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www.ener6ob.com Helena, MT 871- 472 -0711 • Billings, MT 800 - 735 -4489 a Casper, WY 888 -235 -8515 <br />AnWhoI hnfto 9= fl58 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 06/19/13 S27006 - S27007 Work Order: C13060719 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />9 Interference Check Sample A <br />Analytical Run, ICP4- C_130627A <br />Sample ID: ICV <br />9 Initial Calibration Verification Standard <br />0.10 <br />97 <br />06/27/13 11:22 <br />Aluminum <br />4.93 <br />mg /L <br />0.10 <br />99 <br />95 <br />105 <br />Calcium <br />49.5 <br />mg /L <br />0.50 <br />99 <br />95 <br />105 <br />Iron <br />498 <br />mg /L <br />0.030 <br />100 <br />95 <br />105 <br />Magnesium <br />49.2 <br />mg /L <br />0.50 <br />98 <br />95 <br />105 <br />Manganese <br />4.80 <br />mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Molybdenum <br />0.958 <br />mg /L <br />0.10 <br />96 <br />95 <br />105 <br />Potassium <br />48.2 <br />mg /L <br />0.50 <br />96 <br />95 <br />105 <br />Sodium <br />49.9 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Zinc <br />0.968 <br />mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Sample ID: ICSA <br />9 Interference Check Sample A <br />06/27/13 11:37 <br />Aluminum <br />483 mg /L <br />0.10 <br />97 <br />80 <br />120 <br />Calcium <br />459 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 />492 mg /L <br />0.50 <br />98 <br />80 <br />120 <br />Manganese <br />- 0.0167 mg /L <br />0.010 <br />Molybdenum <br />- 0.00431 mg /L <br />0.10 <br />Potassium <br />- 0.00533 mg /L <br />0.50 <br />Sodium <br />0.451 mg /L <br />0.50 <br />Zinc <br />0.0140 mg /L <br />0.010 <br />Sample ID: ICSAB <br />9 Interference Check Sample AB <br />06/27/13 11:41 <br />Aluminum <br />488 mg /L <br />0.10 <br />98 <br />80 <br />120 <br />Calcium <br />465 mg /L <br />0.50 <br />93 <br />80 <br />120 <br />Iron <br />178 mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Magnesium <br />497 mg /L <br />0.50 <br />99 <br />80 <br />120 <br />Manganese <br />0.430 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Molybdenum <br />- 0.00268 mg /L <br />0.10 <br />Potassium <br />- 0.00234 mg /L <br />0.50 <br />Sodium <br />0.425 mg /L <br />0.50 <br />Zinc <br />0.859 mg /L <br />0.010 <br />86 <br />80 <br />120 <br />Method: E200.7 <br />Batch: R175320 <br />Sample ID: MB- 130627A <br />9 Method Blank <br />Run: ICP4- C_130627A <br />06/27/13 11:59 <br />Aluminum <br />0.01 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 />0.03 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 />Zinc <br />ND mg /L <br />0.001 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit <br />MDC - Minimum detectable concentration <br />Page 9 of 23 <br />