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---------------- <br /> American Elivironnzewal Nethork <br /> PAGE 6 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> -_� AEN JOB NO: 9712438 <br /> INSTRUMENT: H <br /> MATRIX: WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id. Lab Id. Fluorobenzene <br /> :._ 01/13/98 MW-1 01 98 <br /> _ 01/13/98 MW-2 02 110 <br /> 01/13/98 MW-3 03 107 <br /> : _.. QC Limits : 70-130 <br /> DATE ANALYZED: 01/13/98 <br /> SAMPLE SPIKED: LCS <br /> INSTRUMENT: H <br /> Laboratory Control Sample Recovery <br /> i <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> `a <br /> Benzene 100 95 3 70-130 20 <br /> Toluene 100 98 3 70-130 20 <br /> Ethyl benzene 100 97 3 70-130 20 <br /> ,. Total Xylenes 300 99 4 70-130 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit. <br /> Vm <br /> *** END OF REPORT *** <br />