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�- www.erwolab -mm Helena, W 871 472 -0711 - Billings, MT 808 -735 -4489 - Casper, WY 888- 235 -0515 <br />ba"MEnallVWrrSMc.199 Gillette, WY 866 -686 -7175 - Rapid City, SO 8BB -672 -1225 - College Station, TX 868- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 09/26/14 <br />Project: Schwartz -SW 9/3/14 S27625 and S27660 Work Order: C14090147 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140923A <br />Analytical Run: ICPMS2- C_140923A <br />Lab ID: ICV <br />7 Initial Calibration Verification <br />Standard <br />0.0010 <br />106 <br />09/23/14 13:47 <br />Antimony <br />0.0494 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Copper <br />0.0496 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Molybdenum <br />0.0487 <br />mg /L <br />0.0010 <br />97 <br />90 <br />110 <br />Silver <br />0.0204 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />Thallium <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Uranium <br />0.0507 <br />mg /L <br />0.00030 <br />101 <br />90 <br />110 <br />Zinc <br />0.0516 <br />mg /L <br />0.0010 <br />103 <br />90 <br />110 <br />Method: E200.8 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140923A <br />Batch: R191474 <br />Lab ID: LRB <br />7 Method Blank <br />mg /L <br />0.0010 <br />106 <br />Run: ICPMS2- C_140923A <br />09/23/14 14:36 <br />Antimony <br />ND <br />mg /L <br />6E -05 <br />0.0050 <br />101 <br />70 130 <br />Copper <br />ND <br />mg /L <br />0.0001 <br />mg /L <br />0.0010 <br />103 <br />Molybdenum <br />ND <br />mg /L <br />4E -05 <br />0.0204 <br />mg /L <br />0.0010 <br />Silver <br />ND <br />mg /L <br />5E -05 <br />Thallium <br />0.0494 <br />mg /L <br />Thallium <br />ND <br />mg /L <br />9E -06 <br />20 <br />Uranium <br />0.0564 <br />Uranium <br />ND <br />mg /L <br />1 E -05 <br />1.4 <br />20 <br />Zinc <br />Zinc <br />ND <br />mg /L <br />0.0006 <br />70 130 <br />2.0 <br />20 <br />Lab ID: LFB - non filtered <br />7 Laboratory Fortified <br />Blank <br />Run: ICPMS2- C_140923A <br />09/23/14 14:43 <br />Antimony <br />0.0523 <br />mg /L <br />0.0010 <br />105 <br />85 115 <br />Copper <br />0.0523 <br />mg /L <br />0.0010 <br />105 <br />85 115 <br />Molybdenum <br />0.0522 <br />mg /L <br />0.0010 <br />104 <br />85 115 <br />Silver <br />0.0209 <br />mg /L <br />0.0010 <br />104 <br />85 115 <br />Thallium <br />0.0509 <br />mg /L <br />0.0010 <br />102 <br />85 115 <br />Uranium <br />0.0507 <br />mg /L <br />0.00030 <br />101 <br />85 115 <br />Zinc <br />0.0542 <br />mg /L <br />0.0010 <br />108 <br />85 115 <br />Lab ID: 014090144- 001CMS3 <br />7 Sample Matrix Spike <br />Run: ICPMS2- C_140923A <br />09/24/14 06:12 <br />Antimony <br />0.0520 <br />mg /L <br />0.0010 <br />104 <br />70 130 <br />Copper <br />0.0502 <br />mg /L <br />0.0050 <br />98 <br />70 130 <br />Molybdenum <br />0.0517 <br />mg /L <br />0.0010 <br />102 <br />70 130 <br />Silver <br />0.0201 <br />mg /L <br />0.0010 <br />101 <br />70 130 <br />Thallium <br />0.0486 <br />mg /L <br />0.00050 <br />97 <br />70 130 <br />Uranium <br />0.0556 <br />mg /L <br />0.00030 <br />104 <br />70 130 <br />Zinc <br />0.0543 <br />mg /L <br />0.010 <br />105 <br />70 130 <br />Lab ID: C14090144- 001CMSD 7 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140923A <br />09/24/14 06:15 <br />Antimony <br />0.0531 <br />mg /L <br />0.0010 <br />106 <br />70 130 <br />2.1 <br />20 <br />Copper <br />0.0519 <br />mg /L <br />0.0050 <br />101 <br />70 130 <br />3.2 <br />20 <br />Molybdenum <br />0.0522 <br />mg /L <br />0.0010 <br />103 <br />70 130 <br />1.0 <br />20 <br />Silver <br />0.0204 <br />mg /L <br />0.0010 <br />102 <br />70 130 <br />1.2 <br />20 <br />Thallium <br />0.0494 <br />mg /L <br />0.00050 <br />99 <br />70 130 <br />1.4 <br />20 <br />Uranium <br />0.0564 <br />mg /L <br />0.00030 <br />106 <br />70 130 <br />1.4 <br />20 <br />Zinc <br />0.0554 <br />mg /L <br />0.010 <br />107 <br />70 130 <br />2.0 <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 14 of 29 <br />