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\ • ' www.emgylab.com Helena, MT 877- 472 -0711 • Billings, MT BOO -735 -4489 * Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -7175 - Rapid City, So 888- 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: 08/05/13 <br />Project: Schwartz GW 6/28/13 S27040 Work Order: C13070012 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Analytical Run: ICPMS4- C_130801A <br />Sample ID: ICV Initial Calibration Verification Standard 08/02/13 13:03 <br />Silver 0.0198 mg /L 0.0010 99 90 110 <br />Method: <br />E200.8 <br />Sample ID: <br />MB -38521 <br />Method Blank <br />Silver <br />ND mg /L <br />0.0002 <br />Sample ID: <br />LCS3 -38521 <br />Laboratory Control Sample <br />Silver <br />0.0485 mg /L <br />0.0010 <br />Sample ID: <br />013070970- 006AMS3 <br />Sample Matrix Spike <br />Silver <br />0.0475 mg /L <br />0.0010 <br />Sample ID: <br />C13070970- 006AMSD3 <br />Sample Matrix Spike Duplicate <br />Silver <br />0.0481 mg /L <br />0.0010 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run. ICPMS4- C_130801 A <br />Run: ICPMS4- C_130801 A <br />97 85 115 <br />Run: ICPMS4- C_130801 A <br />95 70 130 <br />Run: ICPMS4- C_130801 A <br />96 70 130 <br />ND - Not detected at the reporting limit. <br />Batch: 38521 <br />08/02/13 14 37 <br />08/02/13 14:42 <br />08/02/13 14.55 <br />08/02/13 14:59 <br />1.3 20 <br />Page 12 of 21 <br />