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American Environmental Network <br /> . PAGE 5 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020 5030 GCFID <br /> AEN JOB NO 9804141 <br /> INSTRUMENT H <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 04/22/98 MW-3 01 98 <br /> 04/22/98 MW-6 02 98 <br /> QC Limits 70-130 <br /> DATE ANALYZED 04/22/98 <br /> SAMPLE SPIKED 9804141-02 <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 93 8 70-130 20 <br /> Toluene 200 91 8 70-130 20 <br /> Ethylbenzene 200 91 8 70-130 20 <br /> Total Xylenes 600 90 8 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 />