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www.pre oab.com � Helena, MT 877- 472 -0711 - Billings, MT 801- 735 -4489 - Casper, WY 888 -235 -0515 <br />'r Gillette, WY 066 - 686 -7175 - Rapid City, SD 886- 672 -1225 - College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 08/30/13 <br />Project: Schwartz -SW 8/7/13 S27021,S27023 Work Order: 013080332 <br />FAnalyte Count Result Units RL ° /6REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Analytical Run: ICPMS2- C_130827A <br />Sample ID: ICV Initial Calibration Verification Standard 08/27/13 13:27 <br />Uranium 0.0504 mg /L 0.00030 101 90 110 <br />Method: <br />E200.8 <br />Batch: 38662 <br />Sample ID: <br />MB -38662 <br />Method Blank <br />Run: ICPMS2- C_130827A <br />08/27/13 21:49 <br />Uranium <br />6E -05 mg /L <br />9E -06 <br />Sample ID: <br />LCS3 -38662 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130827A <br />08/27/13 21:52 <br />Uranium <br />0.484 mg /L <br />0.00030 <br />97 <br />85 115 <br />Sample ID: <br />C13080342- 012CMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130827A <br />08/27/13 22:04 <br />Uranium <br />2.66 mg /L <br />0.00030 <br />106 <br />70 130 <br />Sample ID: <br />C13080342- 012CMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130827A <br />08/27/13 22:07 <br />Uranium <br />2.70 mg /L <br />0.00030 <br />108 <br />70 130 1.6 <br />20 <br />Method: <br />E200.8 <br />Analytical Run: ICPMS4- C_130814A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />08/14/13 16:06 <br />Uranium <br />0.0509 mg /L <br />0.00030 <br />102 <br />90 110 <br />Method: <br />E200.8 <br />Batch: 38662 <br />Sample ID: <br />MB -38662 <br />Method Blank <br />Run: ICPMS4- C_130814A <br />08/14/13 23:32 <br />Uranium <br />ND mg /L <br />4E -05 <br />Sample ID: <br />LCS3 -38662 <br />Laboratory Control Sample <br />Run: ICPMS4- C_130814A <br />08/14/13 23:37 <br />Uranium <br />0.509 mg /L <br />0.00030 <br />102 <br />85 115 <br />Sample ID: <br />C13080324- 001BMS3 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130814A <br />08/14/13 23:49 <br />Uranium <br />0.612 mg /L <br />0.00030 <br />122 <br />70 130 <br />Sample lD: <br />C13080324- 001BMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130814A <br />08/14/13 2353 <br />Uranium <br />0.611 mg /L <br />0.00030 <br />122 <br />70 130 0.2 <br />20 <br />Method: <br />E200.8 <br />Analytical Run: ICPMS4- C_130823A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />08/23/13 11:06 <br />Uranium <br />0.0499 mg /L <br />0.00030 <br />100 <br />90 110 <br />Method: <br />E200.8 <br />Batch: R177526 <br />Sample ID: <br />LRB <br />Method Blank <br />Run: ICPMS4- C_130823A <br />08/23/13 12:07 <br />Uranium <br />ND mg /L <br />9E -06 <br />Sample ID: <br />LFB <br />Laboratory Fortified Blank <br />Run: ICPMS4- C_130823A <br />08/23/13 12:11 <br />Uranium <br />0.0533 mg /L <br />0.00030 <br />107 <br />85 115 <br />Sample ID: <br />C13080331- 001CMS4 <br />Sample Matrix Spike <br />Run: ICPMS4- C_130823A <br />08/23/13 20:24 <br />Uranium <br />0.0883 mg /L <br />0.00030 <br />109 <br />70 130 <br />Sample ID: <br />C13080331- 001CMSD4 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS4- C_130823A <br />08/23/13 20:28 <br />Uranium <br />0.0879 mg /L <br />0.00030 <br />108 <br />70 130 0.5 <br />20 <br />Qualifiers: <br />RL - Analyte <br />reporting limit. <br />ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration <br />Page 4 of 9 <br />