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Trust our People. Trust our Data. <br />MT 800.735.4489 • C,nsc,ei WY 888.235.0515 <br />College Station, TX 888.690.2218 • Gillette. WY 866.686.7175 • Helena. MI 817.472.0711 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz - GW 1 1/1 1/15 S28498 - S28500 <br />Report Date: 12/01/15 <br />Work Order: C15110422 <br />Analyte <br />Count Result Units <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 <br />Lab ID: ICV Initial Calibration Verification Standard <br />Mercury <br />0 00500 mg/L 0.00010 <br />100 90 <br />Analytical Run• CVAA_C203_151118B <br />11/18/15 14:19 <br />110 <br />Method: E245.1 <br />Lab ID: IPC <br />Mercury <br />Instrument Performance Check Sample <br />0.00527 mg/L 0.00010 <br />Run: CVAA_C203_1511186 <br />105 95 105 <br />Batch: 151118B <br />11/18/15 14:22 <br />Method: E245.1 <br />Lab ID: <br />Mercury <br />MB -46247 <br />Method Blank <br />ND mg/L <br />Lab ID: LCS-46247 Laboratory Control Sample <br />Mercury 0.00463 mg/L <br />Lab ID: C15110422-002BMS Sample Matrix Spike <br />Mercury 0.00466 mg/L <br />Lab ID: C15110422-002BMSD Sample Matrix Spike Duplicate <br />Mercury 0.00472 mg/L 0.00010 <br />0.0002 <br />0.00010 <br />0.00010 <br />Batch: 46247 <br />Run CVAA_C203_151118B 11/18/15 14:23 <br />Run: CVAA_C203_151118B 11/18/15 14 25 <br />93 85 115 <br />Run: CVAA_C203_1511186 11/18/15 15:00 <br />93 75 125 <br />Run: CVAA_C203_151118B 11/18/15 15:01 <br />94 75 125 1.4 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 8 of 16 <br />