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American Environmental Networ k <br /> PAGE 5 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020 5030 GCFID <br /> AEN JOB NO 9711332 <br /> INSTRUMENT F <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 12/02/97 WW-A, B,C {COMP} 01 92 <br /> 12/02/97 WW-D,E,F (COMP) 02 93 <br /> QC Limits 70-130 <br /> DATE ANALYZED 12/02/97 <br /> SAMPLE SPIKED LCS <br /> INSTRUMENT F <br /> Laboratory Control Sample Recovery <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 100 82 12 70-130 20 <br /> Toluene 100 105 5 70-130 20 <br /> Ethylbenzene 100 116 13 70-130 20 <br /> Total Xylenes 300 125 14 70-130 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting "limit <br /> *** END OF REPORT *** <br /> • <br />