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Quality Control Sample • <br /> ALS Batch Report <br /> Analysis Information <br /> Workorder: 1128806 <br /> Limits: Historical/Performance Preparation: NA Analysis: EPA TO-15 <br /> Basis: ALS Laboratory Group Batch: NA Batch: IVOA/1810(HBN:75258) <br /> Prepared By: NA Analyzed By: Lisa M.Reid <br /> Surrogate Recoveries <br /> Surrogate Bromofluorobenzene <br /> QC Limits 48.8 151.8 <br /> Units ppb <br /> Lab ID Result ITarget %Recovery <br /> 243057-LCSD 0.501 0.5 100 <br /> 243058-MB 0.407 0.5 81.5 <br /> 1128806001 0.448 0.5 89.6 <br /> 1128806002 0.469 0.5 93.8 <br /> 1128806003 0.481 0.5 96.3 <br /> 1126806004 0.461 0.5 92.2 <br /> Comments <br /> None <br /> QC Data Approved and Reviewed by <br /> Lisa M. Reid Thomas J. Masoian 10/19/2011 <br /> Analyst Peer Review Date <br /> Symbols and Definitions <br /> * -See Comments section for more information RPD-Relative%Difference(Spike/Spike Duplicate) <br /> -Sample result is greater than 4 times the spike added. NO-Not Detected <br /> OC results are not adjusted for moisture correction where applicable <br /> Page 2 of 2 Wednesday,October 19,2011 QCS V1.7 <br />