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- www.enerdab.com � Helena, lilt 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 - 235 -8515 <br />fttftsf °s m IN2 Gillette, WY 866 -666 -7175 • Rapid City, SD 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: 06/11/13 <br />Project: Schwartz GW 05/18/13 S26985 & S26986 Work Order: 013050721 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Analytical Run: ICPMS4- C_130606A <br />Sample ID: ICV 2 Initial Calibration Verification Standard 06/06/13 17:14 <br />Copper 0.0521 mg /L 0.0010 104 90 110 <br />Silver 0.0206 mg /L 0.0010 103 90 110 <br />Method: E200.8 <br />Batch: 37571 <br />Sample ID: MB -37571 <br />Method Blank <br />Run: ICPMS4- C_130606A <br />06/07/13 01:57 <br />Silver <br />ND mg /L <br />0.0002 <br />Sample ID: LCS3 -37571 <br />Laboratory Control Sample <br />Run: ICPMS4- C_130606A <br />06/07/13 02:01 <br />Silver <br />0.0504 mg /L <br />0.0010 <br />101 <br />85 115 <br />Sample ID: C13050708- 002DMS3 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130606A <br />06/07/13 02:18 <br />Silver <br />0.0488 mg /L <br />0.0010 <br />98 <br />70 130 <br />Sample ID: C13050708- 002DMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130606A <br />06/07/13 02:21 <br />Silver <br />0.0496 mg /L <br />0.0010 <br />99 <br />70 130 1.6 <br />20 <br />Method: E200.8 <br />Batch: R174566 <br />Sample ID: LRB <br />Method Blank <br />Run: ICPMS4- C_130606A <br />06/06/13 17:48 <br />Copper <br />ND mg /L <br />3E -05 <br />Sample ID: LFB <br />Laboratory Fortified Blank <br />Run: ICPMS4- C_130606A <br />06/06/13 17:53 <br />Copper <br />0.0522 mg /L <br />0.0010 <br />104 <br />85 115 <br />Sample ID: C13050725- 001CMS4 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130606A <br />06/06/13 22:41 <br />Copper <br />0.0502 mg /L <br />0.0050 <br />96 <br />70 130 <br />Sample ID: C13050725- 001CMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130606A <br />06/06/13 22:45 <br />Copper <br />0.0509 mg /L <br />0.0050 <br />97 <br />70 130 1.2 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 14 of 24 <br />