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American Environmental Network <br /> PAGE 10 <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8010 <br /> AEN JOB NO: 9605166 <br /> INSTRUMENT: I <br /> MATRIX: WATER <br /> Surrogate Standard Recovery Summary <br /> Percent Recovery <br /> Date Bromochloro- 1-Bromo-3-chloro- <br /> Analyzed Client Id. Lab Id. methane propane <br /> 05/22/96 MW-3 03 89 93 <br /> 05/22/95 TRIP BLANK 04 91 93 <br /> QC Limits: 70-130 70-130 <br /> DATE ANALYZED: 05/22/96 <br /> SAMPLE SPIKED: 9605143-06 <br /> INSTRUMENT: I <br /> Matrix Spike Recovery Summary <br /> QC Limits <br /> Spike Average <br /> Added Percent Percent <br /> Analyte (ug/L) Recovery RPD Recovery RPD <br /> 1,1-Dichloroethene 50 93 3 37-156 20 <br /> Trichloroethene 50 92 <1 54-122 20 <br /> Chlorobenzene 50 90 1 54-141 20 <br /> Daily method blanks for all associated analytical runs showed no contamination <br /> at or above the reporting limit. <br />