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nre)rl crrt ��n n nnnrent�tl Nerivork <br /> PAGE 16 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8240 <br /> AEN JOB NO: 9610259 <br /> INSTRUMENT: 12 <br /> MATRIX: SOIL <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date 1,2-Dichloro- p-Bromofluoro- <br /> Analyzed Client Id. Lab Id. ethane-d4 Toluene-d8 benzene <br /> 10/24/96 WL-BOTTOM 01 84 98 100 <br /> 10/24/96 WL-STOCK 02 90 100 96 <br /> 10/24/96 CH-BOTTOM 03 98 96 103 <br /> 10/24/96 CH-STOCK 04 96 97 95 <br /> 10/24/96 CH-PIPE 05 95 116 92 <br /> QC Limits: 70-121 81-117 74-121 <br /> DATE ANALYZED: 10/23/96 <br /> SAMPLE SPIKED: 9610208-05 <br /> INSTRUMENT: 12 <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike Average <br /> Added Percent Percent <br /> Analyte (ug/kg) Recovery RPD Recovery RPD <br /> 1 , 1-Dichloroethene 50 63 10 59-155 25 <br /> Trichloroethene 50 82 6 71-157 25 <br /> Benzene 50 87 3 37-151 25 <br /> Toluene 50 96 5 47-150 25 <br /> Chlorobenzene 50 107 4 37-160 25 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit. <br />