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www.emBlab.com � Helena, MT 811- 472 -0711 a Billings, MT 868- 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 886 -6BG -7175 • Rapid City, SD 888- 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: 08/08/13 <br />Project: Schwartz -GW 7/10/13 S27017 Work Order: 013070431 <br />Analyte Count Result Units RL ° /diEC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />9 Interference Check Sample A <br />Analytical Run: ICP4- C_130725A <br />Sample ID: ICV <br />9 Initial Calibration Verification Standard <br />0.10 <br />92 <br />07/25/13 10:50 <br />Aluminum <br />4.81 <br />mg /L <br />0.10 <br />96 <br />95 <br />105 <br />Calcium <br />50.5 <br />mg /L <br />0.50 <br />101 <br />95 <br />105 <br />Iron <br />5.03 <br />mg /L <br />0.030 <br />101 <br />95 <br />105 <br />Magnesium <br />48.5 <br />mg /L <br />0.50 <br />97 <br />95 <br />105 <br />Manganese <br />4.78 <br />mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Molybdenum <br />0.982 <br />mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Potassium <br />49.3 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Sodium <br />51.3 <br />mg /L <br />0.50 <br />103 <br />95 <br />105 <br />Uranium <br />4.95 <br />mg /L <br />1.0 <br />99 <br />95 <br />105 <br />Sample ID: ICSA <br />9 Interference Check Sample A <br />07/25/13 11:04 <br />Aluminum <br />459 mg /L <br />0.10 <br />92 <br />80 <br />120 <br />Calcium <br />455 mg /L <br />0.50 <br />91 <br />80 <br />120 <br />Iron <br />175 mg /L <br />0.030 <br />87 <br />80 <br />120 <br />Magnesium <br />478 mg /L <br />0.50 <br />96 <br />80 <br />120 <br />Manganese <br />- 0.0186 mg /L <br />0.010 <br />Molybdenum <br />0.00256 mg /L <br />0.10 <br />Potassium <br />0.0178 mg /L <br />0.50 <br />Sodium <br />0.402 mg /L <br />0.50 <br />Uranium <br />0.174 mg /L <br />1.0 <br />Sample ID: ICSAB <br />9 Interference Check Sample AB <br />07/25/13 11:09 <br />Aluminum <br />463 mg /L <br />0.10 <br />93 <br />80 <br />120 <br />Calcium <br />455 mg /L <br />0.50 <br />91 <br />80 <br />120 <br />Iron <br />177 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Magnesium <br />481 mg /L <br />0.50 <br />96 <br />80 <br />120 <br />Manganese <br />0.418 mg /L <br />0.010 <br />84 <br />80 <br />120 <br />Molybdenum <br />0.00130 mg /L <br />0.10 <br />Potassium <br />0.0189 mg /L <br />0.50 <br />Sodium <br />0.549 mg /L <br />0.50 <br />Uranium <br />0.172 mg /L <br />1.0 <br />Method: E200.7 <br />Batch: R176394 <br />Sample ID: MB- 130725A <br />9 Method Blank <br />Run: ICP4- C_130725A <br />07/25/13 11:27 <br />Aluminum <br />ND mg /L <br />0.009 <br />Calcium <br />ND mg /L <br />0.02 <br />Iron <br />ND mg /L <br />0 002 <br />Magnesium <br />0.02 mg /L <br />0.01 <br />Manganese <br />ND mg /L <br />0.0010 <br />Molybdenum <br />ND mg /L <br />0.003 <br />Potassium <br />ND mg /L <br />0.04 <br />Sodium <br />ND mg /L <br />0.2 <br />Uranium <br />ND mg /L <br />0.3 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 8 of 20 <br />