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ENERGY <br />LABORATORIES <br />www.energylab.com Helena, MT 877 472 - 0711 • Billings, MT 800 - 735 - 4489 • Casper, WY 888 235 - 0515 <br />Analytical Excellence Since 1952 I Gillette, WY 866- 686 -7175 • Rapid City, SD 888 -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: 10/18/12 <br />Project: Schwartz GW 9/13/12 S26638 Work Order: C12090499 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua! <br />Method: E200.7 <br />Sample ID: C12090499- 001CMS2 7 Sample Matrix Spike Run: ICP2- C_121016A <br />Calcium 405 mg /L 1.0 84 70 130 <br />Copper 2.01 mg /L 0.0050 98 70 130 <br />Manganese 3.41 mg /L 0.0010 96 70 130 <br />Molybdenum 2.03 mg /L 0.0072 85 70 130 <br />Potassium 101 mg /L 1.0 82 70 130 <br />Sodium 235 mg /L 1.0 98 70 130 <br />Zinc 2.00 mg /L 0.010 96 70 130 <br />Sample ID: C12090499- 001CMSD 7 Sample Matrix Spike Duplicate Run: ICP2- C_121016A 10/16/12 15:31 <br />Calcium 407 mg /L 1.0 86 70 130 0.6 20 <br />Copper 2.01 mg /L 0.0050 98 70 130 0.2 20 <br />Manganese 3.45 mg /L 0.0010 97 70 130 1.1 20 <br />Molybdenum 2.07 mg /L 0.0072 87 70 130 1.9 20 <br />Potassium 104 mg /L 1.0 86 70 130 3.3 20 <br />Sodium 237 mg /L 1.0 101 70 130 1.1 20 <br />Zinc 2.02 mg /L 0.010 97 70 130 0.7 20 <br />Method: E200.7 <br />Sample ID: ICV 2 Initial Calibration Verification Standard <br />Boron 1.01 mg /L 0.10 101 95 105 <br />Iron 4.88 mg /L 0.030 98 95 105 <br />Sample ID: ICSA 2 Interference Check Sample A <br />Boron - 0.00155 mg /L 0.10 <br />Iron 170 mg /L 0.030 85 80 120 <br />Sample ID: ICSAB 2 Interference Check Sample AB <br />Boron 0.000540 mg /L 0.10 <br />Iron 171 mg /L 0.030 86 80 120 <br />Method: E200.7 <br />Sample ID: MB -35047 2 Method Blank <br />Boron ND mg /L <br />Iron ND mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />0.003 <br />0.004 <br />Run: ICP4- C_121011 A <br />Sample ID: LCS3 -35047 2 Laboratory Control Sample Run: ICP4- C_121011A <br />Boron 0.543 mg /L 0.050 109 85 115 <br />Iron 2.65 mg /L 0.030 106 85 115 <br />Sample ID: C12090499- 001DMS3 2 Sample Matrix Spike Run: ICP4- C_121011A <br />Boron 0.743 mg /L 0.050 98 70 130 <br />Iron 2.51 mg /L 0.030 100 70 130 <br />ND - Not detected at the reporting limit. <br />Batch: R165910 <br />10/16/12 15:27 <br />Analytical Run: ICP4- C_121011A <br />10/11/12 15:15 <br />10/11/12 15:29 <br />10/11/12 15:33 <br />Batch: 35047 <br />10/11/12 19:44 <br />10/11/12 19:47 <br />10/11/12 19:59 <br />Sample ID: C12090499- 001DMSD 2 Sample Matrix Spike Duplicate Run: ICP4- C_121011A 10/11/12 20:03 <br />Boron 0.766 mg /L 0.050 102 70 130 3.0 20 <br />Iron 2.55 mg /L 0.030 102 70 130 1.5 20 <br />Page 10 of 23 <br />