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- Trust our People.Trust our Data. _ Billings,MT 800.735.4489 a Casper.WY 886.235.0515 <br /> Gillette,WY 866.686.7175 a Helena,MT 877.472.0711 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 11/13/17 <br /> Project: Schwartzwalder Mine Collection Date: 10/11/17 12:25 <br /> Lab ID: C17100515-003 DateReceived: 10/13/17 <br /> Client Sample ID: Mine Refill Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> NON-METALS <br /> Organic Carbon,Total(TOC) 42.0 mg/L D 0.8 A5310 C 10/17/17 17.12/dmb <br /> METALS,DISSOLVED <br /> Arsenic 0,082 mg/L 0.001 E200.8 10/26/17 02:26/eli-b <br /> Barium 0.21 mg/L 0.05 E200 7 10/19/17 22:27/eli-b <br /> Iron 123 mg/L 0.02 E200.7 10/19/17 22:27/eli-b <br /> Manganese 1.22 mg/L 0.001 E200.7 10/19/17 22:27/eli-b <br /> Molybdenum 2.61 mg/L 0.001 E200.8 10/26/17 02:26/eli-b <br /> Uranium 17A mg/L D 00008 E200.8 10/29/17 03:19/eli-b <br /> METALS,TOTAL <br /> Arsenic 0.090 mg/L 0.001 E200 8 10/28/17 05.09/eli-b <br /> Barium 049 mg/L 0,05 E200.7 10/20/17 06:51/eli-b <br /> Iron 17.3 mg/L 0.03 E200.7 10/20/17 06:51/eli-b <br /> Manganese 1.26 mg/L 0,001 E200.7 10/20/17 06:51/elt-b <br /> Molybdenum 267 mg/L 0.001 E200.8 10/28/17 05:09/eli-b <br /> Uranium 17.1 mg/L 0.0003 E200.8 11/09/17 15:40/eli-b <br /> RADIONUCLIDES,TOTAL <br /> Radium 226 201 pCUL E903 0 11/07/17 11:32/arh <br /> Radium 226 precision(±) 37.7 pCUL E903.0 11/07/17 11:32/arh <br /> Radium 226 MDC 0.1 pCUL E903.0 11/07/17 11:321 arh <br /> Radium 228 1 pCi/L U RA-05 11/08/17 18:16/trs <br /> Radium 228 precision(±) 1.2 pCi/L RA-05 11/08/17 18:16/trs <br /> Radium 228 MDC 18 pCi/L RA-05 11/08/17 18:16/its <br /> Radium 226+Radium 228 202 pCi/L A7500-RA 11/10/17 17:37/sec <br /> Radium 226+Radium 228 precision(t) 37.7 pCi/L A7500-RA 11/10/17 17.37/sec <br /> Radium 226+Radium 228 MDC 1.8 pCi/L A7500-RA 11/10/17 17:37/sec <br /> CLIENT PROVIDED FIELD PARAMETERS <br /> Field Conductivity 4353 umhos/cm FIELD 10/11/17 12:25/ <br /> Field pH 7.1 s.u. FIELD 10/11/17 12:25/ <br /> Field Temperature,C 15.1 °C FIELD 10/11/17 12:25/'"" <br /> Oxidation-Reduction Potential(ORP) 113.1 mV FIELD 10/11/17 12:25/ <br /> Field data provided by client <br /> Report RL-Analyte reporting limit. MCL-Maximum contaminant level. <br /> Definitions: QCL-Quality control limit. NO-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration D-RL increased due to sample matrix. <br /> U-Not detected at minimum detectable concentration <br /> Page 5 of 32 <br />