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ENERGY <br />n�- . OI�nl oilit. <br />www.energylab.cam <br />Aeaaydr+ l&c�Aoran act 1152 <br />Client: Cotter Corporation <br />Project: Schwartz SW 5/16/11 S25329- S25336 <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 />Method: E200.8 <br />Sample ID: MB -29904 <br />Arsenic <br />Copper <br />Uranium <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />3 Method Blank <br />ND mg /L 0.0010 <br />ND mg /L 0.0010 <br />ND mg /L 0.00020 <br />Helena, Mt 677 -472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866- 686 -7175 • Rapid City, SO 888 -672 -1225 • College Station, TX 888- 690 -2218 <br />Run: ICPMS2 -C 110609A <br />ND - Not detected at the reporting limit. <br />Report Date: 06/20/11 <br />Work Order: C11050640 <br />Batch: 29904 <br />06/09/11 15:37 <br />Sample ID: LCS3 - 29904 3 Laboratory Control Sample Run: ICPMS2- C_110609A 06/09/11 15:40 <br />Arsenic 0.552 mg /L 0.0010 110 85 115 <br />Copper 0.533 mg /L 0.010 107 85 115 <br />Uranium 0.545 mg /L 0.00030 109 85 115 <br />Sample ID: C11050640 003DMS3 3 Sample Matrix Spike Run: ICPMS2- C_110609A 06/09/11 16:23 <br />Arsenic 0.491 mg /L 0.0010 98 70 130 <br />Copper 0.512 mg /L 0.010 102 70 130 <br />Uranium 0.539 mg /L 0.00030 107 70 130 <br />Sample ID: C11050640 003DMSD 3 Sample Matrix Spike Duplicate Run: ICPMS2- C_110609A 06/09/11 16:25 <br />Arsenic 0.525 mg /L 0.0010 105 70 130 6.8 20 <br />Copper 0.526 mg /L 0.010 105 70 130 2.7 20 <br />Uranium 0.558 mg /L 0.00030 111 70 130 3.4 20 <br />Batch: R146069 <br />05/19/11 14:58 <br />Method: E200.8 <br />Sample ID: LRB Method Blank Run: ICPMS4- C_110519A <br />Uranium ND mg /L 0.00020 <br />Sample ID: LFB Laboratory Fortified Blank Run: ICPMS4- C_110519A 05/19/11 15:02 <br />Uranium 0.0505 mg /L 0.00030 101 85 115 <br />Sample ID: C11050507 003BMS Sample Matrix Spike Run: ICPMS4- C_110519A 05/19/11 22:56 <br />Uranium 0.0481 mg /L 0.0010 82 70 130 <br />Sample ID: 011050507 003BMSD Sample Matrix Spike Duplicate Run: ICPMS4- C_110519A 05/19/11 23:00 <br />Uranium 0.0498 mg /L 0.0010 85 70 130 3.5 20 <br />Page 19 of 38 <br />