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www.mw#ab.com � Helena, W 877 -472 -0711 - Billings, W 608 - 735 -4489 - Casper, WY 888 - 235 -0515 <br />AeahticalfialraaSba yttiY 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: 08/26/13 <br />Project: Schwartz GW 08/08/13 S27024 & S27025 Work Order: 013080364 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />8 <br />Interference Check Sample AB <br />Analytical Run: ICP4- C_130820A <br />Sample ID: ICV <br />8 Initial Calibration Verification Standard <br />484 <br />08/20/13 11:37 <br />Aluminum <br />5.04 mg /L <br />0.10 <br />101 <br />95 <br />105 <br />Calcium <br />50.5 mg /L <br />0.50 <br />101 <br />95 <br />105 <br />Iron <br />4.96 mg /L <br />0.030 <br />99 <br />95 <br />105 <br />Magnesium <br />50.5 mg /L <br />0.50 <br />101 <br />95 <br />105 <br />Manganese <br />4.97 mg /L <br />0.010 <br />99 <br />95 <br />105 <br />Potassium <br />50.3 mg /L <br />0.50 <br />101 <br />95 <br />105 <br />Sodium <br />50.1 mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Zinc <br />0.963 mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Sample ID: ICSA <br />8 Interference Check Sample A <br />Zinc <br />08/20/13 11:51 <br />Aluminum <br />474 mg /L <br />0.10 <br />95 <br />80 <br />120 <br />Calcium <br />461 mg /L <br />0.50 <br />92 <br />80 <br />120 <br />Iron <br />176 mg /L <br />0.030 <br />88 <br />80 <br />120 <br />Magnesium <br />497 mg /L <br />0.50 <br />99 <br />80 <br />120 <br />Manganese <br />- 0.0142 mg /L <br />0.010 <br />Potassium <br />- 0.0178 mg /L <br />0.50 <br />mg /L <br />0.004 <br />Sodium <br />-0.395 mg /L <br />0.50 <br />ND <br />mg /L <br />Zinc <br />0.00437 mg /L <br />0.010 <br />Zinc <br />Sample ID: ICSAB <br />8 <br />Interference Check Sample AB <br />08/20/13 11:55 <br />Aluminum <br />484 <br />mg /L <br />0.10 <br />97 <br />80 120 <br />Calcium <br />463 <br />mg /L <br />0.50 <br />93 <br />80 120 <br />Iron <br />177 <br />mg /L <br />0.030 <br />88 <br />80 120 <br />Magnesium <br />499 <br />mg /L <br />0.50 <br />100 <br />80 120 <br />Manganese <br />0.433 <br />mg /L <br />0.010 <br />87 <br />80 120 <br />Potassium <br />- 0.0126 <br />mg /L <br />0.50 <br />Sodium <br />-0.284 <br />mg /L <br />0.50 <br />Zinc <br />0.831 <br />mg /L <br />0.010 <br />83 <br />80 120 <br />Method: E200.7 <br />Batch: 38663 <br />Sample ID: MB -38663 <br />4 <br />Method Blank <br />Run: ICP4- C_130820A <br />08/20/13 19.42 <br />Aluminum <br />ND <br />mg /L <br />0.01 <br />Iron <br />ND <br />mg /L <br />0.004 <br />Manganese <br />ND <br />mg /L <br />0.0002 <br />Zinc <br />ND <br />mg /L <br />0.001 <br />Sample ID: LCS3 -38663 <br />4 <br />Laboratory Control Sample <br />Run: ICP4- C_130820A <br />08/20/13 19:45 <br />Aluminum <br />2.68 <br />mg /L <br />0.030 <br />107 <br />85 115 <br />Iron <br />2.62 <br />mg /L <br />0.030 <br />105 <br />85 115 <br />Manganese <br />2.57 <br />mg /L <br />0.0010 <br />103 <br />85 115 <br />Zinc <br />0.501 <br />mg /L <br />0.010 <br />100 <br />85 115 <br />Sample ID: C13080370- 001AMS3 <br />4 <br />Sample Matrix Spike <br />Run: ICP4- C_130820A <br />08/20/13 20:40 <br />Aluminum <br />7.89 <br />mg /L <br />0.030 <br />160 <br />70 130 <br />S <br />Iron <br />5.73 <br />mg /L <br />0.030 <br />107 <br />70 130 <br />Manganese <br />2.52 <br />mg /L <br />0.0010 <br />98 <br />70 130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - <br />Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />S - Spike recovery outside of advisory limits. <br />Page 9 of 23 <br />