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<� SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> �.. (916) 921-9600 * FAX (916) 9221-0100 <br /> EMCON Associates Ghent Protect ID Shell, 620 W Charter Way, Stockton ri Sampled Oct 9, 1992 <br /> 1433 N Market BW Sample Matrbc. Water Received Oct 12, 1992 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8015/8020 Reported Oct 22, 1992 <br /> Attention Jinn Pittlla First Sample 210-0281 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte UmK I.D. I.D. I.D. I.D. <br /> Ng/L 210-0281 210-0282 210-0283 210-0284 <br /> MW-10 Field Blank Tnp Blank Mup <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D 27000 <br /> Benzene 050 N D N D N D 2200 <br /> Toluene 050 N D N D N D 3000 <br /> Ethyl Benzene 050 N D N D N D N D <br /> Total Xylenes 050 N D N D N D 5800 <br /> Chromatogram Pattern -- - -- -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 10 10 100 <br /> Date Analyzed 10/20/92 10/20/92 10/20/92 10/19/92 <br /> Instrument Identification HP-1 HP-1 HP-1 HP-2 <br /> Surrogate Recovery, % - - - - <br /> (QC Umds = 70-130%) <br /> Purgeable Hydrocarbons are quartftW against a fresh gasoline standard <br /> Analytes repotted as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL <br /> Michael R GFles <br /> Laboratory Director <br /> 2100275 EMC <2> <br />