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www wargylaD.com <br />' <br />m Helena, MT 877-472-0711 • Billings, MT 800-735-4488 • Casper, WY 888-235-0515 <br />Aeab*9FiuLlew#2=1w <br />o Gillette, WY 866-666-7175 • Rapid City, SO 888-672-1225 • College Station, T% 888-690-2218 <br /> LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 07/02/10 <br />Project: Schwartzwalder Water Monitor ing Program Collection Date: 06/09/10 14:10 <br />Lab ID: 010060510-006 DateReceived: 06/11/10 <br />Client Sample ID: ARH Matrix: Aqueous <br /> MCL/ <br />Analyses Resul t Units Qualifier RL QCL Method Analysis Date / By <br />METALS - DISSOLVED <br />Uranium 0.0574 mg/L 0.0002 E200.8 06/14/10 21:06 / sml <br />METALS-SUSPENDED <br />Uranium 0.0009 mg/L 0.0002 E200.8 06/17/10 04:01 / is <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.21 pCi/L E903.0 06/22/10 14:44 / ep <br />Radium 226 precision (±) 0.14 pCi/L E903.0 06/22/10 14:44 / ep <br />Radium 226 MDC 0.18 pCi/L E903.0 06/22/10 14:44 / ep <br />RADIONUCLIDES - SUSPENDED <br />Radium 226 -0.06 pCi/L U E903.0 06/26/10 13:12 / ep <br />Radium 226 precision (±) 0.28 pCi/L E903.0 06/26/10 13:12 / ep <br />Radium 226 MDC 0.52 pCi/L E903.0 06/26/10 13:12 / ep <br />- See Case Narrative regarding Ra226 analysis. <br />FIELD PARAMETERS <br />Conductivity 233 umhos/cm FIELD 06/09/10 14:10 / <br />pH 7.51 s.u. FIELD 06/09/10 14:10 / <br />Temperature 20.8 °C FIELD 06/09/10 14:10 / <br />"' Performed by Sampler <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 />U - Not detected at minimum detectable concentration <br />Page 12 of 58