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www.energylab.com Helena, Mf 877-471-0711 • Billings, MT 806-735-4489 • Casper, WY 888-235-0515 <br />AaaWW Eralk=since IM Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-698-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation Report Date: 12/10/10 <br />Project: Schwartzwalder Wate r Monitoring Program - SW Collection Date: 11/02/10 11:25 <br />Lab ID: 010110203-001 DateReceived: 11/04/10 <br />Client Sample ID: SW AWD (S25278) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS-TOTAL <br />Molybdenum ND mg/L 0.005 E200.8 12103/10 03:22 / smi <br />Silver ND mg/L 0.00005 E200.8 12/03/10 03:22 / smI <br />Thallium 0.0003 mg/L 0.0002 E200.8 12/03/10 03:221 sml <br />Uranium 0.0021 mg/L 0.0002 E200.8 12103/10 03:22 / sml <br />Zinc ND mg/L 0.005 E200.8 12103/10 03:22 / smi <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 -0.1 pCi/L U E903.0 11/17/10 15:08 / jb <br />Radium 226 precision (±) 0.11 pCi/L E903.0 11/17/10 15:08 / jb <br />Radium 226 MDC 0.25 pCi/L E903.0 11/17110 15:08 / jb <br />RADIONUCLIDES - TOTAL <br />Gross Alpha -0.8 pCi/L U E900.0 11/25/10 10:27 / ep <br />Gross Alpha precision (±) 1.2 pCi/L E900.0 11/25/10 10:271 ep <br />Gross Alpha MDC 2.1 pCi/L E900.0 11/25/10 10:27 / ep <br />Gross Beta 2.1 pCi/L U E900.0 11/25/10 10:27 / ep <br />Gross Beta precision {±) 1.5 pCi/L E900.0 11/25/10 10:27 / ep <br />Gross Bela MDC 2.5 pCi/L E900.0 11/25/10 10:27 / ep <br />Radium 226 -0.08 pCi/L U E903.0 11129/10 21:121 trs <br />Radium 226 precision (±) 0.08 pCi/L E903.0 11/29/10 21:12 / trs <br />Radium 226 MDC 0.18 pCi/L E903.0 11/29/10 21:12 / Ins <br />Radium 228 0.79 pCi/L U RA-05 11/23/10 10:35 / plj <br />Radium 228 precision (±) 0.70 pCi/L RA-05 11/23/10 10:35 / plj <br />Radium 228 MDC 1.1 pCi/L RA-05 11/23/10 10:35 / plj <br />DATA QUALITY <br />A/C Balance (± 5) -2.52 % Calculation 12/05/10 10:19 / kbh <br />Anions 3.34 meq/L Calculation 12/05/10 10:19 / kbh <br />Cations 3.17 meq/L Calculation 12/05/10 10:19 / kbh <br />Solids, Total Dissolved Calculated 193 mg/L Calculation 1 2105/1 0 10:19 / kbh <br />TDS Balance (0.80 - 1.20) 1.25 Calculation 12/05/10 10:19 / kbh <br />FIELD PARAMETERS <br />Conductivity 0.35 umhos/cm FIELD 11/02/10 11:251 <br />pH 7.26 s.u. FIELD 11/02110 11:25 / <br />Temperature 4.9 °C FIELD 11/02/10 11:251 <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 delectable concentration <br />Page 5 of 43