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• IPC=RA www.dw&b.com <br />( Helena, MT 811 472 -0711 • Billings, MT 800 - 7354489 • Casper, WY 888 - 235 -0515 <br />Units <br />MJ AwwEhvyw J Gillette, WY 866- 686 -7175 • Rapid City, SG 888- 672 -1225 • College Station, Tx 888 -690 -2218 <br />MCL/ <br />QCL Method <br />Analysis Date / By <br />LABORATORY ANALYTICAL REPORT <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Prepared by Casper, WY Branch <br />1.4 <br />Mercury <br />ND <br />Revised Date: <br />06/18/13 <br />Client: <br />Cotter Corporation <br />Report Date: <br />06/13/13 <br />Project: <br />Schwartz 5/16/13 S26979 Collection Date: <br />05/16/13 13:35 <br />Lab ID: <br />013050681 -001 <br />DateReceived: <br />05/17/13 <br />Client Sample ID <br />SW PL (S26979) <br />Matrix: <br />Aqueous <br />Analyses <br />Result <br />Units <br />Qualifiers RL <br />MCL/ <br />QCL Method <br />Analysis Date / By <br />METALS -TOTAL <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Alpha MDC <br />1.4 <br />Mercury <br />ND <br />mg /L <br />0.0001 <br />E245.1 <br />05/22/13 10:38 / jI1 <br />Molybdenum <br />ND <br />mg /L <br />0.005 <br />E200.8 <br />05/25/13 02:58 / clm <br />Silver <br />ND <br />mg /L <br />D 0.00008 <br />E200.8 <br />06/07/13 00:24 / cp <br />Thallium <br />ND <br />mg /L <br />0.0002 <br />E200.8 <br />05/25/13 02:58 / clm <br />Uranium <br />0.0017 <br />mg /L <br />0.0002 <br />E200.8 <br />05/25/13 02:58 / clm <br />Zinc <br />ND <br />mg /L <br />0.005 <br />E200.8 <br />05/29/13 03:33 / cp <br />RADIONUCLIDES - DISSOLVED <br />Radium 226 0.08 pCi /L U E903.0 05/29/13 09:32 / Imc <br />Radium 226 precision ( ±) 0.13 pCi /L E903.0 05/29/13 09:32 / Imc <br />Radium 226 MDC 0.20 pCi /L E903.0 05/29/13 09:32 / Imc <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />2.0 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Alpha precision ( ±) <br />0.9 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Alpha MDC <br />1.4 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Beta <br />1.9 <br />pCi /L U <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Beta precision ( ±) <br />1.6 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Gross Beta MDC <br />2.6 <br />pCi /L <br />E900.0 <br />06/04/13 17:36 / Ibb <br />Radium 226 <br />0.09 <br />pCi /L U <br />E903.0 <br />06/04/13 18:13 / Imc <br />Radium 226 precision ( ±) <br />0.10 <br />pCi /L <br />E903.0 <br />06/04/13 18:13 / Imc <br />Radium 226 MDC <br />0.15 <br />pCi /L <br />E903.0 <br />06/04/13 18:13 / Imc <br />Radium 228 <br />-0.3 <br />pCi /L U <br />RA -05 <br />05/30/13 20:11 / gb <br />Radium 228 precision ( ±) <br />1.1 <br />pCi /L <br />RA -05 <br />05/30/13 20:11 / gb <br />Radium 228 MDC <br />1.8 <br />pCi /L <br />RA -05 <br />05/30/13 20:11 / gb <br />DATA QUALITY <br />A/C Balance (± 5) <br />0.316 <br />% <br />A1030 E <br />06/04/13 15:03 / kbh <br />Anions <br />1.88 <br />meq /L <br />A1030 E <br />06/04/13 15:03 / kbh <br />Cations <br />1.89 <br />meq /L <br />A1030 E <br />06/04/13 15:03 / kbh <br />Solids, Total Dissolved Calculated <br />120 <br />mg /L <br />A1030 E <br />06/04/13 15:03 / kbh <br />TDS Balance (0.80 - 1.20) <br />1.23 <br />A1030 E <br />06/04/13 15:03 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 205 umhos /cm FIELD 05/16/13 13:35 / * ** <br />Field pH 7.57 s.u. FIELD 05/16/13 13:35 / * ** <br />Field Temperature, C 11.6 °C FIELD 05/16/13 13:35 / * ** <br />* ** Field data provided by client <br />Report RL - Analyte reporting limit. MCL - Maximum contaminant level. <br />Definitions: OCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum detectable concentration D - RL increased due to sample matrix. <br />U - Not detected at minimum detectable concentration <br />Page 4 of 25 <br />