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• �: 1 Trust our People.Trust our Data. Billings, MT 800.735.4489 • Casper. 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 -SW 3/3/15 S28121,S28124 <br />Analyte Count Result Units <br />Method: E245.1 <br />Lab ID: ICV Initial Calibration Verification <br />Mercury 0.00547 mg/L <br />Report Date: 03/30/15 <br />Work Order: C15030087 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />nalytical Run: LOAN ER_CVAA_HG_QT_150309A <br />Standard 03/09/15 14:33 <br />0.00010 109 90 110 <br />Method: <br />E245.1 <br />Mercury <br />Batch: 150309A <br />Lab ID: <br />IPC <br />Instrument Performance Check Sample Run: LOAN ER_CVAA_HG_QT_150 <br />03/09/15 14:41 <br />Mercury <br />Sample Matrix Spike Duplicate <br />0.00522 mg/L 0.00010 104 95 105 <br />0.00464 mq/L <br />Method: <br />E245.1 <br />Batch: 44095 <br />Lab ID: <br />MB -44095 <br />Method Blank Run: LOANER CVAA HG QT 150 <br />03/09/15 14:54 <br />Mercury <br />ND mg/L 0.0001 <br />Lab ID: LCS-44095 <br />Laboratory Control Sample <br />Mercury <br />0.00547 mg/L <br />Lab ID: 015030166-003CMS <br />Sample Matrix Spike <br />Mercury <br />0.00444 mg/L <br />Lab ID: 015030166-003CMSD <br />Sample Matrix Spike Duplicate <br />Mercury <br />0.00464 mq/L <br />Run: LOAN ER_CVAA_HG_QT_150 03/09/15 14:55 <br />0.00010 109 85 115 <br />Run: LOAN ER_CVAA_HG_QT_150 03/09/15 15:34 <br />0.00015 89 75 125 <br />Run: LOAN ER_CVAA_HG_QT_150 03/09/15 15:36 <br />0.00015 93 75 125 4.5 20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 11 of 18 <br />