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T " www.mwg4ab.com Helena, MT 077 -472 -0711 • Billings, W 800- 7354409 a Casper, WY 888 - 235 -0515 <br />NO 1 6-14 a AeaWW Enema Shia IJU � Gillette, WY 866 -686 -7175 • Rapid City, SO 880 -672 -1225 • College Station, TX 888 - 690 -2218 <br />MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS - TOTAL <br />Mercury <br />LABORATORY ANALYTICAL REPORT <br />mg /L <br />0.0001 <br />E245.1 <br />Prepared by Casper, WY Branch <br />Molybdenum <br />ND <br />Client: <br />Cotter Corporation <br />Report Date: <br />05/29/13 <br />Project: <br />Schwartz -SW 5/4/13 S26868 S26869 <br />Collection Date: <br />05/04/13 10:05 <br />Lab ID: <br />C13050235 -001 <br />DateReceived: <br />05/07/13 <br />Client Sample ID <br />SW -AWD (S26869) <br />Matrix: <br />Aqueous <br />MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS - TOTAL <br />Mercury <br />ND <br />mg /L <br />0.0001 <br />E245.1 <br />05/08/13 13:28 / jl 1 <br />Molybdenum <br />ND <br />mg /L <br />0.005 <br />E200.8 <br />05/10/13 05:30 / cp <br />Silver <br />ND <br />mg /L <br />D 0.00008 <br />E200.8 <br />05/10/13 05:30 / cp <br />Thallium <br />ND <br />mg /L <br />0.0002 <br />E200.8 <br />05/10/13 05:30 / cp <br />Uranium <br />0.0008 <br />mg /L <br />0.0002 <br />E200.8 <br />05/10/13 05:30 / cp <br />Zinc <br />ND <br />mg /L <br />0.005 <br />E200.8 <br />05/10/13 05:30 / cp <br />RADIONUCLIDES - DISSOLVED <br />0.09 <br />pCi /L <br />U <br />E903.0 <br />05/22/13 13:24 / Imc <br />Radium 226 <br />0.05 <br />pCi /L <br />U <br />E903.0 <br />05/14/13 07:45 / plj <br />Radium 226 precision ( ±) <br />0.08 <br />pCi /L <br />E903.0 <br />05/14/13 07:45 / plj <br />Radium 226 MDC <br />013 <br />pCi /L <br />U <br />E903.0 <br />05/14/13 07:45 / plj <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />0.8 <br />pCi /L <br />U <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Gross Alpha precision ( ±) <br />1 <br />pCi /L <br />05/17/13 06:51 / kbh <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Gross Alpha MDC <br />1.6 <br />pCi /L <br />Solids, Total Dissolved Calculated <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Gross Beta <br />1.5 <br />pCi /L <br />U <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Gross Beta precision ( ±) <br />1.5 <br />pCi /L <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Gross Beta MDC <br />2.4 <br />pCi /L <br />E900.0 <br />05/24/13 16:08 / Ibb <br />Radium 226 <br />0.09 <br />pCi /L <br />U <br />E903.0 <br />05/22/13 13:24 / Imc <br />Radium 226 precision ( ±) <br />0.1 <br />pCi /L <br />E903.0 <br />05/22/13 13:24 / Imc <br />Radium 226 MDC <br />0.14 <br />pCi /L <br />E903.0 <br />05/22/13 13:24 / Imc <br />Radium 228 <br />-0.02 <br />pCi /L <br />U <br />RA -05 <br />05/17/13 21:54 / gb <br />Radium 228 precision ( ±) <br />0.70 <br />pCi /L <br />RA -05 <br />05/17/13 21:54 / gb <br />Radium 228 MDC <br />1.2 <br />pCi /L <br />RA -05 <br />05/17/13 21:54 / gb <br />DATA QUALITY <br />A/C Balance (± 5) <br />1.28 <br />% <br />A1030 E <br />05/17/13 06:51 / kbh <br />Anions <br />1.92 <br />meq /L <br />A1030 E <br />05/17/13 06:51 / kbh <br />Cations <br />1.97 <br />meq /L <br />A1030 E <br />05/17/13 06:51 / kbh <br />Solids, Total Dissolved Calculated <br />120 <br />mg /L <br />A1030 E <br />05/17/13 06:51 / kbh <br />TDS Balance (0.80 - 1.20) <br />1.11 <br />A1030 E <br />05/17/13 06:51 / kbh <br />FIELD PARAMETERS <br />Field Conductivity 212.1 umhos /cm FIELD 05/04/13 10:05 / <br />Field pH 7.40 s.u. FIELD 05/04/13 10:05 / <br />Field Temperature, C 4.1 °C FIELD 05/04/13 10:05 / <br />"' Field data provided by client <br />Report RL - Analyte reporting limit MCL - Maximum contaminant level. <br />Definitions: QCL - 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 29 <br />