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i <br /> PAGE 39 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8260 <br /> AEN JOB NO 9609379 <br /> INSTRUMENT 12 <br /> MATRIX SOIL <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date 1 2-01chloro- p-Bromofluoro- <br /> Analyzed Client Id Lab Id ethane-d4 Toluene-de benzene <br /> 10/10/96 SB-4F 05 94 104 98 <br /> 10/10/96 SB-11D 09 90 100 104 <br /> 10/10/96 SB-3C 17 92 99 96 <br /> 10/10/96 SB-2A 18 94 103 92 <br /> 10/10/96 SB-1A 24 94 102 94 <br /> 10/10/96 SB-7D 28 96 102 93 <br /> QC Limits 70-121 81-117 74-121 <br /> DATE ANALYZED 10/19/96 <br /> SAMPLE SPIKED 9610208-09 <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 67 7 59-155 25 <br /> Trichloroethene 50 90 8 71-157 25 <br /> Benzene 50 89 3 37-151 25 <br /> Toluene 50 92 5 47-150 25 <br /> Chlorobenzene 50 103 3 37-160 25 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> 1, at or above the reporting limit <br />