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Anlerrcaiz Eivii oiinlewal Netwol k <br /> PAGE 9 <br /> QUALITY CONTROL DATA <br /> METHOD EPA 8240 <br /> ' AEN JOB NO 9512277 <br /> INSTRUMENT 12 <br /> MATRIX AIR <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 /> 12/21/95 MW10 01 97 101 97 <br /> 12/21/95 EX 02 100 93 98 <br /> QC Limits 76-114 88-110 86-115 <br /> DATE ANALYZED 12/20/95 <br /> SAMPLE SPIKED 9512194-24 <br /> INSTRUMENT 12 <br /> Matrix Spike Recovery Summary <br /> Spike Average QC Limits <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> 1 , 1-Dichloroethene 50 124 11 59-155 25 <br /> Trichloroethene 50 91 <1 71-157 25 <br /> BPn7ene 5094 <i j/ 101 25 <br /> Toluene 50 90 5 47-150 25 <br /> Chlorobenzene 50 93 5 37-160 25 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit <br /> *** END OF REPORT *** <br />