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Ameiwan Environmental Netwoi k <br /> PAGE 5 <br /> QUALITY CONTROL DATA <br /> DATE ANALYZED 07/01/94 AEN JOB NO 9407227 <br /> SAMPLE SPIKED 9406393-01 <br /> CLIENT PROD ID R-604 INSTRUMENT F <br /> MATRIX SPIKE RECOVERY SUMMARY <br /> METHOD: EPA 8020, 5030 GCFID <br /> (AIR MATRIX) <br /> Spike Average <br /> Added Percent <br /> ANALYTE (ug/L) Recovery RPD <br /> Benzene 10 6 122 2 <br /> Toluene 40 2 96 7 <br /> Hydrocarbons <br /> as Gasoline 500 96 <1 <br /> CURRENT QC LIMITS <br /> Analyte Percent Recovery RPD <br /> Benzene (70-125) 15 <br /> Toluene (70-125) 15 <br /> Gasoline (70-125) 15 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> over the reporting limit <br /> *** END OF REPORT *** <br />