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wwmenergylab.com Helena, MT 671-472-0711 - Billings, UT 801-735-4469 - Casper, WY 888-235-0515 <br />- <br />p Au&"E 2= IOU Gillette, WY 866-686-7175 - Rapid City, SO 816-672-1225 - College Station, TX 888-680-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 07/02/10 <br />Project: Schwartzwalder Water Monitoring Program Collection Date: 06/08/10 12:08 <br />Lab ID: C10060510-001 DateReceived: 06/11/10 <br />Client Sample ID: Mine Refill Matrix: Aqueous <br /> <br />Analyses <br />Result <br />Units <br />Qualifier <br />RL MCL/ <br />QCL Method <br />Analysis Date / By <br />MAJOR IONS <br />Alkalinity, Total as CaC03 406 mg/L 5 A2320 B 06/17/10 01:21 / Ir <br />Bicarbonate as HC03 495 mg/L 5 A2320 B 06/17/10 01:21 / Ir <br />Calcium 395 mg/L D 1 E200.7 06/15/10 14:04 / cp <br />Chloride 21 mg/L 3 A4500-CI B 06/15/10 12:16 / Ir <br />Magnesium 245 mg/L D 0.3 E200.7 06/15/10 14:04 / cp <br />Potassium 23.8 mg/L 0.1 E200.7 06/15/10 14:04 / cp <br />Sodium 168 mg/L D 1 E200.7 06/15/10 14:04 / cp <br />Sulfate 2010 mg/L D 50 A4500-SO4 E 06/22/10 10:19 / Ir <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C 3260 mg/L 10 A2540 C 06/14/10 09:53 / kre <br />METALS - DISSOLVED <br />Aluminum ND mg/L 0.2 E200.8 06/17/10 21:25 / sml <br />Antimony ND mg/L 0.001 E200.8 06/18/10 18:54 / sml <br />Copper ND mg/L 0.005 E200.8 06/17/10 21:25 / sml <br />Iron ND mg/L 0.03 E200.7 06/15/10 14:04 / cp <br />Manganese 4.86 mg/L 0.01 E200.8 06/17/10 21:25 / sml <br />Molybdenum 1.51 mg/L 0.005 E200.8 06/17/10 21:25 / sml <br />Thallium 0.003 mg/L 0.001 E200.8 06/17/10 21:25 / sml <br />Uranium 33.4 mg/L D 0.9 E200.7 06/15/10 14:04 / cp <br />METALS-TOTAL <br />Aluminum ND mg/L 0.2 E200.7 06/15/10 17:10 / cp <br />Antimony 0.001 mg/L B 0.001 E200.8 06/16/10 17:07 / smi <br />Arsenic ND mg/L 0.1 E200.8 06/16/10 17:07 / smI <br />Copper ND mg/L 0.005 E200.8 06/16/10 17:07 / sml <br />Iron 1.72 mg/L D 0.04 E200.7 06/15/10 17:10 / cp <br />Lead ND mg/L 0.005 E200.8 06/16/10 17:07 / sml <br />Manganese 4.95 mg/L 0.01 E200.7 06/15/10 17:10 / cp <br />Mercury ND mg/L 0.0001 A3112 B 06/15/10 15:50 / jp <br />Silver ND mg/L 0.001 E200.8 06/16/10 17:07 / sml <br />Thallium 0.003 mg/L 0.001 E200.8 06/16/10 17:07 / sml <br />Zinc 0.048 mg/L 0.005 E200.8 06/16/10 17:07 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 245 pCi/L E903.0 06/26/10 11:36 / ep <br />Radium 226 precision (±) 3.0 pCi/L E903.0 06/26/10 11:36 / ep <br />Radium 226 MDC 0.17 pCi/L E903.0 06/26/10 11:36 / ep <br /> <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration B - The analyte was detected in the method blank. <br />D - RL increased due to sample matrix. <br />Page 4 of 58