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9 wwwAneWall Helena, MT 877-472-0711 • Billings, MT 880-735-4489 • Casper, WY 888-235-0515 <br />?xa ars?ace flat '? 0iiotte; r 866-686-7175 • Rapid City, SD 88B-672-1225• College Station, TX 888-680-2218 <br />LABORATORY ANALYTICAL REPORT <br />Client: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program <br />Lab ID: C10080538-003 <br />Client Sample ID: SW-FBRG (S25362) <br />Report Date: 09/14/10 <br />Collection Date: 08/11/10 14:20 <br />DateReceived: 08/13/10 <br />Matrix: Surface Water <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 08/20/10 08:21 / sml <br />Silver ND mg/L 0.001 E200.8 08/20/10 08:21 / sml <br />Thallium ND mg/L 0.001 E200.8 08/20/10 08:21 / sml <br />Uranium 0.322 mg/L 0.0002 E200.8 08/20/10 08:21 / sml <br />Zinc 0.006 mg/L 0.005 E200.8 08/20/10 08:21 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.67 pCi/L E903.0 08/28/10 13:18 / trs <br />Radium 226 precision (±) 0.21 pCi/L E903.0 08/28/10 13:18 / trs <br />Radium 226 MDC 0.19 pCi/L E903.0 08/28/10 13:18 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 271 pCi/L E900.0 08/28/10 20:42 / ep <br />Gross Alpha precision (±) 7.4 pCi/L E900.0 08/28/10 20:42 / ep <br />Gross Alpha MDC 2.0 pCi/L E900.0 08/28/10 20:42 / ep <br />Gross Beta 83.1 pCi/L E900.0 08/28/10 20:42 / ep <br />Gross Beta precision (±) 2.6 pCi/L E900.0 08/28/10 20:42 / ep <br />Gross Beta MDC 2.5 pCi/L E900.0 08/28/10 20:42 / ep <br />Radium 226 0.33 pCi/L E903.0 09/08/10 09:30 / trs <br />Radium 226 precision (±) 0.18 pCi/L E903.0 09/08/10 09:30 / trs <br />Radium 226 MDC 0.22 pCi/L E903.0 09/08/10 09:30 / trs <br />Radium 228 0.26 pCi/L U RA-05 09/01/10 17:38 / plj <br />Radium 228 precision (±) 1.0 pCi/L RA-05 09/01/10 17:38 / plj <br />Radium 228 MDC 1.7 pCi/L RA-05 09/01/10 17:38 / plj <br />DATA QUALITY <br />A/C Balance (± 5) -3.71 % Calculation 08/26/10 08:35 / kbh <br />Anions 4.25 meq/L Calculation 08/26/10 08:35 / kbh <br />Cations 3.95 meq/L Calculation 08/26/10 08:35 / kbh <br />Solids, Total Dissolved Calculated 253 mg/L Calculation 08/26/10 08:35 / kbh <br />TDS Balance (0.80 - 1.20) 1.05 Calculation 08/26/10 08:35 / kbh <br />FIELD PARAMETERS <br />Conductivity 415 umhos/cm FIELD 08/11/10 14:20 / *** <br />pH 8.09 s.u. FIELD 08/11/1014:20/ <br />Temperature 17.1 °C FIELD 08/11/10 14:20 / <br />*** Performed by Sampler <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 concentration U - Not detected at minimum detectable concentration <br />Page 8 of 31