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PAGE 9 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> AEN JOB NO: 9608152 <br /> INSTRUMENT: H <br /> MATRIX: WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id. Lab Id. Fluorobenzene <br /> 08/21/96 MW-1 01 102 <br /> 08/21/96 MW-2 02 101 <br /> 08/21/96 TRIP BLANK 04 101 <br /> QC Limits : 70-130 <br /> DATE ANALYZED: 08/20/96 <br /> SAMPLE SPIKED: 9608184-03 <br /> INSTRUMENT: H <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike Average <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 22.0 105 6 85-109 17 <br /> Toluene 74.9 102 2 87-111 16 <br /> Hydrocarbons <br /> as Gasoline 500 114 3 66-117 19 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit. <br /> *** ENO OF REPORT *** <br />