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• <br />www.enerdabxom <br />Helena, lilt 871 -472 -0711 • Billings, MT 800 - 735-4489 • Casper, WY 888- 235 -0515 <br />f1° 1tl1C1 ,4C'r <br />Gillette, WY 866 - 686 -7175 • Rapid City, SD 88B -672 -1225 • College station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Client: Cotter Corporation <br />Report Date: <br />09/30/14 <br />Project: Schwartz -GW 9/11/14 S27683 and S27684 <br />Work Order: <br />C14090497 <br />Analyte <br />Count Result <br />Units <br />RL <br />%REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.7 <br />Analytical Run: ICP4- C_140916A <br />Lab ID: ICV <br />9 Initial Calibration <br />Verification Standard <br />09/16/14 13:41 <br />Aluminum <br />4.93 <br />mg /L <br />0.10 <br />99 <br />95 <br />105 <br />Calcium <br />50.0 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Iron <br />5.00 <br />mg /L <br />0.030 <br />100 <br />95 <br />105 <br />Magnesium <br />50.2 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Manganese <br />4.78 <br />mg /L <br />0.010 <br />96 <br />95 <br />105 <br />Molybdenum <br />0.976 <br />mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Potassium <br />50.8 <br />mg /L <br />0.50 <br />102 <br />95 <br />105 <br />Sodium <br />50.2 <br />mg /L <br />0.50 <br />100 <br />95 <br />105 <br />Uranium <br />5.04 <br />mg /L <br />1.0 <br />101 <br />95 <br />105 <br />Lab ID: ICSA <br />9 Interference Check <br />Sample A <br />09/16/14 13:56 <br />Aluminum <br />471 <br />mg /L <br />0.10 <br />94 <br />80 <br />120 <br />Calcium <br />462 <br />mg /L <br />0.50 <br />92 <br />80 <br />120 <br />Iron <br />177 <br />mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Magnesium <br />501 <br />mg /L <br />0.50 <br />100 <br />80 <br />120 <br />Manganese <br />0.00173 <br />mg /L <br />0.010 <br />Molybdenum <br />0.00361 <br />mg /L <br />0.10 <br />Potassium <br />0.00742 <br />mg /L <br />0.50 <br />Sodium <br />0.496 <br />mg /L <br />0.50 <br />Uranium <br />0.125 <br />mg /L <br />1.0 <br />Lab ID: ICSAB <br />9 Interference Check <br />Sample AB <br />09/16/14 14:00 <br />Aluminum <br />476 <br />mg /L <br />0.10 <br />95 <br />80 <br />120 <br />Calcium <br />458 <br />mg /L <br />0.50 <br />92 <br />80 <br />120 <br />Iron <br />177 <br />mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Magnesium <br />496 <br />mg /L <br />0.50 <br />99 <br />80 <br />120 <br />Manganese <br />0.436 <br />mg /L <br />0.010 <br />87 <br />80 <br />120 <br />Molybdenum <br />0.00371 <br />mg /L <br />0.10 <br />Potassium <br />0.00854 <br />mg /L <br />0.50 <br />Sodium <br />0.336 <br />mg /L <br />0.50 <br />Uranium <br />0.0903 <br />mg /L <br />1.0 <br />Method: E200.7 <br />Batch: R191190 <br />Lab ID: MB- 140916A <br />9 Method Blank <br />Run: ICP4 <br />-C 140916A <br />09/16/14 14:19 <br />Aluminum <br />ND <br />mg /L <br />0.01 <br />Calcium <br />ND <br />mg /L <br />0.01 <br />Iron <br />ND <br />mg /L <br />0.005 <br />Magnesium <br />ND <br />mg /L <br />0.01 <br />Manganese <br />ND <br />mg /L <br />0.002 <br />Molybdenum <br />ND <br />mg /L <br />0.007 <br />Potassium <br />ND <br />mg /L <br />0.06 <br />Sodium <br />ND <br />mg /L <br />0.01 <br />Uranium <br />ND <br />mg /L <br />0.1 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 10 of 25 <br />