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• www.e aZiab.com Helena, MT 817- 472 -0111 • Billings, MT 808- 735 -4489 • Casper, WY 888 -235 -8515 <br />[E:3!„ AnWatEmahm sax. tart Gillette, WY 866- 686 -7175 • Rapid -City, SO-BBB-672-1225 • College Station, TX 888 -690 -2218 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Project: Schwartz GW 12/23/13 S27306 <br />Lab ID: C13120854 -001 <br />Client Sample ID: Mine Refill (S27306) <br />Report Date: 02/03/14 <br />Collection Date: 12/23/13 09:45 <br />Date Rece i ved : 12/24/13 <br />Matrix: Aqueous <br />MCL/ <br />Analyses Result Units Qualifiers RL QCL Method Analysis Date / By <br />METALS -TOTAL <br />Manganese <br />2.86 <br />mg /L <br />0.001 <br />E200.7 <br />12/30/13 16:13 / sf <br />Mercury <br />ND <br />mg /L <br />H 0.0001 <br />E245.1 <br />01/28/14 15:33 / kja <br />Molybdenum <br />0.192 <br />mg /L <br />D 0.006 <br />E200.7 <br />12/30/13 16:13 / sf <br />Silver <br />ND <br />mg /L <br />0.001 <br />E200.8 <br />12/31/13 04:11 / cp <br />Thallium <br />0.0011 <br />mg /L <br />0.0005 <br />E200.8 <br />12/31/13 04:11 / cp <br />Uranium <br />3.07 <br />mg /L <br />0.0003 <br />E200.8 <br />01/03/14 19:48 / clm <br />Zinc <br />0.02 <br />mg /L <br />0.01 <br />E200.7 <br />12/30/13 16:13 / sf <br />RADIONUCLIDES - TOTAL <br />Gross Alpha <br />2700 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Gross Alpha precision ( ±) <br />45.2 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Gross Alpha MDC <br />11.1 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Gross Beta <br />1140 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Gross Beta precision ( ±) <br />23.0 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Gross Beta MDC <br />14.2 <br />pCi /L <br />E900.0 <br />01/30/14 13:24 / Ibb <br />Radium 226 <br />174 <br />pCi /L <br />E903.0 <br />01/07/14 12:49 / Imc <br />Radium 226 precision ( ±) <br />2.6 <br />pCi /L <br />E903.0 <br />01/07/14 12:49 / Imc <br />Radium 226 MDC <br />0.16 <br />pCi /L <br />E903.0 <br />01/07/14 12:49 / Imc <br />Radium 228 <br />1.7 <br />pCi /L <br />RA -05 <br />01/02/14 12:53 / plj <br />Radium 228 precision ( ±) <br />0.85 <br />pCi /L <br />RA -05 <br />01 /02/14 12:53 / plj <br />Radium 228 MDC <br />1.3 <br />pCi /L <br />RA -05 <br />01/02/14 12:53 / plj <br />Radium 226 + Radium 228 <br />176 <br />pCi /L <br />A7500 -RA <br />01/16/14 16:13 / res <br />Radium 226 + Radium 228 precision ( ±) <br />2.7 <br />pCi /L <br />A7500 -RA <br />01/16/14 16:13 / res <br />Radium 226 + Radium 228 MDC <br />1.3 <br />pCi /L <br />A7500 -RA <br />01/16/14 16:13 / res <br />DATA QUALITY <br />A/C Balance (± 5) <br />- 1.79 <br />% <br />A1030 E <br />0 1 A 6/14 07:50 / kbh <br />Anions <br />44.2 <br />meq /L <br />A1030 E <br />0 1 A 6/14 07:50 / kbh <br />Cations <br />42.6 <br />meq /L <br />A1030 E <br />01 /16/14 07:50 / kbh <br />Solids, Total Dissolved Calculated <br />2700 <br />mg /L <br />A1030 E <br />01/16/14 07:50 / kbh <br />TDS Balance (0.80 - 1.20) <br />1.07 <br />A1030 E <br />01/16/14 07:50 / kbh <br />FIELD PARAMETERS <br />Field Conductivity <br />3117 <br />umhos /cm <br />FIELD <br />12/23/13 09:45 / * ** <br />Field pH <br />7.07 <br />s.u. <br />FIELD <br />12/23/13 09:45 / * ** <br />Field Temperature, C <br />14.8 <br />°C <br />FIELD <br />12/23/13 09:45 <br />Oxidation - Reduction Potential (ORP) <br />80 <br />my <br />FIELD <br />12/23/13 09:45 <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 />H - Analysis performed past recommended holding time. <br />Page 4 of 31 <br />