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www.Mgylab.com Helena,MT$77-472-0711 •Billings,MT 800-735-4489•Casper,WY OW235-0515 <br /> - AadyEfcslfi xaAtrc.fed? Gillette,WY 866-686-7175•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: 04/28/14 <br /> Project: Schwartz GW 04/09/14 S27455, S27457 Collection Date: 04/09/14 08:30 <br /> Lab ID: C14040376-001 DateReceived: 04/10/14 <br /> Client Sample ID: Mine Refill (S27455) Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Chloride 25 mg/L 3 E300.0 04/11/14 16:56/we <br /> Sulfate 1540 mg/L 5 E300.0 04/11/14 16:56/we <br /> NON-METALS <br /> Organic Carbon,Total(TOC) 3.1 mg/L 0.5 A5310 C 04/10/14 19:01 /jba <br /> PHYSICAL PROPERTIES <br /> Solids,Total Dissolved TDS @ 180 C 2780 mg/L 20 A2540 C 04/11/14 16:27/alp <br /> METALS-DISSOLVED <br /> Arsenic 0.012 mg/L 0.001 E200.8 04/18/14 09:18/cp <br /> Barium ND mg/L 0.05 E200.8 04/18/14 09:18/cp <br /> Iron 7.09 mg/L 0.03 E200.8 04/18/14 09:18/cp <br /> Manganese 2.60 mg/L 0.001 E200.8 04/18/14 09:18/cp <br /> Molybdenum 0.400 mg/L 0.001 E200.8 04/18/14 09:18/cp <br /> Uranium 4.96 mg/L 0.0003 E200.8 04/18/14 09:18/cp <br /> METALS-TOTAL <br /> Arsenic 0.014 mg/L 0.001 E200.8 04/16/14 21:40/clm <br /> Barium ND mg/L 0.05 E200.8 04/16/14 21:40/clm <br /> Iron 7.83 mg/L 0.03 E200.7 04/25/14 17:26/sf <br /> Manganese 2.50 mg/L 0.001 E200.8 04/16/14 21:40/c I m <br /> Molybdenum 0.459 mg/L 0.001 E200.8 04/16/14 21:40/clm <br /> Uranium 5.48 mg/L 0.0003 E200.8 04/16/14 21:40/clm <br /> RADIONUCLIDES-TOTAL <br /> Radium 226 183 pCi/L E903.0 04/21/14 10:31 /trs <br /> Radium 226 precision (±) 2.5 pCi/L E903.0 04/21/14 10:31 /trs <br /> Radium 226 MDC 0.17 pCi/L E903.0 04/21/14 10:31 /trs <br /> Radium 228 1.5 pCi/L RA-05 04/16/14 15:29/plj <br /> Radium 228 precision (±) 0.97 pCi/L RA-05 04/16/14 15:29/plj <br /> Radium 228 MDC 1.5 pCi/L RA-05 04/16/14 15:29/plj <br /> Radium 226+Radium 228 185 pCi/L A7500-RA 04/21/14 15:14/res <br /> Radium 226+Radium 228 precision(±) 2.7 pCi/L A7500-RA 04/21/14 15:14/res <br /> Radium 226+Radium 228 MDC 1.5 pCi/L A7500-RA 04/21/14 15:14/res <br /> FIELD PARAMETERS <br /> Field Conductivity 3080 umhos/cm FIELD 04/09/14 08:30 <br /> Field pH 7.01 s.u. FIELD 04/09/14 08:30/"* <br /> Field Temperature,C 17.4 'C FIELD 04/09/14 08:30 <br /> Flow 182 gpm FIELD 04/09/14 08:30/*" <br /> Oxidation-Reduction Potential(ORP) 88 mV FIELD 04/09/14 08:30 <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 <br /> Page 3 of 26 <br />