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• Quality Control Sample • <br /> Batch Report <br /> ALS <br /> Analysis Information <br /> Workorder: 1128806 <br /> Limits: Historical/Performance Preparation: NA Analysis: EPATO-15 <br /> Basis: ALS Laboratory Group Batch: NA Batch: IVOA/1810(HBN:75258) <br /> Prepared By: NA Analyzed By: Lisa M.Reid <br /> Blank <br /> MB: 243058 <br /> Analyzed: 10/17/2011 19:17 <br /> Units: ppb <br /> Analyte Result RL <br /> Methyl t-butyl ether ND 0.05 <br /> 1,1,1-Tdchloroethane ND 0.05 <br /> Benzene ND 0.05 <br /> 1,1,2-Trichloroethane ND 0.05 <br /> Toluene ND 0.05 <br /> Tetrachloroethene ND 0.05 <br /> 1,2-Dibromoethane NO 0.05 <br /> Ethyl benzene ND 0.05 <br /> m,p-Xylene NO 0.05 <br /> o-Xylene ND 0.05 <br /> 1,1,2,2-Tetrachloroethane ND 0.05 <br /> Laboratory Control Sample - Laboratory Control Sample Duplicate <br /> LCS: 243056 LCSD: 243057 <br /> Analyzed: 10/17/2011 14:35 Analyzed: 10/17/2011 15:48 <br /> Units: ppb <br /> Anal a Result Target %Recovery QC Limits Result RPD OC Limits <br /> Methyl t-butyl ether 0.172 0.2 86.2 62.1 125.1 0.249 *36.3 0 25 <br /> 1,1,1-Trichloroethane 0.248 0.2 124 60.3 142.3 0.254 2.57 0 25 <br /> Benzene 0.236 0.2 118 60 144.6 0.264 11.4 0 25 <br /> 1,1,2-Trichloroethane 0.226 0.2 113 54.7 138.3 0.267 16.7 0 25 <br /> Toluene 0.156 0.2 77.9 64.2 128.8 0.227 *37.2 0 25 <br /> Tetrachloroethene 0.171 0.2 85.3 63.6 127.9 0.197 1 14.7 0 25 <br /> 1,2-Dibromoethane 0.172 0.2 86 170 1 130 0.209 19.3 0 25 <br /> Ethyl benzene 0.153 0.2 76.3 43.3 138.8 0.212 *32.6 0 25 <br /> m"- '!-'2 in 0.319 0.4 79.8 40.8 139.9 0.428 *29.1 0 25 <br /> o-Xylene 0.154 0.2 76.9 36.7 145.1 0.231 *40.1 0 25 <br /> 1,1,2,2-Tetrachloroethane 0.167 0.2 83.4 70 130 0.232 *32.9 0 25 <br /> Surrogate Recoveries <br /> Surrogate Bromofluorobenzene <br /> OC Limits 48.8 151.8 <br /> Units ppb <br /> Lab ID Result T <br /> 0.4arget %Recovery <br /> 243056-LCS 65 0.5 93 <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 /> QC results are not adjusted for moisture correction,where applicable. <br /> Page 1 of 2 Wednesday,October 19,2011 QCS V7.7 <br />