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wwwerwdalwom ' ;#k1Fna MT, S77-472'-0711 * Billings, MY 800-735-4489 • Casper,. WY ON-235-0515 <br />A e?fEuw a3Cga t8S1 !66 66'; 7175 • Rapid City, Sq 888-672-1225 • College station, U 888-6l0-2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 04/25/11 <br />Project: Schwartz-GW 03/30/11 S25671 & S25672 Collection Date: 03/30/11 11:05 <br />Lab ID: C11030940-002 DateReceived: 03/31/11 <br />Client Sample ID: MW-7 (S25672) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifier RL QCL Method Analysis Date / By <br /> <br />MAJOR IONS <br />Alkalinity, Total as CaC03 164 mg/L 1 A2320 B 04/05/11 14:08 / jba <br />Bicarbonate as HC03 201 mg/L 1 A2320 B 04/05/11 14:08 / jba <br />Calcium 108 mg/L D 0.4 E200.7 04/07/11 21:54 / cp <br />Chloride 33 mg/L 3 E300.0 04/05/11 06:25 / Ijl <br />Magnesium 45.3 mg/L 0.1 E200.7 04/07/11 21:54 / cp <br />Nitrogen, Nitrate+Nitrite as N 0.2 mg/L 0.1 E353.2 04/06/11 06:23 / eli-b <br />Phosphorus, Total as P ND mg/L 0.01 E365.1 04/06/11 11:07 / eli-b <br />Potassium 5.1 mg/L 0.1 E200.7 04/07/11 21:54 / cp <br />Sodium 45.9 mg/L D 0.6 E200.7 04/07/11 21:54 / cp <br />Sulfate 351 mg/L 5 E300.0 04/05/11 06:25 / Ijl <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C 747 mg/L 10 A2540 C 04/01/11 13:55 / Ir <br />METALS - DISSOLVED <br />Aluminum ND mg/L 0.2 E200.8 04/02/11 14:59 / sml <br />Antimony ND mg/L 0.001 E200.8 04/04/11 19:37 / sml <br />Copper ND mg/L 0.001 E200.8 04/04/11 19:37 / sml <br />Iron ND mg/L 0.03 E200.8 04/04/11 19:37 / sml <br />Manganese ND mg/L 0.005 E200.8 04/02/11 14:59 / sml <br />Molybdenum 0.037 mg/L 0.005 E200.8 04/04/11 19:37 / sml <br />Thallium ND mg/L 0.0002 E200.8 04/04/11 19:37 / sml <br />Uranium 2.97 mg/L 0.0002 E200.8 04/04/11 19:37 / sml <br />Zinc 0.015 mg/L 0.005 E200.8 04/04/11 19:37 / sml <br />METALS - TOTAL <br />Aluminum ND mg/L 0.2 E200.8 04/05/11 22:28 / sml <br />Antimony ND mg/L 0.001 E200.8 04/05/11 22:28 / sml <br />Arsenic 0.002 mg/L 0.001 E200.8 04/05/11 22:28 / sml <br />Copper ND mg/L 0.001 E200.8 04/05/11 22:28 / smI <br />Iron ND mg/L 0.03 E200.8 04/05/11 22:28 / sml <br />Lead ND mg/L 0.005 E200.8 04/05/11 22:28 / sml <br />Manganese ND mg/L 0.005 E200.8 04/05/11 22:28 / sml <br />Mercury ND mg/L 0.0001 E245.1 04/05/11 11:07 / rdw <br />Silver ND mg/L 0.00005 E200.8 04/06/11 15:22 / sml <br />Thallium ND mg/L 0.0002 E200.8 04/05/11 22:28 / sml <br />Zinc 0.009 mg/L 0.005 E200.8 04/06/11 15:22 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.93 pCi/L E903.0 04/11/11 17:51 / dmf <br />Radium 226 precision (±) 0.21 pCi/L E903.0 04/11/11 17:51 / dmf <br />Radium 226 MDC 0.15 pCi/L E903.0 04/11/11 17:51 / dmf <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 c oncentrati on D - RL increased due to sample matrix. <br />Page 5 of 24 <br />