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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 154.9600 FAX(415} 364-9233 <br /> 404 N. Wiget Lane Walnut Creek, CA 94598 (510) 988.9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> acific Environmental '0"J <br /> nmental roup, inc. lent Pr "ect ID: Arco 434, Lodi, Aa M-...P'l ISep 6, <br /> 11315 Sunrise Gold Circle, #M Sample Matrix: Water Received: Sep 6, 1996-.'-.- <br /> Rancho Cordova, CA 95742 Analysis Method: EPA 5030/8015/8020 Reported: Sep 23, 1996".' <br /> Attention: Greg Barclay First Sample #: 609-0279 <br /> .... ....... ... ........ <br /> ................ <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. . I.D. I.D. I.D. <br /> pg/L 609-0279 609-0280 609-0281 609-0282 609-0283 609-0284 <br /> W8 W9 W110 Wil W12 TB-11 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. 130 85 N.D. N.D. <br /> Benzene 0.50 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Toluene 0.50 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Ethyl Benzene 0.50 N.D. N.D. N.D. N.D. N.D. N.D. <br /> • <br /> Total Xylenes 0.50 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Chromatogram Pattern: Unidentified Unidentified <br /> Hydrocarbons Hydrocarbons <br /> >C6 >C6 <br /> Quality Control Data <br /> Report Limit Multiplication Factor: 1.0 1.0 1.0 1.0 1.0 1.0 <br /> Date Analyzed: 09/18/96 09/118/96 09/18/96 09/18/96 09/18/96 09/18/96 <br /> Instrument Identification: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, %: 90 94 89 84 91 91 <br /> PC 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 ANALYTI CAL, FLAP #1624 <br /> 7indaC. Schneider <br /> t Manager/Sacramento Laboratory <br /> 6090273.PES <2> <br />