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American Environmental Network <br /> PAGE 8 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9703094 <br /> INSTRUMENT E <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Date Percent Recovery <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 03/14/97 MW-1 01 99 <br /> 03/14/97 MW-2 02 98 <br /> 03/14/97 MW-3 03 95 <br /> 03/14/97 MW-4 04 99 <br /> 03/14/97 MW-5 05 99 <br /> . QC Limits 70-130 <br /> DATE ANALYZED 03/14/97 <br /> SAMPLE SPIKED 9703094-05 <br /> INSTRUMENT E <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 18 2 99 4 85-109 17 <br /> Toluene 61 0 100 2 87-111 16 <br /> Hydrocarbons <br /> as Gasoline 500 91 2 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 />