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Trustour People. Trust our Data. Billings, MT 800.735.4489 - Caspet. WY 888.235.0515 <br />•` College Station, TX 888.690.2218 • Gillette, WY 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 7/01/15 S27975 <br />Analyte Count Result Units <br />Method: E200.8 <br />Report Date: 07/24/15 <br />Work Order: C15070092 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Analytical Run: ICPMS2-C_150708A <br />Lab ID: ICV 4 Initial Calibration Verification Standard 07/08/15 17:37 <br />Arsenic <br />0.0489 <br />mg/L <br />0.0010 <br />98 <br />90 <br />110 <br />Barium <br />0.0500 <br />mg/L <br />0.0010 <br />100 <br />90 <br />110 <br />Molybdenum <br />0.0495 <br />mg/L <br />0.0010 <br />99 <br />90 <br />110 <br />Uranium <br />0.0497 <br />mg/L <br />0.00030 <br />99 <br />90 <br />110 <br />Method: E200.8 <br />Lab ID: MB -45129 <br />4 <br />Method Blank <br />Arsenic <br />ND mg/L <br />Barium <br />ICPMS2-C <br />4E-05 mg/L <br />Molybdenum <br />07/08/1518:34 <br />ND mg/L <br />Uranium <br />2E-05 mg/L <br />Lab ID: LCS3-45129 <br />4 <br />Laboratory Control Sample <br />Arsenic <br />0.498 mg/L <br />Barium <br />0.497 mg/L <br />Molybdenum <br />8E-05 <br />0.509 mg/L <br />Uranium <br />0.536 mg/L <br />Lab ID: C15070092-001BMS3 <br />4 <br />Sample Matrix Spike <br />Arsenic <br />0.493 mg/L <br />Barium <br />0.530 mg/L <br />Molybdenum <br />0.779 mg/L <br />Uranium <br />4.63 mg/L <br />Lab ID: C15070092-001 BMSD <br />4 <br />Sample Matrix Spike Duplicate <br />Arsenic <br />85 <br />0.493 mg/L <br />Barium <br />0.535 mg/L <br />Molybdenum <br />0.787 mg/L <br />Uranium <br />4.71 mg/L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 6 of 13 <br />Batch: 45129 <br />Run: <br />ICPMS2-C <br />150708A <br />07/08/1518:34 <br />0.0003 <br />2E-05 <br />8E-05 <br />9E-06 <br />Run: <br />ICPMS2-C_150708A <br />07/08/1518:37 <br />0.0010 <br />100 <br />85 <br />115 <br />0.050 <br />99 <br />85 <br />115 <br />0.0010 <br />102 <br />85 <br />115 <br />0.00030 <br />107 <br />85 <br />115 <br />Run: <br />ICPMS2-C_150708A <br />07/08/15 18:55 <br />0.0010 <br />96 <br />70 <br />130 <br />0.050 <br />102 <br />70 <br />130 <br />0.0010 <br />100 <br />70 <br />130 <br />0.00030 <br />70 <br />130 <br />A <br />Run: <br />ICPMS2-C_150708A <br />07/08/1519:07 <br />0.0010 <br />96 <br />70 <br />130 <br />0.1 <br />20 <br />0.050 <br />102 <br />70 <br />130 <br />0.9 <br />20 <br />0.0010 <br />101 <br />70 <br />130 <br />1.0 <br />20 <br />0.00030 <br />70 <br />130 <br />1.7 <br />20 A <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 6 of 13 <br />