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www.ener&b.com <br />Ae>ry"E Amarsme.IlSY <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Helena, MT 177- 472 -0711 - Billings, MT 600 -735 -4489 - Casper, WY 888- 235 -1515 <br />Gillette, WY 866 -686 -7175 - Rapid City, SD 088- 672 -1225 - College Station, TX 888 - 690 -2218 <br />Revised Date: 03/06/14 <br />Client: Cotter Corporation Report Date: 02/24/14 <br />Project: Schwartz -SW 02/04/14 S27321 Work Order: 014020109 <br />Analyte Count Result Units RL ° /.REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS4- C_140207B <br />Sample ID: ICV <br />8 Initial Calibration Verification <br />Standard <br />02/07/14 12:15 <br />Antimony <br />0.0520 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Arsenic <br />0.0518 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Chromium <br />0.0502 <br />mg /L <br />00010 <br />100 <br />90 <br />110 <br />Copper <br />0.0514 <br />mg /L <br />0.0010 <br />103 <br />90 <br />110 <br />Lead <br />0.0495 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Silver <br />0.0180 <br />mg /L <br />0.0010 <br />90 <br />90 <br />110 <br />Thallium <br />0.0488 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Uranium <br />0.0478 <br />mg /L <br />0.00030 <br />96 <br />90 <br />110 <br />Method: E200.8 <br />Batch: 40544 <br />Sample ID: MB -40544 <br />8 Method Blank <br />Run: ICPMS4 -C 140207B <br />02/07/14 21:47 <br />Antimony <br />0.0006 <br />mg /L <br />0.0002 <br />Arsenic <br />0.0007 <br />mg /L <br />0.0004 <br />Chromium <br />0.002 <br />mg /L <br />00002 <br />Copper <br />ND <br />mg /L <br />6E -05 <br />Lead <br />0.0003 <br />mg /L <br />4E -05 <br />Silver <br />0.001 <br />mg /L <br />0.0002 <br />Thallium <br />ND <br />mg /L <br />6E -05 <br />Uranium <br />ND <br />mg /L <br />4E -05 <br />Sample ID: LCS3 -40544 <br />8 Laboratory Control Sample <br />Run: ICPMS4- C_140207B <br />02/07/14 21:52 <br />Antimony <br />0.56 <br />mg /L <br />0.0010 <br />113 <br />85 115 <br />Arsenic <br />0.51 <br />mg /L <br />0.0010 <br />101 <br />85 115 <br />Chromium <br />0.48 <br />mg /L <br />0.050 <br />97 <br />85 115 <br />Copper <br />0.48 <br />mg /L <br />0.010 <br />96 <br />85 115 <br />Lead <br />0.50 <br />mg /L <br />0.0010 <br />101 <br />85 115 <br />Silver <br />0.057 <br />mg /L <br />0.010 <br />112 <br />85 115 <br />Thallium <br />0.48 <br />mg /L <br />0.00040 <br />96 <br />85 115 <br />Uranium <br />0.54 <br />mg /L <br />0.00030 <br />108 <br />85 115 <br />Sample ID: C14020109 -001 DMS3 <br />8 Sample Matrix Spike <br />Run: ICPMS4- C_140207B <br />02/07/14 23:05 <br />Antimony <br />0.57 <br />mg /L <br />0.0010 <br />114 <br />70 130 <br />Arsenic <br />0.50 <br />mg /L <br />0.0010 <br />99 <br />70 130 <br />Chromium <br />0.49 <br />mg /L <br />0.050 <br />97 <br />70 130 <br />Copper <br />0.47 <br />mg /L <br />0 010 <br />94 <br />70 130 <br />Lead <br />0.52 <br />mg /L <br />0.0010 <br />104 <br />70 130 <br />Silver <br />0.055 <br />mg /L <br />0.010 <br />110 <br />70 130 <br />Thallium <br />0.50 <br />mg /L <br />0.00040 <br />100 <br />70 130 <br />Uranium <br />0.57 <br />mg /L <br />0.00030 <br />113 <br />70 130 <br />Sample ID: C14020109 -001 DMSD3 <br />8 Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_140207B <br />02/07/14 23:08 <br />Antimony <br />0.56 <br />mg /L <br />0.0010 <br />113 <br />70 130 <br />1.2 <br />20 <br />Arsenic <br />0.50 <br />mg /L <br />0.0010 <br />100 <br />70 130 <br />1.0 <br />20 <br />Chromium <br />0.49 <br />mg /L <br />0.050 <br />98 <br />70 130 <br />1.2 <br />20 <br />Copper <br />0.48 <br />mg /L <br />0.010 <br />95 <br />70 130 <br />1.4 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND <br />- Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 16 of 27 <br />