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Trust our People. Tiu:t our Data, <br />t.iling:. MT 800.735.4489 • Cafer t°rY 888.235.0515 <br />College Station, TX 888.690.2218 • Sil ntte ;iY 866.686.7175 • Helena Mt 877.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz - GW 11/24/15 S28753, S28755 <br />Report Date: 12/08/15 <br />Work Order: C151 10756 <br />Analyte <br />Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.7 <br />Lab ID: ICV 3 Initial Calibration Verification Standard <br />Aluminum <br />Antimony <br />Copper <br />Lab ID: ICSA <br />Aluminum <br />Antimony <br />Copper <br />Silver <br />Thallium <br />4.98 mg/L <br />0.989 mg/L <br />0 970 mg/L <br />0.10 100 95 105 <br />0.10 99 95 105 <br />0.010 97 95 105 <br />5 Interference Check Sample A <br />479 mg/L 0.10 96 80 120 <br />-0.0201 mg/L 0.10 <br />0.00116 mg/L 0.010 <br />0.00496 mg/L 0.010 <br />-0.0301 mg/L 0.10 <br />Lab ID: ICSAB 3 Interference Check Sample AB <br />Aluminum 466 mg/L 0.10 93 80 120 <br />Copper 0.456 mg/L 0 010 91 80 120 <br />Silver 0.900 mg/L 0 010 90 80 120 <br />Analytical Run: ICP4-C_151130A <br />11/30/15 10:26 <br />11/30/15 10:51 <br />11/30/15 10:56 <br />Method: E200.7 <br />Lab ID: MB -46319 5 Method Blank <br />Aluminum 0.01 mg/L 0.01 <br />Antimony 0.02 mg/L 0.006 <br />Copper ND mg/L 0.004 <br />Silver ND mg/L 0.005 <br />Thallium ND mg/L 0.02 <br />Run ICP4-C 151130A <br />Lab ID: LCS3-46319 5 Laboratory Control Sample Run: ICP4-C_151130A <br />Aluminum 2 5 mg/L 0.10 101 85 115 <br />Antimony 0.51 mg/L 0.040 98 85 115 <br />Copper 0.49 mg/L 0 010 99 85 115 <br />Silver 0.050 mg/L 0 010 100 85 115 <br />Thallium 0.51 mg/L 0.040 101 85 115 <br />Lab ID: <br />Aluminum <br />Antimony <br />Copper <br />Silver <br />Thallium <br />C15110663-005BMS3 <br />5 Sample Matrix Spike <br />2.42 mg/L <br />0.441 mg/L <br />0 456 mg/L <br />0.0451 mg/L <br />0 373 mg/L <br />Run: ICP4-C_151130A <br />0.030 94 70 130 <br />0.047 88 70 130 <br />0.0050 90 70 130 <br />0.0062 90 70 130 <br />0.055 75 70 130 <br />Batch: 46319 <br />11/30/15 23.20 <br />11/30/15 23:24 <br />12/01/15 00:07 <br />Lab ID: C15110663-005BMSD 5 Sample Matrix Spike Duplicate Run: ICP4-C_151130A 12/01/15 00:11 <br />Aluminum 2.42 mg/L 0.030 94 70 130 0 2 20 <br />Antimony 0.470 mg/L 0.047 94 70 130 6.2 20 <br />Copper 0.461 mg/L 0.0050 91 70 130 10 20 <br />Silver 0.0455 mg/L 0.0062 91 70 130 0.8 20 <br />Thallium 0.394 mg/L 0.055 79 70 130 5.7 20 <br />Method: E200.7 Batch. R206978 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit <br />Page 5 of 20 <br />