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ENERGY <br />4 <br />www.energylab.com <br />Analytical Exes a y.,11s <br />l- <br />Helena, Mr 877- 472 -0711 • Billings, MT 800 -735 -4489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866. 686 -7115 • 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: 06/11/12 <br />Project: Schwartz SW 5/01/12 S26376 & S26383 Collection Date: 05/01/12 11:00 <br />Lab ID: C12050084 -001 DateReceived: 05/02/12 <br />Client Sample ID: SW AWD (S26376) 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 05/17/12 12:40 / jrm <br />Molybdenum ND mg /L 0.005 E200.8 05/04/12 16:28 / smm <br />Silver ND mg /L 0.00005 E200.8 05/04/12 17:38 / cp <br />Thallium ND mg /L 0.0002 E200.8 05/04/12 16:28 / smm <br />Uranium 0.0009 mg /L 0.0002 E200.8 05/04/12 16:28 / smm <br />Zinc ND mg /L 0.005 E200.8 05/04/12 16:28 / smm <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.11 pCi /L U E903.0 05/09/12 11:58 / trs <br />Radium 226 precision ( ±) 0.1 pCi /L E903.0 05/09/12 11:58 / trs <br />Radium 226 MDC 0.13 pCi /L E903.0 05/09/12 11:58 / trs <br />RADIONUCLIDES - TOTAL <br />Gross Alpha -0.6 pCi /L U E900.0 06/07/12 08:24 / Ibb <br />Gross Alpha precision ( ±) 0.8 pCi /L E900.0 06/07/12 08:24 / Ibb <br />Gross Alpha MDC 1.5 pCi /L E900.0 06/07/12 08:24 / Ibb <br />Gross Beta 0.4 pCi /L U E900.0 06/07/12 08:24 / Ibb <br />Gross Beta precision ( ±) 1.5 pCi /L E900.0 06/07/12 08:24 / Ibb <br />Gross Beta MDC 2.5 pCi /L E900.0 06/07/12 08:24 / Ibb <br />Radium 226 -0.1 pCi /L U E903.0 06/05/12 10:52 / trs <br />Radium 226 precision ( ±) 0.07 pCi /L E903.0 06/05/12 10:52 / trs <br />Radium 226 MDC 0.18 pCi /L E903.0 06/05/12 10:52 / trs <br />Radium 228 0.43 pCi /L U RA -05 05/31/12 11:01 / plj <br />Radium 228 precision ( ±) 0.60 pCi /L RA -05 05/31/12 11:01 / plj <br />Radium 228 MDC 0.98 pCi /L RA -05 05/31/12 11:01 / plj <br />DATA QUALITY <br />NC Balance (± 5) -5.17 % Calculation 05/14/12 08:30 / kbh <br />Anions 2.30 meq /L Calculation 05/14/12 08:30 / kbh <br />Cations 2.07 meq /L Calculation 05/14/12 08:30 / kbh <br />Solids, Total Dissolved Calculated 135 mg /L Calculation 05/14/12 08:30 / kbh <br />TDS Balance (0.80 - 1.20) 1.12 Calculation 05/14/12 08:30 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 233 umhos /cm FIELD 05/01/12 11:00 / *** <br />Field pH 7.28 s.u. FIELD 05/01/12 11:00 / * ** <br />Field Temperature, C 7.6 °C FIELD 05/01/12 11:00 / * ** <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 29 <br />