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JUL. 24, 1997 4:46PM PACIFIC OVERSIGHT NO. 2495 P. 9/13 <br /> • Aman Environmental Network <br /> PAGE 7 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> AEN JOB NO: 9506137 <br /> INSTRUMENT: H <br /> MATRIX: NATER <br /> Surrogate Standard Recovery Summary <br /> Date Percent Recovery <br /> Analyzed Client Id. Lab Id. Fluorobenzene <br /> 06/13/95 PN-1 01 99 <br /> QC Limits: 92-109 <br /> DATE ANALYZED: 06/12/95 <br /> SAMPLE SPIKED: 9506077-03 <br /> INSTRUMENT: H <br /> Matrix Spike Recovery Summary <br /> Spike Average QC Limits <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> Benzene 36.3 103 3 B5-109 17 <br /> Toluene 103.0 105 3 87-111 16 <br /> Rydrocarbons <br /> as Gasoline 1000 96 6 66-117 19 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> over the reporting limit. <br />