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www.dweabAm Helens, WT 677472-0711 • Billings, MT 800-735-4488 • Casper, W'Y 888-235-0515 <br />AarytlafFur Bsearsexa fAlt 4y 866-686=7175 • Rapid City, SD,888-072-12250 College Station, TX 888-880-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 09/14/10 <br />Project: Schwartzwalder Water Monitorin g Program Collection Date: 08/11/10 10:30 <br />Lab ID: C10080538-001 DateReceived: 08/13/10 <br />Client Sample ID: SW-LLHG (S25360) Matrix: Surface Water <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />MAJOR IONS <br />Alkalinity, Total as CaC03 91 mg/L 1 A2320 B 08/18/10 17:24 / ja <br />Bicarbonate as HC03 111 mg/L 1 A2320 B 08/18/10 17:24 / ja <br />Calcium 41.1 mg/L D 0.4 E200.7 08/24/10 14:51 / cp <br />Chloride 46 mg/L 3 E300.0 08/24/10 20:51 / Ijl <br />Fluoride 0.3 mg/L 0.1 A4500-F C 08/17/10 10:48 / ja <br />Magnesium 13.3 mg/L 0.1 E200.7 08/24/10 14:51 / cp <br />Nitrogen, Nitrate+Nitrite as N ND mg/L 0.1 E353.2 08/20/10 09:41 / eli-b <br />Phosphate, Total 0.03 mg/L 0.01 Calculation 09/13/10 11:54 / sec <br />Phosphorus, Total as P 0.01 mg/L 0.01 E365.1 08/19/10 13:38 / eli-b <br />Potassium 2.3 mg/L 0.1 E200.7 08/24/10 14:51 / cp <br />Sodium 17.5 mg/L D 0.6 E200.7 08/24/10 14:51 / cp <br />Sulfate 52 mg/L 5 E300.0 08/24/10 20:51 / Ijl <br />NON-METALS <br />Cyanide, Weak Acid Dissociable ND mg/L 0.005 D2036 08/18/10 15:11 / eli-b <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C 249 mg/L 10 A2540 C 08/13/10 16:24 / Ir <br />Solids, Total Suspended TSS @ 105 C 7 mg/L 4 A2540 D 08/16/10 15:46 / Ir <br />METALS - DISSOLVED <br />Aluminum ND mg/L 0.2 E200.7 08/24/10 14:51 / cp <br />Antimony ND mg/L 0.001 E200.8 09/01/10 16:33 / sml <br />Copper ND mg/L 0.005 E200.8 08/20/10 12:02 / sml <br />Iron ND mg/L 0.03 E200.8 08/20/10 12:02 / smi <br />Manganese 0.01 mg/L 0.01 E200.8 08/20/10 12:02 / smi <br />Molybdenum 0.006 mg/L 0.005 E200.8 08/26/10 19:35 / sml <br />Silver ND mg/L 0.001 E200.8 08/20/10 12:02 / sml <br />Thallium ND mg/L 0.001 E200.8 08/20/10 12:02 / sml <br />Uranium 0.262 mg/L 0.0002 E200.8 08/20/10 12:02 / sml <br />Zinc ND mg/L 0.005 E200.8 08/20/10 12:02 / sml <br />METALS-TOTAL <br />Aluminum ND mg/L 0.2 E200.7 08/18/10 17:50 / cp <br />Antimony ND mg/L 0.001 E200.8 09/01/10 18:01 / sml <br />Arsenic ND mg/L 0.1 E200.7 08/18/10 17:50 / cp <br />Boron ND mg/L 0.1 E200.7 08/18/10 17:50 / cp <br />Chromium ND mg/L 0.1 E200.7 08/18/10 17:50 / cp <br />Copper ND mg/L 0.005 E200.7 08/18/10 17:50 / cp <br />Iron 0.29 mg/L 0.03 E200.7 08/18/10 17:50 / cp <br />Lead ND mg/L 0.005 E200.8 08/24/10 10:14 / sml <br />Manganese 0.02 mg/L 0.01 E200.7 08/18/10 17:50 / cp <br />Mercury ND mg/L 0.0001 E245.1 08/16/10 15:11 / rdw <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. ND - Not detected at the reporting limit. <br />D - RL increased due to sample matrix. <br />Page 3 of 31