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ENERGY <br />www.energYlab.con <br />Azfytfcat E Strc.1952 <br />Helena, MT 877472 -0711 • Billings, MT 800- 735 -4489 • Casper, WY 888 -235 -0515 <br />Gillette, WY 866 -696 -7175 • Rapid City, SD 888 -672 -1225 • College Station, TX 888 -690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 06/20/11 <br />Project: Schwartz SW 5/10/11 S25777- S25784 Collection Date: 05/10/11 10:15 <br />Lab ID: C11050423 -001 DateReceived: 05/12/11 <br />Client Sample ID: SW AWD (S25777) Matrix: Aqueous <br />MCL/ <br />Analyses Result Units Qualifier RL QCL Method Analysis Date / By <br />METALS - TOTAL <br />Mercury ND mg /L 0.0001 E245.1 05/18/11 10:43 / rdw <br />Molybdenum ND mg /L 0.005 E200.7 05/16/11 19:40 / cp <br />Silver ND mg /L 0.00005 E200.8 05/17/11 05:10 / sml <br />Thallium ND mg /L 0.0002 E200.8 05/17/11 05:10 / sml <br />Uranium 0.0011 mg /L 0.0002 E200.8 05/17/11 05:10 / sml <br />Zinc ND mg /L 0.005 E200.8 05/17/11 05:10 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.09 pCi /L U E903.0 05/23/11 15:32 / trs <br />Radium 226 precision ( ±) 0.11 pCi /L E903.0 05/23/11 15:32 / trs <br />Radium 226 MDC 0.17 pCi /L E903.0 05/23/11 15:32 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 4.4 pCi /L E900.0 06/11/11 11:38 / ep <br />Gross Alpha precision ( ±) 0.9 pCi /L E900.0 06/11/11 11:38 / ep <br />Gross Alpha MDC 1 pCi /L E900.0 06/11/11 11:38 / ep <br />Gross Beta 4.5 pCi /L E900.0 06/11/11 11:38 / ep <br />Gross Beta precision ( ±) 1.4 pCi /L E900.0 06/11/11 11:38 / ep <br />Gross Beta MDC 2.2 pCi /L E900.0 06/11/11 11:38 / ep <br />Radium 226 -0.1 pCi /L U E903.0 06/06/11 17:16 / trs <br />Radium 226 precision ( ±) 0.11 pCi /L E903.0 06/06/11 17:16 / trs <br />Radium 226 MDC 0.24 pCi /L E903.0 06/06/11 17:16 / trs <br />Radium 228 0.85 pCi /L U RA -05 06/01/11 11:41 / plj <br />Radium 228 precision ( ±) 0.87 pCi /L RA -05 06/01/11 11:41 / plj <br />Radium 228 MDC 1.4 pCi /L RA -05 06/01/11 11:41 / plj <br />DATA QUALITY <br />A/C Balance (± 5) 0.586 % Calculation 05/25/11 08:16 / kbh <br />Anions 2.68 meq /L Calculation 05/25/11 08:16 / kbh <br />Cations 2.71 meq /L Calculation 05/25/11 08:16 / kbh <br />Solids, Total Dissolved Calculated 162 mg /L Calculation 05/25/11 08:16 / kbh <br />TDS Balance (0.80 - 1.20) 1.22 Calculation 05/25/11 08:16 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 285 umhos /cm FIELD 05/10/11 10:15 / * ** <br />Field pH 7.80 s.u. FIELD 05/10/11 10:15 / * ** <br />Field Temperature, C 7.6 °C FIELD 05/10/11 10:15 / * ** <br />*** Performed by Sampler <br />Report <br />Definitions: <br />RL - Analyte reporting limit. <br />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 detectable concentration <br />Page 5 of 44 <br />