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American Eiivironn7errtal Netm'or>; <br /> PAGE 8 <br /> QUALITY CONTROL DATA <br /> AEN JOB NO 9409411 <br /> DATE ANALYZED 10/07/94 <br /> SAMPLE SPIKED 9409435-01 <br /> INSTRUMENT F <br /> MATRIX WATER <br /> Matrix Spike Recovery Summary <br /> Method EPA 8020 5030 GCFID <br /> QC Limits <br /> Spike Average <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 18 5 95 4 82-125 15 <br /> Toluene 50 4 96 <1 75-126 17 <br /> Hydrocarbons <br /> as Gasoline 500 87 5 75-132 16 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> over the reporting limit <br /> *** END OF REPORT *** <br />