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• - www.enerdab.com � Helena, MT 877 - 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />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: 09/30/14 <br />Project: Schwartz -SW 9/4/14 S27661 Work Order: C14090226 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 Analytical Run: ICP4- C140911 A <br />Lab ID: ICV 6 Initial Calibration Verification Standard 09/11/14 14:27 <br />Aluminum <br />4.95 mg /L <br />0.10 <br />99 <br />95 <br />105 <br />Boron <br />0.978 mg /L <br />0.10 <br />98 <br />95 <br />105 <br />Iron <br />4.93 mg /L <br />0.030 <br />99 <br />95 <br />105 <br />Manganese <br />4.76 mg /L <br />0.010 <br />95 <br />95 <br />105 <br />Molybdenum <br />0.970 mg /L <br />0.10 <br />97 <br />95 <br />105 <br />Zinc <br />0.969 mg /L <br />0.010 <br />97 <br />95 <br />105 <br />Lab ID: ICSA <br />6 <br />Interference Check Sample A <br />09/11/14 14:42 <br />Aluminum <br />483 mg /L <br />0.10 <br />97 <br />80 <br />120 <br />Boron <br />- 0.00120 mg /L <br />0.10 <br />Iron <br />178 mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Manganese <br />0.00376 mg /L <br />0.010 <br />Molybdenum <br />0.00613 mg /L <br />0.10 <br />Zinc <br />- 0.00387 mg /L <br />0.010 <br />Lab ID: ICSAB <br />6 <br />Interference Check Sample AB <br />09/11/14 14:46 <br />Aluminum <br />476 mg /L <br />0.10 <br />95 <br />80 <br />120 <br />Boron <br />0.000670 mg /L <br />0.10 <br />Iron <br />177 mg /L <br />0.030 <br />89 <br />80 <br />120 <br />Manganese <br />0.442 mg /L <br />0.010 <br />88 <br />80 <br />120 <br />Molybdenum <br />0.00498 mg /L <br />0.10 <br />Zinc <br />0.910 mg /L <br />0.010 <br />91 <br />80 <br />120 <br />Method: E200.7 <br />Batch: 42552 <br />Lab ID: MB -42552 <br />6 <br />Method Blank <br />Run: ICP4 -C 140911A <br />09/11/14 15:12 <br />Aluminum <br />ND mg /L <br />0.01 <br />Boron <br />ND mg /L <br />0.02 <br />Iron <br />ND mg /L <br />0.005 <br />Manganese <br />ND mg /L <br />0.002 <br />Molybdenum <br />ND mg /L <br />0.007 <br />Zinc <br />ND mg /L <br />0.003 <br />Lab ID: LCS3 -42552 <br />6 <br />Laboratory Control Sample <br />Run: ICP4- C_140911A <br />09/11/14 15:15 <br />Aluminum <br />2.6 mg /L <br />0.10 <br />106 <br />85 <br />115 <br />Boron <br />0.51 mg /L <br />0.10 <br />101 <br />85 <br />115 <br />Iron <br />2.6 mg /L <br />0.030 <br />104 <br />85 <br />115 <br />Manganese <br />2.5 mg /L <br />0.010 <br />99 <br />85 <br />115 <br />Molybdenum <br />0.50 mg /L <br />0.10 <br />101 <br />85 <br />115 <br />Zinc <br />0.49 mg /L <br />0.010 <br />98 <br />85 <br />115 <br />Lab ID: C14090226- 001DMS3 <br />6 <br />Sample Matrix Spike <br />Run: ICP4- C_140911A <br />09/11/14 15:30 <br />Aluminum <br />2.7 mg /L <br />0.10 <br />106 <br />70 <br />130 <br />Boron <br />0.53 mg /L <br />0.10 <br />100 <br />70 <br />130 <br />Iron <br />2.7 mg /L <br />0.030 <br />101 <br />70 <br />130 <br />Manganese <br />2.5 mg /L <br />0.010 <br />97 <br />70 <br />130 <br />Molybdenum <br />0.51 mg /L <br />0.10 <br />98 <br />70 <br />130 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - <br />Not detected at the reporting <br />limit. <br />MDC - Minimum detectable concentration <br />Page 12 of 26 <br />