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ENERGY <br />LABORATORIES <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 08/31/12 <br />Project: Schwartz GW 7/26/2012 S26523 Work Order: C12071072 <br />Analyte Count Result Units <br />Method: E200.8 Batch: R163876 <br />Sample ID: C12080079 -002BMS4 10 Sample Matrix Spike Run: ICPMS4- C_120827A 08/27/12 23:18 <br />Uranium 0.0614 mg /L 0.00030 115 70 130 <br />Zinc 0.0582 mg /L 0.010 101 70 130 <br />Sample ID: C12080079 -002BMSD 10 Sample Matrix Spike Duplicate Run: ICPMS4- C_120827A 08/27/12 23:23 <br />Antimony 0.0546 mg /L 0.0010 109 70 130 0.9 20 <br />Arsenic 0.0585 mg /L 0.0010 108 70 130 1.3 20 <br />Chromium 0.0515 mg /L 0.0050 103 70 130 2.0 20 <br />Copper 0.0483 mg /L 0.0050 97 70 130 1.3 20 <br />Lead 0.0536 mg /L 0.0010 107 70 130 0.1 20 <br />Mercury 0.00547 mg /L 0.00010 109 70 130 2.7 20 <br />Silver 0.0173 mg /L 0.0010 86 70 130 21 20 R <br />Thallium 0.0560 mg /L 0.00050 112 70 130 0.0 20 <br />Uranium 0.0622 mg /L 0.00030 117 70 130 1.4 20 <br />Zinc 0.0585 mg /L 0.010 102 70 130 0.5 20 <br />Method: E200.8 Analytical Run: ICPMS4- C_120829A <br />Sample ID: ICV 2 Initial Calibration Verification Standard 08/29/12 11:57 <br />Copper 0.0494 mg /L 0.0010 99 90 110 <br />Silver 0.0212 mg /L 0.0010 106 90 110 <br />Method: E200.8 <br />Sample ID: LRB 2 Method Blank <br />Copper ND mg /L <br />Silver ND mg /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />www.energylab.com Helena, MT 871 472 - 0711 • Billings, MT 800 735 - 4489 • Casper, WY 888 235 - 0515 <br />Analffical Excellence Slam 1852 ; I Gillette, WY 866 686 - 1175 • Rapid City, SD 888 - 672 - 1225 • College Station, TX 888 - 690 - 2218 <br />3E-05 <br />6E -05 <br />RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Run: ICPMS4-C_120829A <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: ICPMS4- C_120829A <br />Copper 0.0503 mg /L 0.0010 101 85 115 <br />Silver 0.0203 mg /L 0.0010 102 85 115 <br />Sample ID: C12071072 -001DMS4 2 Sample Matrix Spike Run. ICPMS4- C_120829A <br />Copper 0.0476 mg /L 0.0050 92 70 130 <br />Silver 0.0192 mg /L 0.0010 96 70 130 <br />Sample ID: C12071072 -001DMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4- C_120829A 08/29/12 12:54 <br />Copper 0.0492 mg /L 0.0050 96 70 130 3.4 20 <br />Silver 0.0204 mg /L 0.0010 102 70 130 6.2 20 <br />ND - Not detected at the reporting limit. <br />R - RPD exceeds advisory limit. <br />Page 11 of 20 <br />Batch: R163981 <br />08/29/12 12:32 <br />08/29/12 12:36 <br />08/29/12 12:50 <br />