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14 11,114 www.energylab.com <br />_ . w as gtc,?fxcerraaseslaca 1557 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 - Casper, WY 886-235-0515 <br />_ ?tlGillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 + Coilege Station, TX 888-890-2218 <br /> QA/QC Summary Report <br />Client: Cotter Corporation Report Date: 09/27/10 <br />Project: Schwartzwalder Mine Work Order: C10080962 <br />Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E200.8 Batch: H R65204 <br />Sample ID: LFB 8 Laboratory Forti fied Blank Run: SUB-1-165204 09/10/10 11:45 <br />Aluminum 0.0499 mg/L 0.10 100 85 115 <br />Antimony 0.0487 mg/L 0.050 97 85 115 <br />Copper 0.0482 mg/L 0.010 96 85 115 <br />Manganese 0.0499 mg/L 0.010 100 85 115 <br />Molybdenum 0.0497 mg/L 0.0050 99 85 115 <br />Thallium 0.0493 mg/L 0.10 98 85 115 <br />Uranium 0.0490 mg/L 0.0010 98 85 115 <br />Zinc 0.0497 mg/L 0.010 99 85 115 <br />Sample ID: ICB 8 Method Blank Run: SUB-1-165204 09/10/10 11:55 <br />Aluminum ND mg/L 0.0002 <br />Antimony 2E-05 mg/L 1 E-05 <br />Copper ND mg/L 4E-05 <br />Manganese ND mg/L 2E-05 <br />Molybdenum 8E-05 mg/L 2E-05 <br />Thallium 0.00010 mg/L 2E-05 <br />Uranium ND mg/L 1 E-05 <br />Zinc ND mg/L 0.0004 <br />Sample ID: H10090058-001CMS 8 Sample Matrix Spike Run: SUB-1-165204 09/10/10 21:08 <br />Aluminum 0.052 mg/L 0.010 97 70 130 <br />Antimony 0.051 mg/L 0.0050 102 70 130 <br />Copper 0.050 mg/L 0.010 98 70 130 <br />Manganese 0.34 mg/L 0.010 78 70 130 <br />Molybdenum 0.050 mg/L 0.0050 99 70 130 <br />Thallium 0.051 mg/L 0.0050 102 70 130 <br />Uranium 0.053 mg/L 0.0010 106 70 130 <br />Zinc 0.054 mg/L 0.010 99 70 130 <br />Sample ID: H10090058-001 CMSD 8 Sample Matrix Spike Duplicate Run: SUB-1-165204 09/10/10 21:13 <br />Aluminum 0.051 mg/L 0.010 95 70 130 1.8 20 <br />Antimony 0.050 mg/L 0.0050 101 70 130 1 20 <br />Copper 0.050 mg/L 0.010 98 70 130 0.6 20 <br />Manganese 0.35 mg/L 0.010 87 70 130 1.3 20 <br />Molybdenum 0.049 mg/L 0.0050 99 70 130 0.4 20 <br />Thallium 0.050 mg/L 0.0050 101 70 130 1.1 20 <br />Uranium 0.052 mg/L 0.0010 103 70 130 2 20 <br />Zinc 0.054 mg/L 0.010 98 70 130 0 20 <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />ND - Not detected at the reporting limit. <br />Page 25 of 44