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1 '14, WWWO"ab.corn Helena, MT 671472-0711 • Billings, MT 000-735-4489 • Casper, WY 868-235-0515 <br />n Aw6talEaaf w2=186? Gillette, wY 866-686-7175 • Rapid City, SO 088-672-1225 • College Station, TX 868-690-2216 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 03/04/11 <br />Project: Schwartz SW02-03-1 1 S25602-S25608 Collection Date: 02/03/11 13:20 <br />Lab ID: 01 1 0201 89-007 DateReceived: 02/07/11 <br />Client Sample ID: SW BPL (S25608) Matrix: Aqueous <br /> MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS - TOTAL <br />Molybdenum 0.023 mg/L 0.005 E200.8 02/12/11 04:22 / sml <br />Silver ND mg/L L 0.0002 E200.8 02/09/11 16:52 / sml <br />Thallium ND mg/L 0.0002 E200.8 02/09/11 16:52 / sml <br />Uranium 0.713 mg/L 0.0002 E200.8 02/12/11 04:22 / sml <br />Zinc 0.022 mg/L 0.005 E200.8 02/12/11 04:22 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.51 pCi/L E903.0 02/15/11 01:06 / trs <br />Radium 226 precision (±) 0.17 pCi/L E903.0 02/15/11 01:06 / trs <br />Radium 226 MDC 0.15 pCi/L E903.0 02/15/11 01:06 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 556 pCi/L E900.0 02/15/11 08:36 / ep <br />Gross Alpha precision (±) 10.5 pCi/L E900.0 02/15/11 08:36 / ep <br />Gross Alpha MDC 2.6 pCi/L E900.0 02/15/11 08:36 / ep <br />Gross Beta 129 pCi/L E900.0 02/15/11 08:36 / ep <br />Gross Beta precision (±) 3.0 pCi/L E900.0 02/15/11 08:36 / ep <br />Gross Beta MDC 2.4 pCi/L E900.0 02/15/11 08:36 / ep <br />Radium 226 0.77 pCi/L E903.0 02/28/11 09:55 / trs <br />Radium 226 precision (±) 0.21 pCi/L E903.0 02/28/11 09:55 / trs <br />Radium 226 MDC 0.16 pCi/L E903.0 02/28/11 09:55 / trs <br />Radium 228 1.7 pCi/L RA-05 02/22/11 15:34 / plj <br />Radium 228 precision (±) 0.95 pCi/L RA-05 02/22/11 15:34 / plj <br />Radium 228 MDC 1.5 pCi/L RA-05 02/22/11 15:34 / plj <br />DATA QUALITY <br />A/C Balance (± 5) 0.184 % Calculation 02/23/11 15:28 / kbh <br />Anions 7.84 meq/L Calculation 02/23/11 15:28 / kbh <br />Cations 7.87 meq/L Calculation 02/23/11 15:28 / kbh <br />Solids, Total Dissolved Calculated 476 mg/L Calculation 02/23/11 15:28 / kbh <br />TDS Balance (0.80 - 1.20) 1.07 Calculation 02/23/11 15:28 / kbh <br />FIELD PARAMETERS <br />Conductivity 760 umhos/cm FIELD 02/03/11 13:20 / - <br />pH 7.94 s.u. FIELD 02/03/11 13:20 / - <br />Temperature 4.6 °C FIELD 02/03/11 13:20 / - <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 concentrati on L - Lowest available reporting limit for the analytical methoc <br /> used. <br />Page 12 of 37