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American Environmental Network <br /> PAGE QR-7 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020 5030 GCFID <br /> AEN JOB NO 9806049 <br /> INSTRUMENT H <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 06/15/98 MW-1 01 111 <br /> 06/12/98 MW-2 02 97 <br /> 06/12/98 MW-3 03 101 <br /> 06/12/98 MW-4 04 98 <br /> 06/13/98 MW-5 05 98 <br /> QC Limits 70-130 <br /> DATE ANALYZED 06/12/98 <br /> SAMPLE SPIKED 9806049-05 <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 200 104 4 70-130 20 <br /> Toluene 200 102 5 70-130 20 <br /> Ethylbenzene 200 105 7 70-130 20 <br /> Iota] Xylenes 600 97 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 />