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• www.mweab.com Helena, MT 877472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 -235 -0515 <br />Exalt C1 Um Im Gillette, WY 866 -666 -7175 • Rapid City, SO 886- 672 -1225 • College Station, T% 888- 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY <br />Branch <br />Revised Date: <br />06/14/13 <br />Client: <br />Cotter Corporation <br />Report Date: <br />05/20/13 <br />Project: <br />Schwartz SW 05/08/13 (S26871 <br />& S26873) <br />Work Order: <br />C13050368 <br />Analyte <br />Count Result Units RL <br />° /6REC Low Limit High Limit RPD <br />RPDLimit Qual <br />Method: <br />E200.8 <br />Analytical Run: ICPMS2- C_130513A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />05/13/13 12:03 <br />Uranium <br />0.0507 mg /L 0.00030 <br />101 90 110 <br />Method: <br />E200.8 <br />Batch: R173524 <br />Sample ID: <br />LRB <br />Method Blank <br />Run: ICPMS2 -C 130513A <br />05/13/13 12:29 <br />Uranium <br />ND mg /L 1 E -05 <br />Sample ID: <br />LFB <br />Laboratory Fortified Blank <br />Run: ICPMS2- C_130513A <br />05/13/13 12:32 <br />Uranium <br />0.0518 mg /L 0.00030 <br />104 85 115 <br />Sample ID: <br />C13050365- 003BMS4 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130513A <br />05/13/13 18:51 <br />Uranium <br />0.720 mg /L 0.00030 <br />70 130 <br />A <br />Sample ID: <br />C13050365- 003BMSD4 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130513A <br />05/13/13 18:54 <br />Uranium <br />0.718 mg /L 0.00030 <br />70 130 0.3 <br />20 A <br />Method: <br />E200.8 <br />Analytical Run: ICPMS2- C_130515A <br />Sample ID: <br />ICV <br />Initial Calibration Verification Standard <br />05/15/13 13:21 <br />Uranium <br />0.0507 mg /L 0.00030 <br />101 90 110 <br />Method: <br />E200.8 <br />Batch: 37487 <br />Sample ID: <br />MB -37487 <br />Method Blank <br />Run: ICPMS2 -C 130515A <br />05/16/13 03:23 <br />Uranium <br />ND mg /L 1 E -05 <br />Sample ID: <br />LCS3 -37487 <br />Laboratory Control Sample <br />Run: ICPMS2- C_130515A <br />05/16/13 03:26 <br />Uranium <br />0.544 mg /L 0.0010 <br />109 85 115 <br />Sample ID: <br />C13050351- 002AMS3 <br />Sample Matrix Spike <br />Run: ICPMS2- C_130515A <br />05/16/13 06:54 <br />Uranium <br />0.55 mg /L 0.00030 <br />110 70 130 <br />Sample ID: <br />C13050351- 002AMSD3 <br />Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130515A <br />05/16/13 06:57 <br />Uranium <br />0.56 mg /L 0.00030 <br />112 70 130 1.2 <br />20 <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 5 of 10 <br />