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American Environmental Netwoi k <br /> PAGE 14 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9706076 <br /> INSTRUMENT H <br /> MATRIX SOIL <br /> Surrogate Standard Recovery Summary <br /> Date Percent Recovery <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 06/11/97 SB6-15 01 100 <br /> 06/11/97 SB6-40 02 100 <br /> 06/12/97 SB6-45 03 100 <br /> 06/12/97 SB6-50 04 100 <br /> 06/13/97 SB6-55 05 100 <br /> 06/11/97 SB7-40 08 100 <br /> 06/12/97 SB7-45 09 98 <br /> 06/12/97 SB7-50 10 94 <br /> 06/13/97 SB7-60 11 96 <br /> QC Limits 70-130 <br /> DATE ANALYZED 06/12/97 <br /> SAMPLE SPIKED 9706076-01 <br /> INSTRUMENT H <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike <br /> Added Percent Percent <br /> Analyte (ug/kg) Recovery RPD Recovery RPD <br /> Benzene 16 7 111 18 79-113 20 <br /> Toluene 59 3 109 8 84-110 20 <br /> Hydrocarbons <br /> as Gasoline 500 104 2 60-126 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br />