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www.em&b.com � Helena, MT 877 -472 -0711 - Billings, MT 800 -735 -4469 - Casper, WY 888 -235 -6515 <br />°°'� <br />A'" 1ff2 Gillette, WY 866 -686 -1175 - Rapid City, SO 888- 672 -1225 - College Station, TX 888- 690 -1218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />4 Laboratory Fortified Blank <br />Batch: R177622 <br />Sample ID: LRB <br />4 Method Blank <br />Report Date: <br />09/05/13 <br />Project: Schwartz SW 8/6/13 S27019 <br />0.0005 <br />mg /L <br />0.0001 <br />Molybdenum <br />4E -05 <br />Work Order: <br />013080305 <br />Analyte Count <br />Result <br />Units <br />RL <br />° /.REC <br />Low Limit <br />High Limit RPD <br />l <br />RPDLimit Qual <br />Method: E200.8 <br />85 115 <br />Uranium <br />0.0532 mg /L <br />Analytical Run: ICPMS4- C_130826A <br />Sample ID: ICV 4 Initial Calibration Verification <br />Standard <br />Sample ID: C13080283- 001CMS4 <br />08/26/13 14:56 <br />Antimony <br />0.0502 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />0.0010 <br />Molybdenum <br />00472 <br />mg /L <br />0.0010 <br />94 <br />90 <br />110 <br />101 <br />Thallium <br />0.0508 <br />mg /L <br />0.0010 <br />102 <br />90 <br />110 <br />70 130 <br />Uranium <br />0.0504 <br />mg /L <br />0.00030 <br />101 <br />90 <br />110 <br />Method: E200.8 <br />4 Laboratory Fortified Blank <br />Batch: R177622 <br />Sample ID: LRB <br />4 Method Blank <br />08/26/13 14.00 <br />Run: ICPMS4- C_130826A 08/26/13 13:56 <br />Antimony <br />0.0005 <br />mg /L <br />0.0001 <br />Molybdenum <br />4E -05 <br />mg /L <br />3E -05 <br />Thallium <br />0.0001 <br />mg /L <br />6E -05 <br />Uranium <br />9E -06 <br />mg /L <br />9E -06 <br />Sample ID: LFB <br />4 Laboratory Fortified Blank <br />Run: ICPMS4- C_130826A <br />08/26/13 14.00 <br />Antimony <br />0.0516 mg /L <br />0.0010 <br />102 <br />85 115 <br />Molybdenum <br />0.0512 mg /L <br />0.0010 <br />102 <br />85 115 <br />Thallium <br />0.0539 mg /L <br />0.0010 <br />108 <br />85 115 <br />Uranium <br />0.0532 mg /L <br />0.00030 <br />106 <br />85 115 <br />Sample ID: C13080283- 001CMS4 <br />4 Sample Matrix Spike <br />Run: ICPMS4- C_130826A <br />08/26/13 18:11 <br />Antimony <br />0.0547 mg /L <br />0.0010 <br />109 <br />70 130 <br />Molybdenum <br />0.0515 mg /L <br />0.0010 <br />101 <br />70 130 <br />Thallium <br />0.0529 mg /L <br />0.00050 <br />106 <br />70 130 <br />Uranium <br />4.79 mg /L <br />0.00030 <br />70 130 <br />A <br />Sample ID: C13080283 -001 CMSD4 <br />4 Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130826A <br />08/26/13 18:15 <br />Antimony <br />0.0547 mg /L <br />0.0010 <br />109 <br />70 130 <br />0.0 <br />20 <br />Molybdenum <br />0.0511 mg /L <br />0.0010 <br />100 <br />70 130 <br />0.7 <br />20 <br />Thallium <br />0.0530 mg /L <br />0.00050 <br />106 <br />70 130 <br />0.1 <br />20 <br />Uranium <br />4.79 mg /L <br />0.00030 <br />70 130 <br />0.1 <br />20 A <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 15 of 25 <br />