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www.energylab.com I Helena, MT 877- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />A"aWW Eadaw 9' Iasi Gillette, wY 866 -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 <br />5 <br />Initial Calibration Verification Standard <br />0.0528 mg /L 0.0010 <br />0.0504 mg /L 0.0010 <br />0.0506 mg /L 0.0010 <br />0.0507 mg /L 0.0010 <br />0.0516 mg /L 0.0010 <br />106 <br />101 <br />101 <br />101 <br />103 <br />90 <br />90 <br />90 <br />90 <br />90 <br />Analytical Run: ICPMS2- C_130423A <br />04/23/13 12-17 <br />110 <br />110 <br />110 <br />110 <br />110 <br />Report Date: <br />05/06/13 <br />Project: Schwartz GW 4/11/13 S26889 <br />Work Order: <br />C13040486 <br />Analyte Count <br />Result <br />Units <br />RL <br />%REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />0.0003 mg /L <br />6E -05 <br />Batch: R172523 <br />Sample ID: C13040361- 003BMSD 8 Sample <br />Matrix <br />Spike Duplicate <br />0.0002 <br />Run: ICPMS2- C_130416A <br />04/16/13 15:52 <br />Molybdenum <br />0.0552 <br />mg /L <br />0.0010 <br />108 <br />70 <br />130 0.9 <br />20 <br />Thallium <br />0.0541 <br />mg /L <br />0.00050 <br />108 <br />70 <br />130 0.2 <br />20 <br />Uranium <br />0.156 <br />mg /L <br />0.00030 <br />110 <br />70 <br />130 0.1 <br />20 <br />Zinc <br />0.0499 <br />mg /L <br />0.010 <br />90 <br />70 <br />130 0.7 <br />20 <br />Method: E200.8 <br />Sample ID: ICV <br />Antimony <br />Arsenic <br />Copper <br />Lead <br />Thallium <br />5 <br />Initial Calibration Verification Standard <br />0.0528 mg /L 0.0010 <br />0.0504 mg /L 0.0010 <br />0.0506 mg /L 0.0010 <br />0.0507 mg /L 0.0010 <br />0.0516 mg /L 0.0010 <br />106 <br />101 <br />101 <br />101 <br />103 <br />90 <br />90 <br />90 <br />90 <br />90 <br />Analytical Run: ICPMS2- C_130423A <br />04/23/13 12-17 <br />110 <br />110 <br />110 <br />110 <br />110 <br />Method: E200.8 <br />Batch: 37226 <br />Sample ID: MB -37226 <br />5 <br />Method Blank <br />Run: ICPMS2- C_130423A <br />04/23/13 23:01 <br />Antimony <br />0.0003 mg /L <br />6E -05 <br />Arsenic <br />ND mg /L <br />0.0002 <br />Copper <br />0.0002 mg /L <br />00001 <br />Lead <br />ND mg /L <br />2E -05 <br />Thallium <br />ND mg /L <br />4E -05 <br />Sample ID: LCS3 -37226 <br />5 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130423A <br />04/23/13 23:05 <br />Antimony <br />0.532 mg /L <br />0.0010 <br />106 <br />85 <br />115 <br />Arsenic <br />0.507 mg /L <br />0.0010 <br />101 <br />85 <br />115 <br />Copper <br />0.493 mg /L <br />0.0050 <br />99 <br />85 <br />115 <br />Lead <br />0.528 mg /L <br />0.0010 <br />106 <br />85 <br />115 <br />Thallium <br />0.501 mg /L <br />0.00050 <br />100 <br />85 <br />115 <br />Sample ID: C13040436 -001 DMS3 <br />5 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130423A <br />04/23/13 23:23 <br />Antimony <br />0.512 mg /L <br />0.0010 <br />102 <br />70 <br />130 <br />Arsenic <br />0.474 mg /L <br />0.0010 <br />94 <br />70 <br />130 <br />Copper <br />0.476 mg /L <br />0.0050 <br />95 <br />70 <br />130 <br />Lead <br />0.523 mg /L <br />0.0010 <br />105 <br />70 <br />130 <br />Thallium <br />0.508 mg /L <br />0.00050 <br />102 <br />70 <br />130 <br />Sample ID: C13040436- 00lDMSD <br />5 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130423A <br />04/23/13 23:39 <br />Antimony <br />0.515 mg /L <br />0.0010 <br />103 <br />70 <br />130 <br />0.5 <br />20 <br />Arsenic <br />0.476 mg /L <br />0.0010 <br />95 <br />70 <br />130 <br />0.3 <br />20 <br />Copper <br />0.477 mg /L <br />0.0050 <br />95 <br />70 <br />130 <br />0.3 <br />20 <br />Lead <br />0.522 mg /L <br />0.0010 <br />104 <br />70 <br />130 <br />0.2 <br />20 <br />Thallium <br />0.508 mg /L <br />000050 <br />102 <br />70 <br />130 <br />0.0 <br />20 <br />Qualifiers: <br />RL - Analyte reporting limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 11 of 21 <br />