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vnvw.energylab.tom T Helena, MT 817-472-0711 * Billings, MT 800-735-4489 * gasper, WY 888-235-0515 <br />Au"csl Ercalloac*SJaes 199 Gillette, WY 866-666-7175 * Rapid City, SO 888-672-1225 * College Station, TX 888-690-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 08/16/10 <br />Project: Schwartzwalcier Water Monitorin g Program Collection Date: 07/22/10 12:55 <br />Lab ID: C10070913-003 DateReceived: 07126/10 <br />Client Sample ID: Shaft-50F T Matrix: Aqueous <br /> MCU <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 245 pCi/L E903.0 08104/10 10:07 ! ep <br />Radium 226 precision (±) 3.0 pCi/L E903.0 08/04110 10:07 I ep <br />Radium 226 MDC 015 pCi/L E903.0 08/04/10 10:07 / ep <br />DATA QUALITY <br />A/C Balance (± 5) -2.37 % Calculation 08/09/10 12:281 kbh <br />Anions 49.4 meq/L Calculation 08/09/1012:28/ kbh <br />Cations 47.1 meq/L Calculation 08/09/10 12:28 / kbh <br />Solids, Total Dissolved Calculated 3050 mg/L Calculation 08/09/10 12:28 / kbh <br />TDS Balance (0.80 - 1.20) 1.05 Calculation 08/09/10 12:28 / kbh <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 concentratio n <br /> Page 7 of 45