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l N <br /> .i <br /> 4 Sequoia 680 Chesapeake Drive Redw'ood'City,CA 94063 (415) 364-9600 FAX(415) 364.9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 9889600 FAX(510)988.9673 <br /> Analytical 819 Striker Avenue,Sttite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> aetfic Environmental Group, lnc. Client Project ID: Arco 2093,Tracy,CA Sampled. 2/12-13/96: <br /> 11315 Sunrise Gold Circle, #M Sample Matrix: Water Received: Feb 14, 1996::.- <br /> # Rancho Cordova, CA 95742 Analysis Method. EPA 5030/8015/8020 Reported: Feb 21, 1996;: <br /> Attention: Greg Barclay First Sample #: 602-0584 <br /> l <br /> { TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />{ <br /> I <br /> Reporting Sample Sample !;Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. D. J.D. I.D. I.D. <br /> a pg/L 602-0584 602-0585 602-0586 602-0587 602-0588 602-0589 <br />~ ATR-7 ATR-9 ATR-10 ATR-11 ATR-12 SM-1 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. N,D. N.D. N.D. 3,800 <br /> .i <br /> Benzene 0.50 N.D. N.D. N.D. N.D. N.D. 390 <br /> Toluene 0.50 N.D. N.D. N.D. N.D. N.D. N.Q. <br /> Ethyl Benzene 0.50 N.D. N.D. N.D. N.D. N.D. 220 <br /> Total Xylenes 0.50 N.D. N.D. N.D. N.D. N.D. 98 <br /> Chromatogram Pattern: - - 1 weathered <br /> ,. Gasoline � <br /> C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 1.0 1.0 20 <br /> t <br /> Date Analyzed: 02/17/96 02/17/96 62/19/96 02/19/96 02/19/96 02/20/96 <br /> i� <br /> Instrument Identification: GCHP-1 GCHP-1 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, %: 94 88 88 86 89 92 <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 /> , <br /> i <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> A <br /> I <br /> Tfivcl �r - <br /> JanetF Han <br /> Project anager/Sacramento Laboratory <br /> 6020578.PES <2> <br /> w r <br />