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• wwwenergylab.com _ ~Helena, MT B77.472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />1052 Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 09/09/10 <br />Project: Schwartzwalder Water Monitoring Program Collection Date: 08/17/10 <br />Lab ID: C10080639-001 DateReceived: 08/18/10 <br />Client Sample ID: DIS-001A (S25451) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />MAJOR IONS <br />Chloride 26 mg/L 3 E300.0 08/27/10 11:38 / Ijl <br />Fluoride 0.3 mg/L 0.1 A4500-F C 08/30/10 07:31 / ja <br />Sulfate 376 mg/L 5 E300.0 08/27/10 11:38 / Ijl <br />NON-METALS <br />Cyanide, Weak Acid Dissociable ND mg/L 0.005 D2036 08/20/10 09:46 / eli-b <br />PHYSICAL PROPERTIES <br />Oxygen Demand, Chemical (COD) 18 mg/L 5 HACH 8000 08/20/10 11:02 / ja <br />Solids, Total Dissolved TDS @ 180 C 761 mg/L 10 A2540 C 08/19/10 11:19 / Ir <br />Solids, Total Suspended TSS @ 105 C ND mg/L 4 A2540 D 08/19/10 11:40 / Ir <br />METALS - DISSOLVED <br />Chromium ND mg/L 0.01 E200.7 08/24/10 15:52 / cp <br />Chromium, Hexavalenl ND mg/L 0.01 A3500 Cr-B 08/18/10 13:27 / ja <br />Chromium, Trivalent ND mg/L 0.01 Calculation 08/27/10 10:02 / sec <br />Iron ND mg/L 0.03 E200.7 08/24/10 15:52 / cp <br />Manganese ND mg/L 0.01 E200.7 08/24/10 15:52 / cp <br />METALS-TOTAL <br />Antimony ND mg/L 0.001 E200.8 08/23/10 16:27 / sml <br />Arsenic ND mg/L 0.1 E200.8 08/20/10 00:41 / sml <br />Boron ND mg/L 0.1 E200.8 08/20/10 00:41 / sml <br />Chromium ND mg/L 0.05, E200.8 08/20/10 00:41 / sml <br />Iron ND mg/L 0.03 E200.8 08/20/10 00:41 / sml <br />Mercury ND mg/L 0.0001 E245.1 08/24/10 16:32 / rdw <br />Thallium ND mg/L 0.001 E200.8 08/20/10 00:41 / sml <br />Uranium ND mg/L 0.002 E200.8 08/20/10 00:41 / sml <br />METALS - POTENTIALLY DISSOLVED <br />Arsenic ND mg/L 0.1 E200.8 08/27/10 10:45 / sml <br />Cadmium ND mg/L 0.01 E200.8 08/27/10 10:45 / sml <br />Copper 0.006 mg/L 0.005 E200.8 08/27/10 10:45 / sml <br />Nickel ND mg/L 0.05 E200.8 08/27/10 10:45 / sml <br />Selenium ND mg/L 0.001 E200.8 08/27/10 10:45 / sml <br />Silver ND mg/L 0.001 E200.8 08/27/10 10:45 / sml <br />Uranium ND mg/L 0.0002 E200.8 08/27/10 10:45 / sml <br />Zinc 0.087 mg/L 0.005 E200.8 08/27/10 10:45 / sml <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />Q Page 3 of 21