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American Environmental Network <br /> PAGE 8 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9805010 <br /> DATE ANALYZED 05/11/98 <br /> SAMPLE SPIKED LCS <br /> INSTRUMENT E <br /> Laboratory Control Sample Recovery <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 200 101 1 70-130 20 <br /> Toluene 200 97 3 70-130 20 <br /> Ethylbenzene 200 97 3 70-130 20 <br /> Total Xylenes 600 95 3 70-130 20 <br /> Dally method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br /> • *** END OF REPORT *** <br />