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IV <br /> PAGE QR-3 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> AEN JOB NO: 9803072 <br /> INSTRUMENT: H <br /> MATRIX: WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id, Lab Id. Fluorobenzene <br /> 03/18/98 MW-3 01 100 <br /> 03/18/98 MW-1 02 104 <br /> 03/18/98 MW-2 03 107 <br /> 03/19/98 MW-4 04 101 <br /> 03/18/98 MW-5 05 100 <br /> QC Limits : 70-130 <br /> DATE ANALYZED: 03/18/98 <br /> SAMPLE SPIKED: 9803072-05 <br /> INSTRUMENT: H <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 200 96 1 70-130 20 <br /> Toluene 200 100 2 70-130 20 <br /> Ethylbenzene 200 103 1 70-130 20 <br /> Total Xylenes 600 146 2 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 />