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ENERGY <br />www.energylab.com <br />MM l&.a $a co 1952 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 05/11/12 <br />Project: Schwartz SW 4/5/12 S26451- S26458 Collection Date: 04/05/12 10:35 <br />Lab ID: C12040313 - 008 DateReceived: 04/07/12 <br />Client Sample ID: SW BPL (S26458) Matrix: Aqueous <br />MCL/ <br />Analyses Result Units Qualifier RL QCL Method <br />METALS - TOTAL <br />Mercury ND mg /L 0.0001 E245.1 04/12/12 15:16 / clh <br />Molybdenum ND mg /L 0.005 E200.8 04/12/12 15:07 /smm <br />Silver ND mg /L D 0.00008 E200.8 04/12/12 15:07 / smm <br />Thallium ND mg /L 0.0002 E200.8 04/12/12 15:07 / smm <br />Uranium 0.0065 mg /L 0.0002 E200.8 04/12/12 15:07 / smm <br />Zinc ND mg /L 0.005 E200.8 04/12/12 15:07 / smm <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.07 pCi /L U E903.0 04/16/12 08:08 / Ibb <br />Radium 226 precision ( ±) 0.13 pCi /L E903.0 04/16/12 08:08 / Ibb <br />Radium 226 MDC 0.22 pCi /L E903.0 04/16/12 08:08 / Ibb <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 5.6 pCi /L E900.0 04/14/12 13:41 / ep <br />Gross Alpha precision ( ±) 1.1 pCi /L E900.0 04/14/12 13:41 / ep <br />Gross Alpha MDC 1.5 pCi /L E900.0 04/14/12 13:41 / ep <br />Gross Beta 2.3 pCi /L U E900.0 04/14/12 13:41 / ep <br />Gross Beta precision ( ±) 1.6 pCi /L E900.0 04/14/12 13:41 / ep <br />Gross Beta MDC 2.6 pCi /L E900.0 04/14/12 13:41 / ep <br />Radium 226 0.02 pCi /L U E903.0 04/24/12 12:02 / Ibb <br />Radium 226 precision ( ±) 0.08 pCi /L E903.0 04/24/12 12:02 / Ibb <br />Radium 226 MDC 0.14 pCi /L E903.0 04/24/12 12:02 / Ibb <br />Radium 228 -0.2 pCi /L U RA -05 04/17/12 10:56 / plj <br />Radium 228 precision ( ±) 0.83 pCi /L RA -05 04/17/12 10:56 / plj <br />Radium 228 MDC 1.4 pCi /L RA -05 04/17/12 10:56 / plj <br />DATA QUALITY <br />A/C Balance (± 5) -1.78 % Calculation 04/18/12 08:00 / kbh <br />Anions 2.25 meq /L Calculation 04/18/12 08:00 / kbh <br />Cations 2.17 meq /L Calculation 04/18/12 08:00 / kbh <br />Solids, Total Dissolved Calculated 137 mg /L Calculation 04/18/12 08:00 / kbh <br />TDS Balance (0.80 - 1.20) 0.990 Calculation 04/18/12 08:00 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 241 umhos /cm FIELD 04/05/12 10:35 / "' <br />Field pH 7.29 s.u. FIELD 04/05/12 10:35 /*** <br />Field Temperature, C 3.7 °C FIELD 04/05/12 10:35 / "' <br />"` Performed by Sampler <br />Report <br />Definitions: <br />RL - Analyte reporting limit. <br />QCL - Quality control limit. <br />MDC - Minimum detectable concentration <br />U - Not detected at minimum detectable concentration <br />Helena, MT 817- 472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -0515 <br />Gillette, WY 866 - 686 - 7175 • Rapid City, SO 888 - 672 - 1225 • College Station, TX 888 - 690 - 2218 <br />MCL - Maximum contaminant level. <br />ND - Not detected at the reporting limit. <br />D - RL increased due to sample matrix. <br />Analysis Date / By <br />Page 13 of 42 <br />