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Sequoia 680 Chesapcakc Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wtget Lane Wainut Creek CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> �I Analytical 819 Senkcr Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> n ; <br /> Pacific Environmental Group, Inc ' Client Project ID Arco 2133, Stockton Sampled ' 'Mar 18, 1996 <br /> 11315 Sunrise Gold Circle, #M Sample Matrix Water Received Mar 21, 1996 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8015/8020 Reported Apr 3, 1996 <br /> Attention Greg Barclay First Sample # 603-1042 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limrt ID ID ID ID <br /> erg/L 603-1042 603-1043 603-1044 603-1045 <br /> 13HD-2 PR-1 PR-2 T&1 <br /> Purgeable <br /> Hydrocarbons 50 98 ND ND ND <br /> Benzene 050 ND ND ND ND <br /> Toluene 050 ND N D ND ND <br /> Ethyl Benzene 050 N D N D N D N D <br /> Total Xylenes 050 1 4 N D N D N D <br /> Chromatogram Pattern Weathered <br /> Gasoline <br /> Gfi-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 03/29/96 03/29/96 03/29/96 03/29/96 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 82 82 82 81 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, FLAP #1624 ' <br /> rnda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 6031010 PES <6> <br />