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09/04/96 WED it 19 FAX GROUNDWATER Z011 <br /> Arne)a an Envil onmenral Netwol k <br /> PAGE 10 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8020, 5030 GCFID <br /> AEN JOB NO 9608057 <br /> INSTRUMENT H <br /> MATRIX WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date <br /> Analyzed Client Id Lab Id Fluorobenzene <br /> 08/13/96 MW-6 01 99 <br /> 08/13/96 MW-7 02 103 <br /> 08/14/96 MW-5 03 103 <br /> 08/13/96 MW-4 04 103 <br /> 08113/96 MW-2 05 100 <br /> 08/14/96 MW-1 06 101 <br /> QC Limits 70-130 <br /> DATE ANALYZED 08/12/96 <br /> SAMPLE SPIKED 9608027-12 <br /> INSTRUMENT H <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 22 0 100 2 85-109 17 <br /> Toluene 74 9 100 1 87-111 16 <br /> Hydrocarbons <br /> as Gasoline 500 103 4 66-117 19 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br />