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American Environmental Network <br /> PAGE 15 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9706076 <br /> INSTRUMENT F <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Date Percent Recovery <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 06/12/97 SB6-WATER 07 98 <br /> 06/12/97 SB7-WATER 12 98 <br /> QC Limits 70-130 <br /> DATE ANALYZED 06/12/97 <br /> SAMPLE SPIKED 9706033-03 <br /> INSTRUMENT F <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 17 2 95 2 85-109 17 <br /> Toluene 63 1 97 1 87-111 16 <br /> Hydrocarbons <br /> as Gasoline 500 111 4 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 />