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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(4t5) 364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)989 %73 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95934 (916) 921 9600 FAX(916)921 0100 <br /> OM-West Client Project ID 653 30 /Santa Pe/Stockton Sampled ' Jun 29, 1995 <br /> 455 Capitol Mall, 8th Fir Sample Matrix Water Received Jun 29, 1995 <br /> Sacramento, CA 95814 Analysis Method EPA 5030/8015/8020 Reported Jul 14, 1995 <br /> Attention Laurie Depies First Sample # 506-1738 H N <br /> H. I , - rq . <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. 1.101 I.D. I.D. <br /> pg/L 506-1738 506-1739 506-1740 506-1741 BLK071195 <br /> MW-1 MW-2 MW-3 T Blank Method Blank <br /> 62995 6.2995 62995 <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D N D N D <br /> Benzene 050 N D ND N D N D N D <br /> Toluene 050 N D ND N.D N D ND <br /> Ethyl Benzene 050 N D N D N D N D N D <br /> Wotal Xylenes 050 N D N D N.D N D N D <br /> Chromatogram Pattern -- -- -- '- <br /> Quality Control Data <br /> Report Urrlit Multiplication Factor 10 10 10 10 10 <br /> Date Analyzed 7/11/95 7/11/95 7/11/95 7/11/95 7/11/95 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 80 78 87 88 99 <br /> (QC Limits = 70-130%) <br /> Purgeable 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, ELAP #1624 <br /> Linda C Schneider <br /> Project Manager <br /> 50617'38 ERS <1 7 <br /> T <br />