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PLE <br />www -erw ylati.com Helena, W 877 -472 -0711 - Billings, W 808 -735 -4469 - Casper, WY 888 -235 -8515 <br />ffi. 98- Gillette, WY 866 -686 -7175 - Rapid City, SO 686- 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: C13060672 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />8 Interference Check Sample A <br />Analytical Run. ICP4- C_130626A <br />Sample ID: ICV <br />8 Initial Calibration Verification Standard <br />96 <br />80 <br />06/26/13 13:25 <br />Aluminum <br />4.96 <br />mg /L <br />0.10 <br />99 <br />95 <br />105 <br />Calcium <br />49.6 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Iron <br />4.98 <br />mg /L <br />0.030 <br />100 <br />95 <br />105 <br />Magnesium <br />49.8 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Manganese <br />483 <br />mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Potassium <br />48.3 <br />mg /L <br />0.50 <br />97 <br />95 <br />105 <br />Sodium <br />49.8 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Zinc <br />0.973 <br />mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Sample ID: ICSA <br />8 Interference Check Sample A <br />Aluminum <br />481 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />Calcium <br />455 mg /L <br />0.50 <br />91 <br />80 <br />120 <br />Iron <br />174 mg /L <br />0.030 <br />87 <br />80 <br />120 <br />Magnesium <br />493 mg /L <br />0.50 <br />99 <br />80 <br />120 <br />Manganese <br />- 0.0185 mg /L <br />0 010 <br />0.01 <br />Potassium <br />- 0.00593 mg /L <br />0.50 <br />0.0010 <br />Sodium <br />0.353 mg /L <br />0.50 <br />0.04 <br />Zinc <br />0.0119 mg /L <br />0.010 <br />0.2 <br />Sample ID: ICSAB <br />8 Interference Check Sample AB <br />mg /L <br />0.001 <br />Aluminum <br />479 mg /L <br />0.10 <br />96 <br />80 <br />120 <br />Calcium <br />458 mg /L <br />0.50 <br />92 <br />80 <br />120 <br />Iron <br />175 mg /L <br />0.030 <br />87 <br />80 <br />120 <br />Magnesium <br />496 mg /L <br />0.50 <br />99 <br />80 <br />120 <br />Manganese <br />0.425 mg /L <br />0.010 <br />85 <br />80 <br />120 <br />Potassium <br />- 0.00355 mg /L <br />0.50 <br />Sodium <br />0.425 mg /L <br />0.50 <br />Zinc <br />0.928 mg /L <br />0.010 <br />93 <br />80 <br />120 <br />Method: E200.7 <br />Sample ID: MB- 130626A <br />8 Method Blank <br />Run: ICP4- C_130626A <br />Aluminum <br />0.010 <br />mg /L <br />0.009 <br />Calcium <br />ND <br />mg /L <br />0.02 <br />Iron <br />ND <br />mg /L <br />0.002 <br />Magnesium <br />0.04 <br />mg /L <br />0.01 <br />Manganese <br />ND <br />mg /L <br />0.0010 <br />Potassium <br />ND <br />mg /L <br />0.04 <br />Sodium <br />ND <br />mg /L <br />0.2 <br />Zinc <br />ND <br />mg /L <br />0.001 <br />Sample ID: LFB- 130626A <br />8 Laboratory Fortified Blank <br />Run- ICP4- C_130626A <br />Aluminum <br />0.981 <br />mg /L <br />0.10 <br />97 <br />85 115 <br />Calcium <br />48.3 <br />mg /L <br />0.50 <br />97 <br />85 115 <br />Iron <br />0.975 <br />mg /L <br />0.030 <br />98 <br />85 115 <br />Magnesium <br />48.6 <br />mg /L <br />0.50 <br />97 <br />85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />06/26/13 13:40 <br />06/26/13 13:44 <br />Batch: R175267 <br />06/26/13 14:03 <br />06/26/13 14:07 <br />Page 9 of 22 <br />