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41 <br /> American Environmental Network <br /> PAGE 10 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020 5030 GCFID <br /> AEN JOB NO 9707328 <br /> INSTRUMENT E <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Date <br /> Percent Recovery <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 08/01/97 MW-1 01 97 <br /> 08/01/97 MW-2 02 91 <br /> 08/01/97 MW-3 03 101 <br /> 08/01/97 MW-5 04 102 <br /> 08/01/97 MW-6 05 102 <br /> 08/01/97 MW-7 06 100 <br /> 08/01/97 DW 07 101 <br /> QC Limits 70-130 <br /> DATE ANALYZED 08/01/97 <br /> SAMPLE SPIKED LCS <br /> INSTRUMENT E <br /> Laboratory Control Sample Recovery <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 18 5 97 3 85-120 20 <br /> Toluene 56 9 102 4 85-1.20 20 <br /> Hydrocarbons <br /> as Gasoline 500 106 2 85-120 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br /> *** END OF REPORT ** <br />