/96 02/21/96 02/21/96 02/21/96 02/21/96 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 94 96 95 99 93 100 <br /> (QC Limits = 70-130%) <br /> Purgeabie 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, FLAP #1624 <br /> 0V <br /> Janet arlan <br /> Prole Manager/Sacramento Laboratory <br /> 6020676 PES <1> <br /> r� <br />