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www.energylab.com Helena, MT 877- 472 -0711 • Billings, MT 800 - 735 -4489 • Casper, WY 888 - 235 -8515 <br />AW6"rxa%=1,- 102 Gillette, WY 866 -686 -7175 • Rapid City, So 886- 672 -1225 • College Station, T% 888 -690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 09/30/14 <br />Project: Schwartz -GW 9/16/14 S27663 Collection Date: 09/16/14 08:00 <br />Lab ID: C14090659 -001 DateReceived: 09/17/14 <br />Client Sample ID: Mine Refill (S27663) Matrix: Aqueous <br />MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />MAJOR IONS <br />Chloride <br />23 <br />mg /L <br />1 <br />E300.0 <br />09/18/14 04:54 / we <br />Sulfate <br />1500 <br />mg /L <br />D 4 <br />E300.0 <br />09/18/14 04:54 / we <br />NON - METALS <br />Organic Carbon, Total (TOC) <br />3.4 <br />mg /L <br />0.5 <br />A5310 C <br />09/17/14 22:38 / jba <br />PHYSICAL PROPERTIES <br />Solids, Total Dissolved TDS @ 180 C <br />2700 <br />mg /L <br />18 <br />A2540 C <br />09/19/14 09:28 / alp <br />METALS - DISSOLVED <br />Arsenic <br />0.023 <br />mg /L <br />0.001 <br />E200.8 <br />09/30/14 00:30 / cp <br />Barium <br />ND <br />mg /L <br />0.05 <br />E200.7 <br />09/22/14 15:30 / sf <br />Iron <br />13.7 <br />mg /L <br />0.03 <br />E200.7 <br />09/22/14 15:30 / sf <br />Manganese <br />2.20 <br />mg /L <br />D 0.008 <br />E200.7 <br />09/22/14 15:30 / sf <br />Molybdenum <br />0.87 <br />mg /L <br />D 0.04 <br />E200.7 <br />09/22/14 15:30 / sf <br />Uranium <br />6.6 <br />mg /L <br />D 0.4 <br />E200.7 <br />09/22/14 15:30 / sf <br />METALS - TOTAL <br />Arsenic <br />0.023 <br />mg /L <br />0.001 <br />E200.8 <br />09/23/14 17:42 / cp <br />Barium <br />ND <br />mg /L <br />0.05 <br />E200.7 <br />09/22/14 17:52 / sf <br />Iron <br />13.9 <br />mg /L <br />0.03 <br />E200.7 <br />09/22/14 17:52 / sf <br />Manganese <br />2.19 <br />mg /L <br />0.001 <br />E200.7 <br />09/22/14 17:52 / sf <br />Molybdenum <br />0.89 <br />mg /L <br />D 0.01 <br />E200.7 <br />09/22/14 17:52 / sf <br />Uranium <br />6.6 <br />mg /L <br />D 0.2 <br />E200.7 <br />09/22/14 17:52 / sf <br />RADIONUCLIDES - TOTAL <br />Radium 226 <br />218 <br />pCi /L <br />E903.0 <br />09/29/14 10:10 / rdw <br />Radium 226 precision ( ±) <br />2.8 <br />pCi /L <br />E903.0 <br />09/29/14 10:10 / rdw <br />Radium 226 MDC <br />0.18 <br />pCi /L <br />E903.0 <br />09/29/14 10:10 / rdw <br />Radium 228 <br />2.5 <br />pCi /L <br />RA -05 <br />09/23/14 12:39 / plj <br />Radium 228 precision ( ±) <br />0.95 <br />pCi /L <br />RA -05 <br />09/23/14 12:39 / plj <br />Radium 228 MDC <br />1.4 <br />pCi /L <br />RA -05 <br />09/23/14 12:39 / plj <br />Radium 226 + Radium 228 <br />221 <br />pCi /L <br />A7500 -RA <br />09/30/14 11:28 / res <br />Radium 226 + Radium 228 precision ( ±) <br />3.0 <br />pCi /L <br />A7500 -RA <br />09/30/14 11:28 / res <br />Radium 226 + Radium 228 MDC <br />1.4 <br />pCi /L <br />A7500 -RA <br />09/30/14 11:28 / res <br />FIELD PARAMETERS <br />Field Conductivity <br />3103 <br />umhos /cm <br />FIELD <br />09/16/14 08:00 <br />Field pH <br />6.90 <br />s.u. <br />FIELD <br />09/16/14 08:00 <br />Field Temperature, C <br />16.5 <br />°C <br />FIELD <br />09/16/14 08:00 <br />Flow <br />185 <br />gpm <br />FIELD <br />09/16/14 08:00 <br />Oxidation - Reduction Potential (ORP) <br />145 <br />mV <br />FIELD <br />09/16/14 08:00 <br />Field data provided by client <br />Report RL - Analyte reporting limit. <br />MCL - Maximum contaminant level. <br />Definitions: QCL - Quality control limit. <br />ND - Not detected <br />at the reporting limit. <br />MDC - Minimum detectable <br />concentration <br />D - RL increased due <br />to sample <br />matrix. <br />Page 2 of 13 <br />