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' Sequoia 680 Chesapeake Dnve Pedwood City CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FkX(510) 988 9673 <br /> Analytical 819 Stnker Avenue Sucre 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 6 <br /> -- -==_— _ <br /> EA Engineering Science&Tech Ghent Prof ID-� EXXon 7-3942/51539421307 Sampled 04/18/96 - <br /> 3468 Mt Diablo Blvd Ste 8100 Sample Descrtpt RW4 Received 04/19/96 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/24/96 <br /> Attention Maria Guensler Lab Number 9604E23-22 Reported_05 10196 <br /> C Batch Number 6C042496BTEX17A- <br /> nstrument ID GCHP17 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br />'Analyte Detection Limit Sample Resutts <br /> ug/L ug/L <br />'TPPH as Gas 10000 62000 <br /> Methyl t-Butyl Ether 500 N D <br /> Benzene •• -- - 100 ... .. 1900 <br /> Toluene 100 9200 <br /> Ethyl Benzene - ::: 100 2100 <br /> Xylenes (Total) 100 8400 <br /> Chromatogram Pattern . . .. . . . Gas <br />' Surrogates Control Limits % % Recovery <br /> Tr fluorotoluene 70 130 90 <br /> I <br /> 1 <br /> I <br /> alytes reported as N D were not present above the stated limit of detection <br /> E A LYTICAL - ELAP #1210 <br /> I <br /> olle <br /> roject Manager `� Page 3 <br /> I <br />