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American Environmental Network <br /> - i <br /> PAGE 10 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8020, 5030 GCFID <br /> i <br /> AEN JOB NO: 9511204 <br /> DATE ANALYZED: 11/21/95 <br /> SAMPLE SPIKED: 9511204-20 <br /> INSTRUMENT: E <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> ' Spike Sample MS MSD Average <br /> Conc. Result Result Result Percent Percent <br /> Analyte (ug/kg) (ug/kg) (ug/kg) (ug/kg) Recovery RPO Recovery RPD <br /> ' Benzene 36.1 ND 37.4- 35.3 101 6 79-113 26 <br /> Toluene 103 ND 108 .100 101 8 84-110 20 <br /> HCs as Gasoline 1000 ND 1230 1120 118 9 60-126 20 <br /> DATE ANALYZED: 11/21/95 <br /> ' SAMPLE SPIKED: SAND <br /> INSTRUMENT: E <br /> MATRIX: SOIL <br /> ' Laboratory Control Sample <br /> QC Limits <br /> Spike LCS LCSD Average <br /> Added Result Result Percent Percent <br /> ' Analyte (ug/kg) (ug/kg) (ug/kg) Recovery RPD Recovery RPD <br /> Benzene 36.1 34.3 33.6 94 2 60-120 20 <br /> Toluene 103 102 97 97 5 60-120 20 <br /> HCs as Gasoline 1000 1130 1110 112 2 6 0-120 20 --_ <br /> i, <br /> END OF REPORT *** <br /> r <br />