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ENERGY <br />LA ORAJ OPIE..S <br />Helena, W 677.472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -7175 • Rapid City, SD 088 -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: 05/01/13 <br />Project: Schwartz SW 4/03/13 S26860 Work Order: C13040198 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua[ <br />Method: E200.8 <br />Initial Calibration Verification Standard <br />0.0501 mg /L 0.0010 <br />100 <br />Analytical Run: ICPMS2- C_130430A <br />04/30/13 14.01 <br />90 110 <br />Method: E200.8 <br />Batch: R172395 <br />Sample ID: C13040217- 003BMSD <br />9 Sample Matrix <br />Spike Duplicate <br />Run: ICPMS2- C_130411A <br />04/30/13 18:57 <br />04/12/13 01:25 <br />Aluminum <br />0.0960 <br />mg /L <br />0.030 <br />96 <br />70 <br />130 <br />0.4 <br />20 <br />Antimony <br />0.106 <br />mg /L <br />0.0010 <br />106 <br />70 <br />130 <br />1.3 <br />20 <br />Copper <br />0.0961 <br />mg /L <br />0.0050 <br />93 <br />70 <br />130 <br />0.0 <br />20 <br />Manganese <br />1.94 <br />mg /L <br />0.0010 <br />70 <br />130 <br />0.4 <br />20 A <br />Molybdenum <br />0.137 <br />mg /L <br />0.0010 <br />107 <br />70 <br />130 <br />1.3 <br />20 <br />Silver <br />0.0359 <br />mg /L <br />0.0010 <br />90 <br />70 <br />130 <br />3.5 <br />20 <br />Thallium <br />0.107 <br />mg /L <br />0.00050 <br />107 <br />70 <br />130 <br />2.5 <br />20 <br />Uranium <br />0.560 <br />mg /L <br />0.00030 <br />70 <br />130 <br />1.5 <br />20 A <br />Zinc <br />0.103 <br />mg /L <br />0.010 <br />84 <br />70 <br />130 <br />0.8 <br />20 <br />Method: E200.8 <br />Sample ID: ICV <br />Chromium <br />Initial Calibration Verification Standard <br />0.0501 mg /L 0.0010 <br />100 <br />Analytical Run: ICPMS2- C_130430A <br />04/30/13 14.01 <br />90 110 <br />Method: E200.8 <br />Batch: 37317 <br />Sample ID: C13040844- 009AMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130430A <br />04/30/13 18:57 <br />Chromium <br />0.476 mg /L <br />0.0050 <br />95 <br />70 130 <br />Sample ID: C13040844- 009AMSD <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130430A <br />04/30/13 18:59 <br />Chromium <br />0.472 mg /L <br />0.0050 <br />94 <br />70 130 0.9 <br />20 <br />Sample ID: MB -37317 <br />Method Blank <br />Run: ICPMS2- C_130430A <br />04/30/13 18:45 <br />Chromium <br />0.003 mg /L <br />0.0001 <br />Sample ID: LCS3 -37317 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130430A <br />04/30/13 18:48 <br />Chromium <br />0.496 mg /L <br />0.0050 <br />99 <br />85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 14 of 25 <br />