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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 9805279 <br /> fNSTRUMENT F H <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 06/03/98 SB5-GW 01 100 <br /> 06/03/98 SB6-GW 02 100 <br /> 06/10/98 SB7-GW 03 88 <br /> QC Limits 70-130 <br /> DATE ANALYZED 06/03/98 <br /> SAMPLE SPIKED 9805279-02 <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 100 99 5 70-130 20 <br /> Toluene 100 97 8 70-130 20 <br /> Ethylbenzene 100 99 8 70-130 20 <br /> Total Xylenes 300 97 9 70-130 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br />