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• www.mda,b.com Helena,W$77472-0711 •Billings,MT 800-7354489•Casper,WY 888-235-8515 <br /> f Gillette,WY 666486-7175•Rapid City,SO 888-672-1225•College Station,TX 888-690-2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/29/14 <br /> Project: Schwartz -GW 07/03/14 S27602 Collection Date: 07/03/14 08:45 <br /> Lab ID: C14070210-001 Date Received: 07/07/14 <br /> Client Sample ID: Mine Refill (S27602) Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Chloride 21 mg/L 1 E300.0 07/09/14 21:41 /we <br /> Sulfate 1530 mg/L D 4 E300.0 07/09/14 21:41 /we <br /> NON-METALS <br /> Organic Carbon,Total (TOC) 2.8 mg/L 0.5 A5310 C 07/08/14 19:43/jba <br /> PHYSICAL PROPERTIES <br /> Solids,Total Dissolved TDS @ 180 C 2780 mg/L 19 A2540 C 07/08/14 13:42/tmm <br /> METALS-DISSOLVED <br /> Arsenic 0.013 mg/L 0.001 E200.8 07/11/14 17:35/clm <br /> Barium ND mg/L 0.05 E200.8 07/10/14 22:07/clm <br /> Iron 10.4 mg/L 0.03 E200.7 07/14/14 19:56/sf <br /> Manganese 2.42 mg/L D 0.008 E200.7 07/14/14 19:56/sf <br /> Molybdenum 0.58 mg/L D 0.04 E200.7 07/14/14 19:56/sf <br /> Uranium 6.2 mg/L D 0.4 E200.7 07/14/14 19:56/sf <br /> METALS-TOTAL <br /> Arsenic 0.014 mg/L 0.001 E200.8 07/10/14 19:56/cp <br /> Barium ND mg/L 0.05 E200.8 07/10/14 19:56/cp <br /> Iron 11.3 mg/L 0.03 E200.7 07/11/14 03:13/sf <br /> Manganese 2.56 mg/L 0.001 E200.8 07/10/14 18:47/clm <br /> Molybdenum 0.729 mg/L D 0.005 E200.7 07/11/14 03:13/sf <br /> Uranium 7.12 mg/L 0.0003 E200.8 07/10/14 18:47/clm <br /> RADIONUCLIDES-TOTAL <br /> Radium 226 212 pCi/L E903.0 07/28/14 09:17/Imc <br /> Radium 226 precision (±) 2.6 pCi/L E903.0 07/28/14 09:17/Imc <br /> Radium 226 MDC 0.16 pCi/L E903.0 07/28/14 09:17/Imc <br /> Radium 228 2.7 pCi/L RA-05 07/21/14 11:58/plj <br /> Radium 228 precision(±) 0.75 pCi/L RA-05 07/21/14 11:58/plj <br /> Radium 228 MDC 1.0 pCi/L RA-05 07/21/14 11:58/plj <br /> Radium 226+Radium 228 215 pCi/L A7500-RA 07/28/14 13:25/rdw <br /> Radium 226+Radium 228 precision(±) 2.7 pCi/L A7500-RA 07/28/14 13:25/rdw <br /> Radium 226+Radium 228 MDC 1.0 pCi/L A7500-RA 07/28/14 13:25/rdw <br /> FIELD PARAMETERS <br /> Field Conductivity 3047 umhos/cm FIELD 07/03/14 08:45/*** <br /> Field pH 6.97 s.u. FIELD 07/03/14 08:45/*** <br /> Field Temperature,C 18.5 °C FIELD 07/03/14 08:45/*** <br /> Flow 184 gpm FIELD 07/03/14 08:45/*** <br /> Oxidation-Reduction Potential(ORP) 144 mV FIELD 07/03/14 08:45/*** <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 /> Page 2 of 14 <br />