2011-01-12_HYDROLOGY - M1977300 (2)

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wKw.energytab.com . _ .? AmtytiralErceuvuoeSncr 7951 Helena, MT 677-472-0711 1 Billings, MT 800-735-4489 o Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SD 888-572-1225 a College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Cotter Corporation Report Da te: 01/05/11 Project: Schwartzwalder Mine Monitori ng Progra m-Surface Wat Collection Date: 11/17;10 10:20 Lab ID: C10110690-007 DateReceived: 11118/10 Client Sample ID: SW GS (S25432) Matr ix: Aqueous MCL/ Analyses Result Units Qualifiers AL QCL Method Analysis Date / By MAJORIONS Alkalinity, Total as CaC03 102 mg/L 1 A2320 B 11119/10 00:27 / jba Bicarbonate as HC03 125 mg/L 1 A2320 B 11/19/10 00:27 / jba Calcium 56.3 mg/L D 0.4 E200.7 12/09/10 12:38 / cp Chloride 46 mg/L 3 E300.0 11/22/10 22:40 / Ijl Fluoride 0.3 mg/L 0.1 A4500-FC 11122il011:05/jba Magnesium 20.1 mg/L 0.1 E200.7 12/09/10 12;38 / cp Nitrogen, Nilrale+Nitrite as N ND mg/L 0.1 E353.2 11/30/10 10:04 / eli-b Phosphate, Total 0.02 mg/L 0.01 Calculation 12,'03/10 08:03 / bal Phosphorus, Total as P NO mg1L 0.01 E365.1 11/23/10 15:16 / eli-b Potassium 2.6 mg/L 01 E200.7 12/09/10 12:381 cp Sodium 20.9 mg/L D 0.6 E200.7 12/09/10 12:38 / cp Sulfate 102 mg/L 5 E300.0 11122110 22:40 / Ijl NON-METALS Cyanide, Weak Acid Dissociable NO mg/L 0.002 D2036 11/22/10 13:26 / eli-b PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C 356 mg/L 10 A2540 C 11/19/10 09:28 / Ijl Solids, Total Suspended TSS @ 105 C NO mg/L 4 A2540 D 11/22/10 11:47 / Ir METALS - DISSOLVED Aluminum NO mg/L 0.2 E200.8 11/30/10 04:26 / smi Antimony NO mg/L 0.001 E200.8 11/30/10 04:26 / sml Copper NO mg/L 0.001 E200.8 11/30/10 04:26 / smi Iron NO mg/L 0.03 E200.8 11 /30/10 04:261 sml Manganese 0.006 mg/L 0.005 E200.8 11/30/10 04;26 / sml Molybdenum 0.010 mg/L 0.005 E200.8 11 /30/10 04:26 / sml Silver NO mg/L L 0.00008 E200,8 12/16110 22:41 / sml Thallium NO mg/L 0.0002 E200.8 11/30/10 04:26 / sml Uranium 0.919 mg/L 0.0002 E200.8 11/30/10 04:26 / smi Zinc ND mg/L 0.005 E200.8 11/30110 04:261 sml METALS-TOTAL Aluminum NO mg/L 0.2 E200.7 12/09/10 16:13 / cp Antimony NO mg/L 0.001 E200.8 12/16/10 22:47 / sml Arsenic NO mg/L 0.0005 E200.8 12/16110 22:47 / smi Boron NO mg/L 0.1 E200.7 12109/10 16:13 / op Chromium NO mg/L 0.001 E200.8 12/22110 11:23 / sml Copper NO mg/L 0.001 E200.8 12/22/10 11:23 / smi Iron ND mg/L 0.03 E200.7 12,x09/10 16:13 / cp Lead NO mg/L 0.005 E200.8 12122/10 11:23 / sml Manganese 0.006 mg/L 0.005 E200.7 12/09/10 16:13 / cp Report RL - Analyze reporting limit. MCL - Maximum contaminant level. Definitions: QCL - Quality control limit. NO - Not detected at the reporting limit . D - RL increased due to sampl e matrix. L - Lowest available reporting limit for t he analytical methoc used. Page 9 of 39 1