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www.dieWab=n <br />A?rbcif Eeca9YNa fAtct t83? <br />72-0111 - Billings, MT 600-1354189 --Gasper, WW I88-285-Od15 <br />1Rap d City, SD 818412-1225 - college Station, TX 688-690-2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/01/11 <br />Project: Schwartz SW 03/01/11 S25651-S25658 Work Order: C11030134 <br />Analyte C ount Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: R144243 <br />Sample ID: 011030585-006DMS4 3 Sample Matrix Spike Run: ICPMS4-C_110330A 03/30/11 19:09 <br />Molybdenum 0.0547 mg/L 0,0010 104 70 130 <br />Silver 0.0150 mg/L 0.010 75 70 130 <br />Uranium 0.213 mg/L 0.00030 111 70 130 <br />Sample ID: C11030585-006DMSD 3 Sample Matrix Spike Duplicate Run: ICPMS4-C_110330A 03/30/11 19:16 <br />Molybdenum 0.0560 mg/L 0.0010 107 70 130 2.4 20 <br />Silver 0.0161 mg/L 0.010 81 70 130 7.5 20 <br />Uranium 0.210 mg/L 0.00030 106 70 130 1.2 20 <br />Sample ID: LRB 3 Method Blank Run: ICPMS4-C_110330A 03/30/11 21:28 <br />Molybdenum 0.0001 mg/L 8E-05 <br />Silver ND mg/L 8E-05 <br />Uranium ND mg/L 8E-06 <br />Sample ID: LFB 3 Laboratory Fortified Blank Run: ICPMS4-C_110330A 03/30/11 21:35 <br />Molybdenum 0.0523 mg/L 0.0010 104 85 115 <br />Silver 0.0203 mg/L 0.0010 102 85 115 <br />Uranium 0.0524 mg/L 0.00030 105 85 115 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 26 of 43 <br />