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ENERGY <br />ARORATORIES <br />www.energylab.com Helena, MT 877 472 - 0711 • Billings, MT 800 - 735 - 4489 • Casper, WY 888 - 235 - 0515 <br />am 8151 I Gillette, WY 866 - 686 -7175 • Rapid City, SO 888 -672 -1225 • College Station, TX 888- 680 -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 14:55 <br />Lab ID: C11050423 -008 DateReceived: 05/12/11 <br />Client Sample ID: SW BPL (S25784) 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 10:44 / rdw <br />Molybdenum 0.005 mg /L 0.005 E200.8 05/17/11 12:10 / sml <br />Silver ND mg /L 0.00005 E200.8 05/17/11 12:10 / sml <br />Thallium ND mg /L 0.0002 E200.8 05/17/11 12:10 / sml <br />Uranium 0.0890 mg /L 0.0002 E200.8 05/17/11 12:10 / sml <br />Zinc 0.026 mg /L 0.005 E200.8 05/17/11 12:10 / sml <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 -0.1 pCi /L U E903.0 05/23/11 17:27 / trs <br />Radium 226 precision ( ±) 0.07 pCi /L E903.0 05/23/11 17:27 / trs <br />Radium 226 MDC 0.17 pCi /L E903.0 05/23/11 17:27 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha 71.8 pCi /L E900.0 05/22/11 10:59 / ep <br />Gross Alpha precision ( ±) 3.8 pCi /L E900.0 05/22/11 10:59 / ep <br />Gross Alpha MDC 2.2 pCi /L E900.0 05/22/11 10:59 / ep <br />Gross Beta 19.1 pCi /L E900.0 05/22/11 10:59 / ep <br />Gross Beta precision ( ±) 1.7 pCi /L E900.0 05/22/11 10:59 / ep <br />Gross Beta MDC 2.4 pCi /L E900.0 05/22/11 10:59 / ep <br />Radium 226 0.09 pCi /L U E903.0 06/06/11 17:16 / trs <br />Radium 226 precision ( ±) 0.15 pCi /L E903.0 06/06/11 17:16 / trs <br />Radium 226 MDC 0.25 pCi /L E903.0 06/06/11 17:16 / trs <br />Radium 228 0.02 pCi /L U RA -05 06/01/11 11:41 / plj <br />Radium 228 precision ( ±) 0.84 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 />NC Balance (± 5) 1.29 % Calculation 05/25/11 08:17 / kbh <br />Anions 3.55 meq /L Calculation 05/25/11 08:17 / kbh <br />Cations 3.65 meq /L Calculation 05/25/11 08:17 / kbh <br />Solids, Total Dissolved Calculated 217 mg /L Calculation 05/25/11 08:17 / kbh <br />TDS Balance (0.80 - 1.20) 1.20 Calculation 05/25/11 08:17 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 372 umhos /cm FIELD 05/10/11 14:55 / " "' <br />Field pH 8.36 s.u. FIELD 05/10/11 14:55 / " "" <br />Field Temperature, C 13.6 °C FIELD 05/10/11 14:55 / " "" <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 13 of 44 <br />