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American Environmental Network <br />PAGE 84 <br />QUALITY CONTROL DATA <br />METHOD: EPA 8020, 5030 GCFID <br />AEN JOB NO: 9705366 <br />DATE ANALYZED: 06/03/97 <br />SAMPLE SPIKED: 9705336-04 <br />INSTRUMENT: E <br />MATRIX: SOIL <br />Matrix Spike Recovery Summary <br />DATE ANALYZED: 06/09/97 <br />SAMPLE SPIKED: 9705366-26 <br />INSTRUMENT: H <br />Matrix Spike Recovery Summary <br />QC Limits <br />Spike <br />Added PercentPercent <br />Analyte (ug/kg) Recovery RPD Recovery RPD <br />Benzene <br />16.7 <br />103 6 <br />79-113 <br />QC Limits <br />Toluene <br />59.3 <br />Spike <br />84-110 <br />20 <br />Hydrocarbons <br />Added <br />Percent <br />as Gasoline <br />Percent <br />77 10 <br />Analyte <br />(ug/kg) <br />Recovery <br />RPD <br />Recovery <br />RPD <br />Benzene <br />21.3 <br />106 <br /><1 <br />79-113 <br />20 <br />Toluene <br />66.5 <br />100 <br />2 <br />84-110 <br />20 <br />Hydrocarbons <br />as Gasoline <br />500 <br />115 <br />4 <br />60-126 <br />20 <br />DATE ANALYZED: 06/09/97 <br />SAMPLE SPIKED: 9705366-26 <br />INSTRUMENT: H <br />Matrix Spike Recovery Summary <br />QC Limits <br />Spike <br />Added PercentPercent <br />Analyte (ug/kg) Recovery RPD Recovery RPD <br />Benzene <br />16.7 <br />103 6 <br />79-113 <br />20 <br />Toluene <br />59.3 <br />99 4 <br />84-110 <br />20 <br />Hydrocarbons <br />as Gasoline <br />500 <br />77 10 <br />60-126 <br />20 <br />Daily method blanks For all associated <br />analytical runs <br />showed no <br />contamination <br />at or above the reporting <br />limit. <br />