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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N W:get 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 /> BA Engineering Science &Tech Client Proj ID Exxon 7-3942 / 8373942 1307 Sampler! 02/13/96 <br /> 3468 Mt Diablo Blvd Ste 6100 Sample Descript TB Received 02/14/96 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/16/96 <br /> Attention Tracy Faulkner _Lab Number 9602A05-19 _ Reported 02123196 <br />'QC Batch Number GCO21696BTEX21A <br /> Instrument ID GCHP21 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte De•ection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br />' Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br />' Chromatograrn Pattern <br /> Surrogates Control Limits% % Recovery <br />' Trifluorotoluene 70 130 81 <br /> i <br /> 1 <br /> 1 <br /> 1 � <br /> Analytes reported as N D were not present above the stated limit of detection <br />' SEQUOIA ANALYTICAL - ELAP 41210 <br /> in Follett <br /> sect Manager Page is <br />