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wwmener ylab.com f Helena, MT 877- 472 -0711 + Billings, W 608- 735 -4489 * Casper, WY 888 - 235 -8515 <br />"6*xfExenes Siam tiff J Gillette, WY 866 -GBG -7175 • Rapid City, SD 886 -672 -1225 • College Station, TX 868 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />12/05/13 <br />Project: Schwartz GW 11/12/13 S27218 <br />Work Order: <br />013110612 <br />Analyte <br />Count Result Units <br />RL <br />° /cREC <br />Low Limit High Limit RPD <br />l <br />RPDLimit Qual <br />Method: <br />E245.1 <br />Analytical Run: CVAA_C203_131115A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />11/15/13 14:05 <br />Mercury <br />0.00484 mg /L <br />0.00010 <br />97 <br />90 110 <br />Method: <br />E245.1 <br />Batch: 131115A <br />Sample ID: <br />IPC <br />Instrument Performance Check Sample <br />Run: CVAA_C203_131115A <br />11/15/13 14:11 <br />Mercury <br />0.00521 mg /L <br />0.00010 <br />104 <br />95 105 <br />Method: <br />E245.1 <br />Batch. 39794 <br />Sample ID: <br />MB -39794 <br />Method Blank <br />Run: CVAA C203 131115A <br />11/15/13 14:27 <br />Mercury <br />ND mg /L <br />7E -05 <br />Sample ID: <br />LCS -39794 <br />Laboratory Control Sample <br />Run: CVAA_C203_131115A <br />11/15/13 14:28 <br />Mercury <br />0.00529 mg /L <br />0.00010 <br />106 <br />85 115 <br />Sample ID: <br />C13110616- 002DMS <br />Sample Matrix Spike <br />Run: CVAA_C203_131115A <br />11/15/13 15:13 <br />Mercury <br />0.00479 mg /L <br />0.00010 <br />96 <br />70 130 <br />Sample ID: <br />C13110616- 002DMSD <br />Sample Matrix Spike Duplicate <br />Run: CVAA_C203_131115A <br />11/15/13 15:15 <br />Mercury <br />0.00506 mg /L <br />0.00010 <br />101 <br />70 130 5.4 <br />10 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 13 of 21 <br />