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" www.ener&b.com Helena, MY 117472 -0711 • Billings, W 801 - 7354489 • Casper, WY 888- 235 -0515 <br />Gillette, WY 866 -686 -1115 • Rapid City, SO 886- 672 -1225 • College Station, TX 888 -690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: <br />Cotter Corporation <br />Report Date: <br />08/29/13 <br />Project: <br />Schwartz -GW 8/2/13 S27063 <br />Collection Date: <br />08/02/13 09:55 <br />Lab ID: <br />013080122 -001 <br />DateReceived: <br />08/05/13 <br />Client Sample ID <br />Mine Refill (S27063) <br />Matrix: <br />Aqueous <br />E300.0 <br />08/06/13 15:26 / we <br />MCL/ <br />Analyses <br />Result Units <br />Qualifiers RL QCL Method Analysis Date / By <br />MAJOR IONS <br />Chloride <br />23 <br />mg /L D <br />2 <br />E300.0 <br />08/06/13 15:26 / we <br />Sulfate <br />1710 <br />mg /L D <br />8 <br />E300.0 <br />08/06/13 15:26 / we <br />NON - METALS <br />Organic Carbon, Total (TOC) <br />9.6 <br />mg /L <br />0.5 <br />A5310 C <br />08/06/13 11:07 / lba <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C <br />2940 <br />mg /L <br />20 <br />A2540 C <br />08/06/13 15:38 / tmm <br />METALS - TOTAL <br />Arsenic <br />0.015 <br />mg /L <br />0.001 <br />E200.8 <br />08/09/13 17:27 / clm <br />Barium <br />0.07 <br />mg /L <br />0.05 <br />E200.7 <br />08/07/13 15:40 / sf <br />Iron <br />4.91 <br />mg /L <br />0.03 <br />E200.7 <br />08/07/13 15:40 / sf <br />Manganese <br />3.25 <br />mg /L <br />0.001 <br />E200.7 <br />08/07/13 15:40 / sf <br />Molybdenum <br />0.396 <br />mg /L <br />0.001 <br />E200.8 <br />08/09/13 17:27 / clm <br />Uranium <br />3.45 <br />mg /L <br />0.0003 <br />E200.8 <br />08/09/13 17:27 / clm <br />RADIONUCLIDES - TOTAL <br />Radium 226 <br />120 <br />pCi /L <br />E903.0 <br />08/26/13 09:10 / Imc <br />Radium 226 precision ( ±) <br />2.0 <br />pCi /L <br />E903.0 <br />08/26/13 09:10 / Imc <br />Radium 226 MDC <br />0.15 <br />pCi /L <br />E903.0 <br />08/26/13 09:10 / Imc <br />Radium 228 <br />0.17 <br />pCi /L U <br />RA -05 <br />08/20/13 13:42 / plj <br />Radium 228 precision ( ±) <br />1.0 <br />pCi /L <br />RA -05 <br />08/20/13 13:42 / plj <br />Radium 228 MDC <br />1.7 <br />pCi /L <br />RA -05 <br />08/20/13 13:42 / plj <br />Radium 226 + Radium 228 <br />120 <br />pCi /L <br />A7500 -RA <br />08/28/13 16:10 / res <br />Radium 226 + Radium 228 precision ( ±) <br />2.3 <br />pCi /L <br />A7500 -RA <br />08/28/13 16:10 / res <br />Radium 226 + Radium 228 MDC <br />1.7 <br />pCi /L <br />A7500 -RA <br />08/28/13 16:10 / res <br />FIELD PARAMETERS <br />Field Conductivity <br />3248 <br />umhos /cm <br />FIELD <br />08/02/13 09:55 <br />Field pH <br />7.12 <br />s.u. <br />FIELD <br />08/02/13 09:55 <br />Field Temperature, C <br />18.5 <br />°C <br />FIELD <br />08/02/13 09:55 <br />Flow <br />85 <br />gpm <br />FIELD <br />08/02/13 09:55 <br />* ** Field data provided by client <br />Report RL - Analyte reporting limit. <br />Definitions: (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 2 of 12 <br />