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1464 a • www.ena Baba rn Helena, MT 877472-0711 a Billings, W 800-735-4489 a Casper, WY 880-235-0515 <br />Ae>grcteatt]sahmsk a teat Gillette, WY 666-686-7175 a Rapid City, SD 888-672-1225 a College Station, 7X 888-690-2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Pre pared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/24/11 <br />Project: Schwartz GW 2/24/11 S25619 & S2562 0 Collection Date: 02/23/11 13:10 <br />Lab ID: C11020722-001 DateReceived: 02/25/11 <br />Client Sample ID: MW-3A (S25619) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />MAJOR IONS <br />Alkalinity, Total as CaCC3 106 mg/L 1 A2320 B 02/28/11 18:13 / jba <br />Bicarbonate as HC03 130 mg/L 1 A2320 B 02/28/11 18:13 / jba <br />Calcium 55.1 mg/L D 0.4 E200.7 03/08/11 17:28 / cp <br />Chloride 36 mg/L 3 E300.0 03/03/11 22:10 / Ijl <br />Magnesium 22.4 mg/L 0.1 E200.7 03/08/11 17:28 / cp <br />Nitrogen, Nitrate+Nitrite as N 0.3 mg/L 0.1 E353.2 03/03/11 12:12 / eli-b <br />Phosphorus, Total as P ND mg/L 0.01 E365.1 03/04/11 14:46 / eli-b <br />Potassium 2.6 mg/L 0.1 E200.7 03/08/11 17:28 / cp <br />Sodium 18.6 mg/L D 0.6 E200.7 03/08/11 17:28 / cp <br />Sulfate 117 mg/L 5 E300.0 03/03/11 22:10 / Ijl <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C 340 mg/L 10 A2540 C 02/25/11 16:16 / Imc <br />METALS - DISSOLVED <br />Aluminum ND mg/L 0.2 E200.7 03/08/11 17:28 / cp <br />Antimony ND mg/L 0.001 E200.8 03/01/11 08:30 / smi <br />Copper 0.002 mg/L 0.001 E200.8 03/01/11 08:30 / sml <br />Iron ND mg/L 0.03 E200.7 03/08/11 17:28 / cp <br />Manganese ND mg/L 0.005 E200.7 03/08/11 17:28 / cp <br />Molybdenum 0.021 mg/L 0.005 E200.8 03/01/11 08:30 / sml <br />Thallium ND mg/L 0.0002 E200.8 03/01/11 08:30 / sml <br />Uranium 1.06 mg/L 0.0002 E200.8 03/01/11 08:30 / sml <br />Zinc 0.015 mg/L 0.005 E200.8 03/01/11 08:30 / sml <br />METALS-TOTAL <br />Aluminum ND mg/L 0.2 E200.7 03/10/11 18:21 ! cp <br />Antimony ND mg/L 0.001 E200.8 03/18/11 04:19 / sml <br />Arsenic 0.003 mg/L B 0.001 E200.8 03/19/11 04:43 / sml <br />Copper 0.030 mg/L B 0.001 E200.8 03/19/11 04:43 / sml <br />Iron ND mg/L 0.03 E200.7 03/10/11 18:21 / cp <br />Lead ND mg/L 0.005 E200.8 03/18/11 04:19 / sml <br />Manganese ND mg/L 0.005 E200.7 03/10/11 18:21 / cp <br />Mercury ND mg/L 0.0001 E245.1 03/01/11 11:14 / rdw <br />Silver ND mg/L 0.00005 E200.8 03/18/11 04:19 / sml <br />Thallium 0.0005 mg/L 0.0002 E200.8 03/18/11 04:19 / sml <br />Zinc ND mg/L 0.005 E200.8 03/19/11 04:43 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.13 pCi/L U E903.0 03/08/11 15:36 / trs <br />Radium 226 precision (±) 0.1 pCi/L E903.0 03/08/11 15:36 / trs <br />Radium 226 MDC 0.13 pCi/L E903.0 03/08/11 15:36 / trs <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 sam ple matrix. U - Not detected at minimum detectable concentration <br />Page 3 of 24