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EISERGY <br />i_neoIanrokie_ti <br />www.energylab.com Helena, MT 877 472 - 0711 • Billings, NT 800 735 - 4489 • Casper, WY 888 - 235 - 0515 <br />Ana Excellence since 1Z2 ) Gillette, WY 866 - 686 -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: 07/11/12 <br />Project: Schwartz SW 6/6/2012 S26490- S26491 Collection Date: 06/06/12 17:00 <br />Lab ID: C12060395 -001 DateReceived: 06/11/12 <br />Client Sample ID: SW AWD (S26490) Matrix: Aqueous <br />MU/ <br />Analyses Result Units Qualifier RL QCL Method Analysis Date / By <br />METALS - TOTAL <br />Mercury ND mg /L 0 0001 E245 1 06/12/12 12:25 / rdw <br />Molybdenum ND mg /L 0.005 E200.8 06/22/12 14:03 / cp <br />Silver ND mg /L D 0.00008 E200,8 06/22/12 14:03 / cp <br />Thallium ND mg /L 0.0002 E200.8 06/22/12 14:03 / cp <br />Uranium 0.0012 mg /L 0.0002 E200.8 06/22/12 14:03 / cp <br />Zinc ND mg /L 0.005 E200.8 06/22/12 14:03 / cp <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.07 pCi /L U E903.0 06/25/12 16:56 / trs <br />Radium 226 precision ( ±) 0.1 pCi /L E903.0 06/25/12 16:56 / trs <br />Radium 226 MDC 0.15 pCi /L E903 0 06/25/12 16:56 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha -0.4 pCi /L U E900.0 06/16/12 20:02 / Ibb <br />Gross Alpha precision ( ±) 0.8 pCi /L E900.0 06/16/12 20:02 / Ibb <br />Gross Alpha MDC 1.5 pCi /L E900.0 06/16/12 20:02 / Ibb <br />Gross Beta -2 pCi /L U E900.0 06/16/12 2002 / Ibb <br />Gross Beta precision (±) 1.7 pCi /L E900.0 06/16/12 20:02 / Ibb <br />Gross Beta MDC 2.8 pCi /L E900.0 06/16/12 20:02 / Ibb <br />Radium 226 0.17 pCi /L E903 0 06/26/12 08:44 / trs <br />Radium 226 precision ( ±) 0.12 pCi /L E903.0 06/26/12 08:44 / trs <br />Radium 226 MDC 0.16 pCi /L E903.0 06/26/12 08:44 / trs <br />Radium 228 0.24 pCi /L U RA -05 06/20/12 17:41 / gb <br />Radium 228 precision ( ±) 0.64 pCi /L RA -05 06/20/12 17:41 / gb <br />Radium 228 MDC 1.1 pCi /L RA -05 06/20/12 17:41 / gb <br />DATA QUALITY <br />A/C Balance (± 5) 1.21 % A1030 E 06/22/12 06:59 / kbh <br />Anions 2.66 meq /L A1030 E 06/22/12 06:59 / kbh <br />Cations 2.73 meq /L A1030 E 06/22/12 06:59 / kbh <br />Solids, Total Dissolved Calculated 160 mg /L A1030 E 06/22/12 06:59 / kbh <br />TDS Balance (0.80 - 1.20) 1.18 A1030 E 06/22/12 06:59 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 292 umhos /cm FIELD 06/06/12 17:00 / "' <br />Field pH 7.63 s.u. FIELD 06/06/12 17:00 / "' <br />Field Temperature, C 15.5 °C FIELD 06/06/12 17:00 / "" <br />"' Field data provided by client <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 />MCL - Maximum contaminant level <br />ND - Not detected at the reporting limit <br />D - RL increased due to sample matrix. <br />Page 4 of 28 <br />