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American Environmental Network <br /> PAGE 10 <br /> QUALITY CONTROL. DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9410139 <br /> INSTRUMENT F <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 10/14/94 MW-1 01 94 <br /> 10/14/94 MW-2 02 92 <br /> 10/14/94 MW-3 03 93 <br /> 10/14/94 MW-4 04 95 <br /> 10/14/94 MW-5 05 93 <br /> 10/14/94 MW-6 06 95 <br /> 10/14/94 MW-7 07 95 <br /> QC Limits 86-110 <br /> DATE ANALYZED 10/14/94 <br /> SAMPLE SPIKED 9410139-04 <br /> INSTRUMENT F <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 18 5 93 7 82-125 15 <br /> Toluene 50 4 103 6 75-126 17 <br /> Hydrocarbons <br /> as Gasoline 500 83 3 75-132 16 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> over the reporting limit <br /> *** END OF REPORT *** <br />