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www.ewgylab.com J Helena, MT 811- 472 -0711 • Billings, W 800- 735 -4469 • Casper, WY 888- 235 -8515 <br />9m IM Gillette, WY $66 -686 -7175 • Rapid City, SO 886- 672 -1225 • College Station, TX 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 08/08/13 <br />Project: Schwartz -GW 7/10/13 S27017 Work Order: C13070431 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E245.1 Analytical Run: CVAA_C203_130716A <br />Sample ID: ICV Initial Calibration Verification Standard 07/16/13 15:48 <br />Mercury 0.00459 mg /L 0.00010 92 90 110 <br />Method: <br />E245.1 <br />Sample ID: <br />MB -38264 <br />Mercury <br />Sample ID: <br />LCS -38264 <br />Mercury <br />Sample ID: <br />C13070431- 001DMS <br />Mercury <br />Sample ID: <br />013070431- OOlDMSD <br />Mercury <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Method Blank <br />ND mg /L <br />Laboratory Control Sample <br />0.00510 mg /L <br />Sample Matrix Spike <br />0.00494 mg /L <br />Sample Matrix Spike Duplicate <br />0.00516 mg /L <br />Run: CVAA_C203_130716A <br />7E -05 <br />Run: CVAA_C203_130716A <br />0.00010 102 80 120 <br />Run: CVAA_C203_130716A <br />0.00010 99 70 130 <br />Run: CVAA_C203_130716A <br />0.00010 103 70 130 <br />ND - Not detected at the reporting limit. <br />Batch: 38264 <br />07/16/13 15:55 <br />07/16/13 15:56 <br />07/16/13 16:07 <br />07/16/13 16:08 <br />4.2 10 <br />Page 12 of 20 <br />