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Trust our People.Trust our Data. Billings,MT800.735.4489•Casper,WY 888.235.0515 <br /> 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: 03/26/18 <br /> Project: Schwartzwalder Mine Collection Date: 02/13/18 11:20 <br /> Lab ID: C18020442-001 DateReceived: 02/16/18 <br /> Client Sample ID: SW-AWD Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Fluoride 03 mg/L 0.1 A4500-F C 02/20/18 12.42/mvr <br /> INORGANICS <br /> Cyanide,Weak Acid Dissociable ND mg/L 0.005 Kelada-01 02/22/18 10:18/eli-b <br /> NUTRIENTS <br /> Nitrogen,Nitrate+Nitrite as N 0.01 mg/L 0.01 E353.2 02/26/18 15:39/dmb <br /> Phosphorous,Total as Phosphate ND mg/L 0.03 Calculation 03/16/18 11:27/sec <br /> Phosphorus,Total as P ND mg/L 0.005 E365.1 02/27/18 11:07/dmb <br /> METALS, DISSOLVED <br /> Aluminum ND mg/L 02 E200.7 02/26/18 12:31/eli-b <br /> Antimony ND mg/L 0.001 E200 8 02/26/18 16-47/eli-b <br /> Molybdenum ND mg/L 0.005 E200 8 02/26/18 16:47/eli-b <br /> Thallium ND mg/L 00002 E200 8 02/26/18 16.47/eli-b <br /> Uranium 0.0027 mg/L 00002 E200 8 02/26/18 16.47/eli-b <br /> METALS,TOTAL <br /> Aluminum ND mg/L 02 E200 7 02/23/18 01.49/eli-b <br /> Antimony ND mg/L 0 001 E200.8 02/23/18 06.07/eli-b <br /> Arsenic ND mg/L 0.001 E200 8 02/23/18 06 07/eli-b <br /> Boron ND mg/L 01 E200.7 02/23/18 01.49/eli-b <br /> Mercury ND mg/L 0.0001 E245 1 03/02/18 15.13/eli-b <br /> Molybdenum ND mg/L 0.005 E200 7 02/23/18 01.49/eli-b <br /> Thallium ND mg/L 0.0002 E200 8 02/23/18 06 07/eli-b <br /> Uranium 00026 mg/L 0.0002 E200.8 02/23/18 06.07/eli-b <br /> RADIONUCLIDES, DISSOLVED <br /> Radium 226 01 pCi/L U E903.0 03/05/18 14:33/arh <br /> Radium 226 precision(±) 0.1 pCi/L E903.0 03/05/18 14.33/arh <br /> Radium 226 MDC 02 pCi/L E903.0 03/05/18 14:33/arh <br /> RADIONUCLIDES,TOTAL <br /> Gross Alpha 3.6 pCi/L E900.0 02/22/18 23-32/trs <br /> Gross Alpha precision(±) 1.7 pCi/L E900.0 02/22/18 23 32/trs <br /> Gross Alpha MDC 1.6 pCi/L E900.0 02/22/18 23-32/trs <br /> Gross Beta -0.9 pCi/L U E900.0 02/22/18 23:32/trs <br /> Gross Beta precision(±) 2.2 pCi/L E900.0 02/22/18 23:32/trs <br /> Gross Beta MDC 3.7 pCi/L E900 0 02/22/18 23 32/trs <br /> Radium 226 0.2 pCi/L E903.0 03/19/18 10-09/arh <br /> Radium 226 precision(±) 0.1 pCi/L E903 0 03/19/18 10:09/arh <br /> Radium 226 MDC 0.1 pCi/L E903 0 03/19/18 10:09/arh <br /> Radium 228 07 pCi/L U RA-05 03/23/18 10:39/plj <br /> Radium 228 precision(±) 0.7 pCi/L RA-05 03/23/18 10:39/plj <br /> Radium 228 MDC 12 pCi/L RA-05 03/23/18 10:39/plj <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 U-Not detected at minimum detectable concentration <br /> Page 4 of 40 <br />