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• www.ewgylab.com Helena,MT 877-472-0711 •Billings,MT 600-735-4489•Casper,WY 888-235-0515 <br /> ®- Aedr�ralErcramwSimce fBIiS Gillette,WY 866-686-7175•Rapid City,SO 886-672-1225•College Station,TX 888-690-2218 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 07/11/14 <br /> Project: Schwartz-GW 6/16/14 S27576 Collection Date: 06/16/14 09:30 <br /> Lab ID: C14060740-001 DateReceived: 06/19/14 <br /> Client Sample ID: Mine Refill (S27576) Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Chloride 24 mg/L 1 E300.0 06/20/14 17:04/we <br /> Sulfate 1580 mg/L D 4 E300.0 06/20/14 17:04/we <br /> NON-METALS <br /> Organic Carbon,Total(TOC) 5.2 mg/L 0.5 A5310 C 06/20/14 12:50/jba <br /> PHYSICAL PROPERTIES <br /> Solids,Total Dissolved TDS @ 180 C 2790 mg/L 18 A2540 C 06/20/14 13:51 /alp <br /> METALS-DISSOLVED <br /> Arsenic 0.014 mg/L 0.001 E200.8 06/23/14 22:47/cp <br /> Barium ND mg/L 0.05 E200.8 06/23/14 22:47/cp <br /> Iron 9.67 mg/L 0.03 E200.7 07/08/14 21:46/sf <br /> Manganese 2.57 mg/L 0.001 E200.8 06/23/14 22:47/cp <br /> Molybdenum 0.647 mg/L 0.001 E200.8 06/23/14 22:47/cp <br /> Uranium 6.50 mg/L 0.0003 E200.8 06/23/14 22:47/cp <br /> METALS-TOTAL <br /> Arsenic 0.021 mg/L 0.001 E200.8 06/26/14 03:11 /clm <br /> Barium ND mg/L 0.05 E200.8 06/26/14 03:11 /clm <br /> Iron 10.2 mg/L 0.03 E200.8 06/26/14 03:11 /clm <br /> Manganese 2.58 mg/L 0.001 E200.8 06/26/14 03:11 /clm <br /> Molybdenum 0.633 mg/L 0.001 E200.8 06/26/14 03:11 /clm <br /> Uranium 6.26 mg/L 0.0003 E200.8 06/26/14 03:11 /clm <br /> RADIONUCLIDES-TOTAL <br /> Radium 226 219 pCi/L E903.0 07/08/14 14:43/Imc <br /> Radium 226 precision(±) 3.0 pCi/L E903.0 07/08/14 14:43/Imc <br /> Radium 226 MDC 0.17 pCi/L E903.0 07/08/14 14:43/Imc <br /> Radium 228 2.0 pCi/L RA-05 07/03/14 08:59/plj <br /> Radium 228 precision(±) 0.71 pCi/L RA-05 07/03/14 08:59/plj <br /> Radium 228 MDC 1.0 pCi/L RA-05 07/03/14 08:59/plj <br /> Radium 226+Radium 228 221 pCi/L A7500-RA 07/11/14 11:29/res <br /> Radium 226+Radium 228 precision(±) 3.1 pCi/L A7500-RA 07/11/14 11:29/res <br /> Radium 226+Radium 228 MDC 1.0 pCi/L A7500-RA 07/11/14 11:29/res <br /> FIELD PARAMETERS <br /> Field Conductivity 3057 umhos/cm FIELD 06/16/14 09:30/- <br /> Field pH 7.02 s.u. FIELD 06/16/14 09:30/- <br /> Field Temperature,C 17.8 °C FIELD 06/16/14 09:30/- <br /> Flow 187 gpm FIELD 06/16/14 09:30/- <br /> Oxidation-Reduction Potential(ORP) 110 my FIELD 06/16/14 09:30/- <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 D-RL increased due to sample matrix. <br /> Page 2 of 13 <br />