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Tru.7t our People.Trust our Data, <br />Filing:, MT 800335.4489 • Cas:,er WY 888.235.0515 <br />College Staten TX 888.690.2218 • ialndie 1rY 866.6863175 • Helena. MT 871.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz - GW 11/11/15 S28498 - S28500 <br />Report Date: 12/01/15 <br />Work Order: C15110422 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: <br />Lab ID: MB -46245 <br />Aluminum <br />Copper <br />E200.7 <br />2 Method Blank <br />ND mg/L <br />ND mg/L <br />0.01 <br />0.004 <br />Run. ICP4-C_151118A <br />Batch: 46245 <br />11/18/15 18:16 <br />Lab ID: LCS3-46245 2 Laboratory Control Sample Run: ICP4-C_151118A 11/18/15 1820 <br />Aluminum 2.51 mg/L 0.030 100 85 115 <br />Copper 0.494 mg/L 0.0050 99 85 115 <br />Lab ID: C15110416-001DMS3 2 Sample Matrix Spike Run- ICP4-C_151118A 11/18/15 18:37 <br />Aluminum 2.52 mg/L 0.075 98 70 130 <br />Copper 0.501 mg/L 0.022 96 70 130 <br />Lab ID: C15110416-001DMSD 2 Sample Matrix Spike Duplicate Run ICP4-C_151118A 11/18/15 18:41 <br />Aluminum 2 50 mg/L 0.075 98 70 130 0.9 20 <br />Copper 0.508 mg/L 0.022 97 70 130 1.4 20 <br />Method: E200.7 <br />Lab ID: ICV 2 Initial Calibration Verification Standard 11/19/15 11.53 <br />Aluminum 5.00 mg/L 010 100 95 105 <br />Copper 0.962 mg/L 0.010 96 95 105 <br />Analytical Run• ICP4-C_151119A <br />Lab ID: ICSA 2 Interference Check Sample A <br />Aluminum 485 mg/L 0.10 97 80 120 <br />Copper 0.000590 mg/L 0.010 <br />Lab ID: ICSAB 2 Interference Check Sample AB <br />Aluminum 486 mg/L 0.10 97 80 120 <br />Copper 0.471 mg/L0.010 94 80 120 <br />11/19/15 12:18 <br />11/19/15 12:23 <br />Method: E200.7 Batch 46245 <br />Lab ID: MB -46245 2 Method Blank Run: ICP4-C_151119A 11/19/15 17:35 <br />Aluminum ND mg/L 0.01 <br />Copper ND mg/L 0.004 <br />Lab ID: LCS3-46245 2 Laboratory Control Sample Run: ICP4-C_151119A 11/19/15 17:39 <br />Aluminum 2 58 mg/L 0.030 103 85 115 <br />Copper 0.500 mg/L 0.0050 100 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit <br />Page 5 of 16 <br />