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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> J%„V Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> Roy F Weston Client Project ID San Joaquin County MVCD Sampled Jun 16, 1995 <br />' One Concord Center, Suite 150 Sample Matrix Water Received Jun 16, 1995 <br /> 2300 Clayton Road Analysis Method EPA 5030/8020 Reported Jul 5, 1995 <br /> Concord, CA 94520-2148 First Sample # 506-0985 <br /> Attention Dave Marks <br /> 1 <br /> BTEX DISTINCTION <br />' Reporting Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D <br /> Mg/L 506-0985 506-0986 506-0987 506-0988 <br />' MW-1 MW-2 MW-3 MW-4 <br />' Benzene 0 50 N D N D N D N D <br /> Toluene 050 N D N D N D N D <br /> Ethyl Benzene 050 N D N D N D N D <br /> Total Xylenes 050 N D N D N D N D <br /> I <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 10 10 1 0 <br /> Date Analyzed 6/23/95 6/23/95 6/23/95 6/24/95 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 96 97 99 98 <br /> (QC Limits = 70-130%) <br /> I <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> Linda C Schneider <br /> Project Manager <br /> 5060985 ROY <1> <br /> 3� <br />