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w www.ereg0ab.com Helena, MT 877 -472 -0711 • Billings, MT 800- 7354489 • Casper, WY 888- 235 -8515 <br />g*'#"Ewsh"p$10mtM f Gillette, WY 866 -666 -7175 • Rapid City, SD 886- 672 -1225 • College Station, TX 868 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />02/25/14 <br />Project: Schwartz -SW 2/4/14 S27322 <br />Work Order: <br />C14020114 <br />I- Analyte Count Result <br />Units <br />RL <br />° /.REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />Analytical Run: ICPMS2- C_140221A <br />Sample ID: ICV 6 <br />Initial Calibration Verification Standard <br />02/21/14 13:29 <br />Antimony <br />0.0522 <br />mg /L <br />0.0010 <br />104 <br />90 <br />110 <br />Copper <br />0.0495 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Molybdenum <br />0.0500 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Silver <br />0.0190 <br />mg /L <br />0.0010 <br />95 <br />90 <br />110 <br />Thallium <br />0.0493 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Uranium <br />0.0500 <br />mg /L <br />0.00030 <br />100 <br />90 <br />110 <br />Sample ID: ICV 6 <br />Initial Calibration Verification Standard <br />02/21/14 1824 <br />Antimony <br />0.0529 <br />mg /L <br />0.0010 <br />106 <br />90 <br />110 <br />Copper <br />0.0498 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Molybdenum <br />0.0506 <br />mg /L <br />0.0010 <br />101 <br />90 <br />110 <br />Silver <br />0.0201 <br />mg /L <br />0.0010 <br />100 <br />90 <br />110 <br />Thallium <br />0.0494 <br />mg /L <br />0.0010 <br />99 <br />90 <br />110 <br />Uranium <br />0.0504 <br />mg /L <br />0.00030 <br />101 <br />90 <br />110 <br />Method: E200.8 <br />Batch: R183881 <br />Sample ID: LRB 6 <br />Method Blank <br />Run: ICPMS2 -C 140221A <br />02/21/14 14:15 <br />Antimony <br />0.0001 <br />mg /L <br />6E -05 <br />Copper <br />ND <br />mg /L <br />0.0001 <br />Molybdenum <br />ND <br />mg /L <br />4E -05 <br />Silver <br />ND <br />mg /L <br />5E -05 <br />Thallium <br />ND <br />mg /L <br />9E -06 <br />Uranium <br />ND <br />mg /L <br />1 E -05 <br />Sample ID: LFB 6 <br />Laboratory Fortified Blank <br />Run: ICPMS2- C_140221A <br />02/21/14 14:18 <br />Antimony <br />0.0481 <br />mg /L <br />0.0010 <br />96 <br />85 <br />115 <br />Copper <br />0.0533 <br />mg /L <br />0.0010 <br />107 <br />85 <br />115 <br />Molybdenum <br />0.0501 <br />mg /L <br />00010 <br />100 <br />85 <br />115 <br />Silver <br />0.0203 <br />mg /L <br />0.0010 <br />101 <br />85 <br />115 <br />Thallium <br />0.0532 <br />mg /L <br />0.0010 <br />106 <br />85 <br />115 <br />Uranium <br />0.0537 <br />mg /L <br />0.00030 <br />107 <br />85 <br />115 <br />Sample lD: C14020462 -001 BMS4 6 <br />Sample Matrix Spike <br />Run: ICPMS2- C_140221 A <br />02/21/14 20:14 <br />Antimony <br />0.124 <br />mg /L <br />0.0010 <br />124 <br />70 <br />130 <br />Copper <br />0.0951 <br />mg /L <br />0.0050 <br />94 <br />70 <br />130 <br />Molybdenum <br />0.111 <br />mg /L <br />0.0010 <br />109 <br />70 <br />130 <br />Silver <br />0.0314 <br />mg /L <br />0.0010 <br />78 <br />70 <br />130 <br />Thallium <br />0.106 <br />mg /L <br />0.00050 <br />106 <br />70 <br />130 <br />Uranium <br />0.494 <br />mg /L <br />0.00030 <br />112 <br />70 <br />130 <br />Sample ID: C14020462 -001 BMSD4 6 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_140221 A <br />02/21/14 20:17 <br />Antimony <br />0.124 <br />mg /L <br />0.0010 <br />124 <br />70 <br />130 0.0 <br />20 <br />Copper <br />0.0953 <br />mg /L <br />0.0050 <br />94 <br />70 <br />130 0.2 <br />20 <br />Molybdenum <br />0.112 <br />mg /L <br />0.0010 <br />111 <br />70 <br />130 1.1 <br />20 <br />Silver <br />0.0322 <br />mg /L <br />0.0010 <br />81 <br />70 <br />130 2.6 <br />20 <br />Thallium <br />0.105 <br />mg /L <br />0.00050 <br />105 <br />70 <br />130 1.0 <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 26 <br />