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American Environmental Network <br /> PAGE QR-9 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020 5030 GCFID <br /> AEN JOB NO 9804259 <br /> INSTRUMENT E <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br />' Percent Recovery <br /> Date <br />' Analyzed Client Id Lab Id Fluorobenzene <br /> 05/05/98 RUSD-SB3-W 01 95 <br />' 05/05/98 RUSD-SB4-W 02 96 <br /> n•[.J/ncv/CoA 0 6RISD-cE ! <br /> V J <br /> 05/06/98 RUSD-SB6-W 04 95 <br /> QC Limits 70-130 <br />' DATE ANALYZED 05/05/98 <br /> SAMPLE SPIKED LCS <br /> INSTRUMENT E <br />' Laboratory Control Sample Recovery <br />' QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 200 105 3 70-130 20 <br />' Toluene 200 101 3 70-130 20 <br /> Ethylbenzene 200 99 1 70-130 20 <br /> Total Xylenes 600 99 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 />