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American Environmental Network <br /> PAGE 11 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> AEN JOB NO: 9605166 <br /> INSTRUMENT: F, H <br /> MATRIX: WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id. Lab Id. Fluorobenzene <br /> 05/20/96 MW-1 01 77 <br /> 05/20/96 MW-2 02 79 <br /> 05/21/96 MW-3 03 100 <br /> 05/17/96 TRIP BLANK 04 101 <br /> QC Limits: 70-130 <br /> DATE ANALYZED: 05/20/96 <br /> SAMPLE SPIKED: 9605146-01 <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 22.2 102 <1 85-109 17 <br /> Toluene 73.9 92 <1 87-111 16 <br /> Hydrocarbons <br /> as Gasoline 500 109 10 66-117 19 <br /> ~; Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit. <br /> *** END OF REPORT *** <br />