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wiaw.enaadal eom Helam tQW7 472-0711 - BHling& Ur NIP-1354482 - Caspar, Wy 888-236-8510 <br />Am*ftarahaa 2w 1Jff sHlft WY 88"88-7175 - Rapid Ch so 88"12-1225 - Couga SttUo% U 8111111-11111111-221 8 <br />QA/QC Summary Report <br />Client: Cotter Corporation <br />Project: Schwartzwalder Mine <br />Report Date: 10/12/10 <br />Work Order: C10090382 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit t]ual <br />Method: E200.7 Batch: R137567 <br />Sample ID: MB400922A 9 Method Blank Run: ICP2-C 100922A 09/22/1011:14 <br />Aluminum ND mg/L 0.01 <br />Arsenic ND mg/L 0.02 <br />Boron ND mg/L 0.009 <br />Calcium ND mg/L 0.2 <br />Chromium ND mg/L 0.002 <br />Iron ND mg/L 0.002 <br />Magnesium ND mg/L 0.05 <br />Potassium ND mg/L 0.02 <br />Sodium ND mg/L 0.3 <br />Sample ID: LFS-100922A 9 Laboratory Fortified Blank Run: ICP2-C_100922A 09/22/10 11:18 <br />Aluminum 1.01 mg/L 0.10 101 85 115 <br />Arsenic 0.977 mg/L 0.10 98 85 115 <br />Boron 0.994 mg/L 0.10 99 85 115 <br />Calcium 51.2 mg/L 0.50 102 85 115 <br />Chromium 0.994 mg/L 0.050 99 85 115 <br />Iron 1.01 mg/L 0.030 101 85 115 <br />Magnesium 51.7 mg/L 0.50 103 85 115 <br />Potassium 45.6 mg/L 0.50 91 85 115 <br />Sodium 49.2 mg/L 0.50 98 85 115 <br />Sample ID: C10090382.0010MS2 9 Sample Matrix Spike Run: ICP2-C 1 00922A 09/22110 16:30 <br />Aluminum 1.92 mg/L 0.10 94 70 130 <br />Arsenic 1.86 mg/L 0.068 91 70 130 <br />Boron 1.92 mg/L 0.10 94 70 130 <br />Calcium 135 mg/L 1.0 96 70 130 <br />Chromium 1.90 mg/L 0.050 93 70 130 <br />Iron 2.22 mg/L 0.030 94 70 130 <br />Magnesium 104 mg/L 1.0 93 70 130 <br />Potassium 95.7 mg/L 1.0 92 70 130 <br />Sodium 114 mg/L 1.0 98 70 130 <br />Sample ID: C10090382-001 DMSD 9 Sample Matrix Spike Duplicate Run: ICP2-C 1 00922A 09122110 16:34 <br />Aluminum 2.03 mg/L 0.10 100 70 130 5.6 20 <br />Arsenic 1.97 mg/L 0.068 97 70 130 5.6 20 <br />Boron 2.01 mg/L 0.10 98 70 130 4.7 20 <br />Calcium 138 mg/L 1.0 100 70 130 2.7 20 <br />Chromium 1.98 mg/L 0.050 97 70 130 3.9 20 <br />Iron 2.31 mg/L 0.030 98 70 130 4.1 20 <br />Magnesium 109 mg/L 1.0 97 70 130 3.8 20 <br />Potassium 95.0 mg/L 1.0 91 70 130 0.8 20 <br />Sodium 114 mg/L 1.0 98 70 130 0.2 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 16 of 36