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Trust our People.Trust our Data. Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> E Gillette,WY 866.686.7175•Helena,MT 877.472.0711 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Cotter Corporation Report Date: 03/02/18 <br /> Project: Schwartzwalder Mine Collection Date: 01/25/18 13:42 <br /> Lab ID: C18020046-002 DateReceived: 02/05/18 <br /> Client Sample ID: MW-1 Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date I By <br /> NUTRIENTS <br /> Nitrogen,Nitrate+Nitrite as N 0.69 mg/L 0.01 E353 2 02/07/18 11 16/dmb <br /> Phosphorus,Total as P 0 008 mg/L 0.005 E365 1 02/09/18 10:17/dmb <br /> METALS, DISSOLVED <br /> Aluminum ND mg/L 0.2 E200 8 02/07/18 19.33/eli-b <br /> Antimony ND mg/L 0 001 E200 8 02/07/18 19 33/eli-b <br /> Molybdenum 0 017 mg/L 0.005 E200 8 02/07/18 19.33/eli-b <br /> Thallium ND mg/L 0.0002 E200 8 02/07/18 19.33/eli-b <br /> Uranium 0.918 mg/L 00002 E200 8 02/08/18 13 16/eli-b <br /> METALS,TOTAL <br /> Aluminum ND mg/L 02 E200.7 02/08/18 15-32/eli-b <br /> Antimony ND mg/L 0.001 E200 8 02/08/18 16.47/eli-b <br /> Arsenic ND mg/L 0 001 E200 8 02/08/18 16-47/eli-b <br /> Mercury ND mg/L 00001 E245.1 02/09/18 14-36/eli-b <br /> Thallium ND mg/L 00002 E200 8 02/08/18 16:47/eli-b <br /> RADIONUCLIDES,DISSOLVED <br /> Radium 226 06 pCi/L E903 0 02/14/18 15.51 /arh <br /> Radium 226 precision(±) 0.2 pCi/L E903 0 02/14/18 15-51 /arh <br /> Radium 226 MDC 0.2 pCi/L E903.0 02/14/18 15-51 /arh <br /> RADIONUCLIDES,TOTAL <br /> Gross Alpha 2010 pCi/L E900.0 02/21/18 22 36/trs <br /> Gross Alpha precision(±) 391 pCi/L E900.0 02/21/18 22.36/trs <br /> Gross Alpha MDC 6.5 pCi/L E900 0 02/21/18 22.36/trs <br /> Gross Beta 507 pCi/L E900.0 02/21/18 22.36/trs <br /> Gross Beta precision(±) 51.9 pCi/L E900.0 02/21/18 22.36/trs <br /> Gross Beta MDC 78 pCi/L E900.0 02/21/18 22.36/trs <br /> CLIENT PROVIDED FIELD PARAMETERS <br /> Depth to Water 16.6 feet FIELD 01/25/18 13:42/*** <br /> Field Conductivity 705 umhos/cm FIELD 01/25/18 13:42/*" <br /> Field pH 700 s u. FIELD 01/25/18 13:42/*** <br /> Field Temperature,C 108 °C FIELD 01/25/18 13:42/*"* <br /> Flow 03 gpm FIELD 01/25/18 13:42/*'* <br /> Oxidation-Reduction Potential(ORP) 312 mV FIELD 01/25/18 13:42/*** <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 5 of 41 <br />