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www.energylab.wm Helena, MT 877471 -0711 • Billings, MT N8- 735 -4469 • Casper, WY 888 -235 -0515 <br />- Mnry" Excmbm 00 �- - Gillette, WY 866 -666 -1175 • Rapid City, SD 88B -672 -1225 • College Station, TX 888 -690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />13 Laboratory Control Sample <br />Batch: 42551 <br />Lab ID: MB -42551 <br />13 Method Blank <br />Report Date: <br />09/26/14 <br />Project: Schwartz -SW 9/3/14 S27625 and S27660 <br />0.001 <br />mg /L <br />0.0007 <br />Antimony <br />Work Order: <br />C14090147 <br />Analyte <br />Count Result <br />Units <br />RL <br />%REC Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />0.0003 <br />Copper <br />0.0009 <br />mg /L <br />0.0002 <br />Analytical Run: ICPMS4- C_140910A <br />Lab ID: ICV <br />13 Initial Calibration <br />Verification <br />Standard <br />ND <br />mg /L <br />4E -05 <br />09/10/14 19:52 <br />Aluminum <br />0.0496 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Silver <br />Antimony <br />0.0499 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Uranium <br />Arsenic <br />0.0495 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />115 <br />Chromium <br />0.0489 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />Silver <br />Copper <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />0.483 <br />Iron <br />0.987 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />mg /L <br />Lead <br />0.0504 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />0.010 <br />Manganese <br />0.0509 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Molybdenum <br />0.0491 <br />mg /L <br />0.0010 <br />98 <br />90 <br />110 <br />MDC - Minimum detectable concentration <br />Silver <br />0.0208 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Thallium <br />0.0497 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Uranium <br />0.0486 <br />mg /L <br />0.00030 <br />97 <br />90 <br />110 <br />Zinc <br />0.0526 <br />mg /L <br />0.0010 <br />105 <br />90 <br />110 <br />Method: E200.8 <br />13 Laboratory Control Sample <br />Batch: 42551 <br />Lab ID: MB -42551 <br />13 Method Blank <br />2.42 <br />Run: ICPMS4 -C 140910A 09/11/14 06:35 <br />Aluminum <br />0.001 <br />mg /L <br />0.0007 <br />Antimony <br />ND <br />mg /L <br />0.0002 <br />Arsenic <br />ND <br />mg /L <br />0.0004 <br />Chromium <br />0.0005 <br />mg /L <br />0.0003 <br />Copper <br />0.0009 <br />mg /L <br />0.0002 <br />Iron <br />0.007 <br />mg /L <br />0.004 <br />Lead <br />ND <br />mg /L <br />4E -05 <br />Manganese <br />0.0002 <br />mg /L <br />0.0001 <br />Molybdenum <br />ND <br />mg /L <br />0.0002 <br />Silver <br />ND <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 />Zinc <br />0.002 <br />mg /L <br />0.0006 <br />Lab ID: LCS3 -42551 <br />13 Laboratory Control Sample <br />Run: ICPMS4- C_140910A 09/11/14 06:39 <br />Aluminum <br />2.42 <br />mg /L <br />0.030 <br />97 <br />85 <br />115 <br />Antimony <br />0.542 <br />mg /L <br />0.0010 <br />108 <br />85 <br />115 <br />Arsenic <br />0.495 <br />mg /L <br />0.0010 <br />99 <br />85 <br />115 <br />Chromium <br />0.503 <br />mg /L <br />0.0050 <br />101 <br />85 <br />115 <br />Copper <br />0.500 <br />mg /L <br />0.0050 <br />100 <br />85 <br />115 <br />Iron <br />2.54 <br />mg /L <br />0.030 <br />101 <br />85 <br />115 <br />Lead <br />0.513 <br />mg /L <br />0.0010 <br />103 <br />85 <br />115 <br />Manganese <br />2.51 <br />mg /L <br />0.0010 <br />100 <br />85 <br />115 <br />Molybdenum <br />0.518 <br />mg /L <br />0.0010 <br />104 <br />85 <br />115 <br />Silver <br />0.0496 <br />mg /L <br />0.0010 <br />99 <br />85 <br />115 <br />Thallium <br />0.483 <br />mg /L <br />0.00050 <br />97 <br />85 <br />115 <br />Uranium <br />0.525 <br />mg /L <br />0.00030 <br />105 <br />85 <br />115 <br />Zinc <br />0.517 <br />mg /L <br />0.010 <br />103 <br />85 <br />115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting <br />limit. <br />MDC - Minimum detectable concentration <br />Page 16 of 29 <br />