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??..?` Kww.energylat.wro <br />5 <br />- <br />' <br />Doi j Helena, MT 811-472-0711 - Billings, MT 800-735-4489 • Casper, WY 888-235-0515 <br />•?_.-' _ <br />" ,- <br />- <br />Aino1nlEtcalleacaVace 1432 <br />• <br />Gillette, WY 866.686.7175 n Rapid City, SO 888-672-1225 • College Station, TX 888-590-2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Dat e: 01/05/11 <br />Project: Schwartzwalder Mine Monitorin g Program-Surface Wat Collection Dat e: 11/17/10 10:20 <br />Lab ID: C101 10690-007 DateReceived: 11/18/10 <br />Client Sample ID: SW GS (S25432) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS-TOTAL <br />Mercury ND mg/L 0.0001 E2451 11/23/10 12:21 i rdw <br />Molybdenum 0.009 mg/L 0.005 E200.8 12/22/10 11:231 sml <br />Silver NO mg/L 0.00005 E200.8 12/16/10 22:47 / sml <br />Thallium NO mg/L 0.0002 E200.8 12/22/10 11:231 sml <br />Uranium 0.939 mg/L 0.0002 E200.8 12/22110 11:23 / sml <br />Zinc NO mg/L 0.005 E200.8 12122/10 11:23 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.64 pCi/L E903.0 12/16/10 15:341 Irs <br />Radium 226 precision (±) 0.17 pC& E903.0 12/16110 15:34 / Irs <br />Radium 226 MDC 0.13 pCi/L E903.0 12116/10 15:34 / Irs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 743 pCi/L E900.0 11/30/10 11:26 / ep <br />Gross Alpha precision (±) 12.6 pCi/L E900.0 11/30/10 11:26 / ep <br />Gross Alpha MDC 2.8 pCi/L E900.0 11/30/10 11:26 / ep <br />Gross Beta 199 pCi/L E900.0 11/30/10 11:26 / ep <br />Gross Beta precision {t) 3.7 pCi/L E900.0 11/30/10 11:26 / ep <br />Gross Beta MDC 2.5 pCi/L E900.0 11130/10 11:26 / ep <br />Radium 226 0.87 pCi/L E9010 12/16110 15:34/ Irs <br />Radium 226 precision (±) 0.21 pCVL E9010 12116!10 15:34 / Irs <br />Radium 226 MDC 0.14 pCi/L E903.0 12/16/10 15:34 / Irs <br />Radium 228 0.94 pCi/L U RA-05 12/01/10 16:13 / plj <br />Radium 228 precision (±) 0.63 pCi/L RA-05 12/01/10 16:13 / pf <br />Radium 228 MDC 0.98 pCi/L RA-05 12/01/10 16:13 / plj <br />DATA QUALITY <br />A/C Balance (± 5) -0.497 % Calculation 12/16110 07:041 kbh <br />Anions 5.49 meq/L Calculation 12/16/10 07:04 / kbh <br />Cations 5.44 meq/L Calculation 12116110 07:041 kbh <br />Solids, Total Dissolved Calculated 329 mg/L Calculation 12/16/10 07:04 / kbh <br />TDS Balance (0.80 - 1.20) 1.08 Calculation 12/16/10 07:04 / kbh <br />FIELD PARAMETERS <br />Conductivity 550 umhoslcm FIELD 11/17/10 10:20 / <br />pH 7.70 s. u. FIELD 11/17/10 10:20 / <br />Temperature 5.5 `C FIELD 11/17/10 10:201 <br />"' Performed by Sampler <br />Report RL - Analyte reporting limit. MCL - Maximum conlaminanl level. <br />Definitions: QCL - Quality control limit. NO - Not detected at the reporting limit . <br />MDC - Minimum detectable concentratio n U - Not delecled at minimum delectable concentration <br />Page 10 of 39