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ENERGY <br />'- A`- 1CTRATORIF5 <br />Method: E200.8 <br />Sample ID: LRB <br />Copper <br />Uranium <br />Qualifiers: <br />www.enerjYlab.com <br />A 5290enc ase 1952 <br />Client: Cotter Corporation <br />Project: Schwartz GW 6/29/11 S25824 <br />2 Method Blank <br />ND mg /L <br />ND mg /L <br />Helene, MT 877 - 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888-235-0515 <br />Gillette, WY 886 -886 -7175 • Rapid City, SD 888 - 672 -1225 • Couege Station, Tx 888 -660 -2218 <br />QA/QC Summary Report <br />' Prepared by Casper, WY Branch <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />0.0010 <br />0.00020 <br />Run: ICPMS4 -C 110726A <br />Report Date: 08/01/11 <br />Work Order: C11070057 <br />Batch: R148538A <br />07/26/11 11:48 <br />Sample ID: LFB 2 Laboratory Fortified Blank Run: ICPMS4- C_110726A 07/26/11 11:53 <br />Copper 0.0539 mg /L 0.0010 107 85 115 <br />Uranium 0.0498 mg /L 0.00030 100 85 115 <br />Sample ID: C11070325- 004BMS4 2 Sample Matrix Spike Run: ICPMS4- C_110726A 07/27/11 09:16 <br />Copper 0.628 mg /L 0.010 101 70 130 <br />Uranium 11.4 mg /L 0.00030 70 130 A <br />Sample ID: C11070325- 004BMSD 2 Sample Matrix Spike Duplicate Run: ICPMS4- C_110726A 07/27/11 09:43 <br />Copper 0.631 mg /L 0.010 101 70 130 0.5 20 <br />Uranium 11.1 mg /L 0.00030 70 130 2.3 20 A <br />RL - Analyte reporting limit. A - The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />ND - Not detected at the reporting limit. MDC - Minimum detectable concentration <br />Page 11 of 21 <br />