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9 v - www.vweab.com � Helena, MT 877- 472 -0711 - Billings, MT 800- 735 -4489 - Casper, WY 888 -235 -0515 <br />t! Gillette, WY 866 -686 -7175 - Rapid City, SD 886- 672 -1225 - College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 07/12/13 <br />Project: Schwartz GW 6/18/13 S27005 Work Order: 013060672 <br />Analyte Count Result Units RL ° /6REC Low Limit High Limit RPD RPDLimit Qual <br />Method: <br />E200.7 <br />Batch: 37946 <br />Analytical Run: ICP4- C_130625A <br />Sample ID: <br />ICV <br />4 Initial Calibration Verification Standard <br />Run: ICP4- C_130625A <br />06/25/13 19:50 <br />06/25/13 11:52 <br />Aluminum <br />0.01 <br />4.98 mg /L <br />0.10 <br />100 <br />95 <br />105 <br />ND mg /L <br />Iron <br />5.01 mg /L <br />0.030 <br />100 <br />95 <br />105 <br />0.0002 <br />Manganese <br />4.80 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Zinc <br />0.969 mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Run: ICP4- C_130625A <br />Sample ID: <br />ICSA <br />4 Interference Check Sample A <br />2.51 mg /L <br />0.030 <br />100 <br />85 115 <br />06/25/13 12:07 <br />Aluminum <br />Iron <br />480 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />Iron <br />2.47 mg /L <br />176 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Zinc <br />Manganese <br />0.010 <br />- 0.0185 mg /L <br />0.010 <br />Sample ID: C13050860- 005DMS3 <br />4 Sample Matrix Spike <br />Zinc <br />0.0144 mg /L <br />0.010 <br />06/25/13 20:05 <br />Aluminum <br />2.86 mg /L <br />0.030 <br />Sample ID: <br />ICSAB <br />4 Interference Check Sample AB <br />Iron <br />2.78 mg /L <br />0.030 <br />06/25/13 12:11 <br />Aluminum <br />479 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />70 130 <br />Iron <br />176 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Manganese <br />Sample ID: C13050860- 005DMSD3 <br />0.420 mg /L <br />0.010 <br />84 <br />80 <br />120 <br />06/25/13 20:08 <br />Zinc <br />2.84 mg /L <br />0.842 mg /L <br />0.010 <br />84 <br />80 <br />120 <br />Iron <br />Method: E200.7 <br />Batch: 37946 <br />Sample ID: MB -37946 <br />4 Method Blank <br />Run: ICP4- C_130625A <br />06/25/13 19:50 <br />Aluminum <br />ND mg /L <br />0.01 <br />Iron <br />ND mg /L <br />0.004 <br />Manganese <br />ND mg /L <br />0.0002 <br />Zinc <br />0.002 mg /L <br />0.001 <br />Sample ID: LCS3 -37946 <br />4 Laboratory Control Sample <br />Run: ICP4- C_130625A <br />06/25/13 19:54 <br />Aluminum <br />2.51 mg /L <br />0.030 <br />100 <br />85 115 <br />Iron <br />2.51 mg /L <br />0.030 <br />100 <br />85 115 <br />Manganese <br />2.47 mg /L <br />0.0010 <br />99 <br />85 115 <br />Zinc <br />0.498 mg /L <br />0.010 <br />99 <br />85 115 <br />Sample ID: C13050860- 005DMS3 <br />4 Sample Matrix Spike <br />Run: ICP4- C_130625A <br />06/25/13 20:05 <br />Aluminum <br />2.86 mg /L <br />0.030 <br />104 <br />70 130 <br />Iron <br />2.78 mg /L <br />0.030 <br />101 <br />70 130 <br />Manganese <br />2.51 mg /L <br />0.0010 <br />100 <br />70 130 <br />Zinc <br />0.498 mg /L <br />0.010 <br />98 <br />70 130 <br />Sample ID: C13050860- 005DMSD3 <br />4 Sample Matrix Spike Duplicate <br />Run: ICP4- C_130625A <br />06/25/13 20:08 <br />Aluminum <br />2.84 mg /L <br />0.030 <br />104 <br />70 130 <br />0.8 <br />20 <br />Iron <br />2.73 mg /L <br />0.030 <br />99 <br />70 130 <br />1.7 <br />20 <br />Manganese <br />2.46 mg /L <br />0.0010 <br />98 <br />70 130 <br />1.8 <br />20 <br />Zinc <br />0.486 mg /L <br />0.010 <br />96 <br />70 130 <br />2.4 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 22 <br />