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www.etvgylab.om en 4lwi 877.472-0711 - Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />Aa?rflcatEnaVlMra3 c fait A 66=_x175 - Rapid City, SD 816-672-1225 • Collega Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 02/25/11 S25622 <br />Lab ID: C11020751-001 <br />Client Sample ID: Sump 1 (S25622) <br />Report Date: 03/28/11 <br />Collection Date: 02/25/11 09:10 <br />D ate Rece ived : 02/28/11 <br />Matrix: Aqueous <br /> <br />Analyses <br />Result <br />Units <br />Qualifiers RL MCL/ <br />QCL Method <br />Analysis Date / By <br />MAJOR IONS <br />Alkalinity, Total as CaC03 178 mg/L 1 A2320 B 02/28/11 18:45 / jba <br />Bicarbonate as HC03 217 mg/L 1 A2320 B 02/28/11 18:45 /jba <br />Calcium 121 mg/L D 0.4 E200.7 03/08/11 19:59 / cp <br />Chloride 31 mg/L 3 E300.0 03/04/11 09:28 / Ijl <br />Magnesium 52.0 mg/L 0.1 E200.7 03/08/11 19:59 / cp <br />Nitrogen, Nitrate+Nitrite as N 0.2 mg/L 0.1 E353.2 03/07/11 10:35 / eli-b <br />Phosphorus, Total as P ND mg/L 0.01 E365.1 03/07/11 14:19 / eli-b <br />Potassium 5.2 mg/L 0.1 E200.7 03/08/11 19:59 / cp <br />Sodium 42.9 mg/L D 0.6 E200.7 03/08/11 19:59 / cp <br />Sulfate 418 mg/L 5 E300.0 03/04/11 09:28 / Ijl <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C 822 mg/L 10 A2540 C 03/01/11 17:25 / Ir <br />METALS - DISSOLVED <br />Aluminum ND mg/L 0.2 E200.8 03/02/11 13:27 / sml <br />Antimony ND mg/L 0.001 E200.8 03/02/11 13:27 / sml <br />Copper 0.005 mg/L 0.001 E200.8 03/26/11 14:02 / sml <br />Iron 0.03 mg/L 0.03 E200.8 03/02/11 13:27 / sml <br />Manganese ND mg/L 0.005 E200.8 03/02/11 13:27 / sml <br />Molybdenum 0.047 mg/L 0.005 E200.8 03/02/11 13:27 / sml <br />Thallium ND mg/L 0.0002 E200.8 03/02/11 13:27 / sml <br />Uranium 3.38 mg/L 0.0002 E200.8 03/02/11 13:27 / sml <br />Zinc 0.073 mg/L 0.005 E200.8 03/26/11 14:02 / smi <br />METALS - TOTAL <br />Aluminum ND mg/L 0.2 E200.7 03/10/11 18:30 / cp <br />Antimony ND mg/L 0.001 E200.8 03/18/11 04:32 / sml <br />Arsenic 0.005 mg/L B 0.001 E200.8 03/19/11 04:57 / sml <br />Copper 0.023 mg/L D 0.005 E200.8 03/26/11 04:13 / sml <br />Iron 0.04 mg/L 0.03 E200.8 03/19/11 04:57 / sml <br />Lead ND mg/L 0.005 E200.8 03/18/11 04:32 / sml <br />Manganese ND mg/L 0.005 E200.7 03/10/11 18:30 / cp <br />Mercury ND mg/L 0.0001 E245.1 03/02/11 14:37 / rdw <br />Silver ND mg/L 0.00005 E200.8 03/18/11 04:32 / sml <br />Thallium ND mg/L 0.0002 E200.8 03/18/11 04:32 / sml <br />Zinc 0.12 mg/L D 0.01 E200.8 03/26/11 04:13 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 5.1 pCi/L E903.0 03/08/11 15:36 / trs <br />Radium 226 precision (±) 0.43 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 />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 3 of 20 <br />