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www.energylab.com <br />An:lrtksl Fxcageuce %C61952 <br />Helena, fAT 877-472-0711 *Billings, MT 800-735-4489 *Casper, WY 888-235-0515 <br />WY 866-686-7175 * Raoid City. SO 888-672-1125 • Coileee Station, TX 888-698-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 08/16/10 <br />Project: Schwartzwalder Water Monitoring Program Collection Date: 07/22/10 14:50 <br />Lab ID: C10070913-006 DateReceived: 07/26/10 <br />Client Sample ID: Shaft-300FT Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 253 pCi/L E903.0 08/04/10 12:12 / ep <br />Radium 226 precision (±) 3.1 pCi/L E903.0 08/04110 12:121 ep <br />Radium 226 MDC 0.15 pC1/L E903.0 08/04/10 12:121 ep <br />DATA QUALITY <br />A/C Balance (± 5) -1.72 % Calculation 08/09110 12:311 kbh <br />Anions 49.6 meq/L Calculation 08/09110 12:31 / kbh <br />Cations 47.9 meq/L Calculation 08/09/10 12:31 / kbh <br />Solids, Total Dissolved Calculated 3080 mg/L Calculation 08/09/10 12:31 / kbh <br />TDS Balance (0.80 -1.20) 1.05 Calculation 08109/10 12:31 / kbh <br />Report RL - Analyte reporting limit. <br />Definitions: QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />Page 13 of 45