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• n www.ene(gylab.com Helena, MT 677- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />tm � Gillette, WY 866 -606 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />08/15/13 <br />Project: Schwartz - GW 07/17/13 <br />S27048 <br />Work Order: <br />C13070703 <br />[Analyte <br />Count Result Units <br />RL <br />0/6REC <br />Low Limit <br />High Limit <br />RPD <br />RPDLimit Qual <br />Method: <br />E200.7 <br />Analytical Run: ICP4- C_130806A <br />Sample ID: <br />ICV <br />3 Initial Calibration Verification Standard <br />08/06/13 13:18 <br />Barium <br />1.00 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />Iron <br />4.99 mg /L <br />0.030 <br />100 <br />95 <br />105 <br />Manganese <br />4.82 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Sample ID: <br />ICSA <br />3 Interference Check Sample A <br />08/06/13 13:32 <br />Barium <br />0.000600 mg /L <br />0.10 <br />Iron <br />175 mg /L <br />0.030 <br />87 <br />80 <br />120 <br />Manganese <br />- 0.0170 mg /L <br />0.010 <br />Sample ID: <br />ICSAB <br />3 Interference Check Sample AB <br />08/06/13 13:36 <br />Barium <br />0.478 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />Iron <br />178 mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Manganese <br />0.430 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Method: <br />E200.7 <br />Batch: 38385 <br />Sample ID: <br />MB -38385 <br />3 Method Blank <br />Run: ICP4 -C 130806A <br />08/06/13 15:45 <br />Barium <br />0.0002 mg /L <br />0.0002 <br />Iron <br />0.02 mg /L <br />0.004 <br />Manganese <br />ND mg /L <br />0.0002 <br />Sample ID: <br />LCS3 -38385 <br />3 Laboratory Control Sample <br />Run: ICP4- C_130806A <br />08/06/13 15:49 <br />Barium <br />0.502 mg /L <br />0.050 <br />100 <br />85 <br />115 <br />Iron <br />2.53 mg /L <br />0.030 <br />100 <br />85 <br />115 <br />Manganese <br />2.42 mg /L <br />0.0010 <br />97 <br />85 <br />115 <br />Sample ID: <br />C13070684- 004BMS3 <br />3 Sample Matrix Spike <br />Run: ICP4- C_130806A <br />08/06/13 16:56 <br />Barium <br />11.4 mg /L <br />0.050 <br />70 <br />130 <br />A <br />Iron <br />4.30 mg /L <br />0.80 <br />102 <br />70 <br />130 <br />Manganese <br />13.6 mg /L <br />0.033 <br />70 <br />130 <br />A <br />Sample ID: <br />C13070684- 004BMSD3 <br />3 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130806A <br />08/06/13 17.00 <br />Barium <br />11.5 mg /L <br />0.050 <br />70 <br />130 <br />1.1 <br />20 A <br />Iron <br />3.65 mg /L <br />0.80 <br />76 <br />70 <br />130 <br />16 <br />20 <br />Manganese <br />13.5 mg /L <br />0.033 <br />70 <br />130 <br />0.9 <br />20 A <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 5 of 12 <br />