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• True as People.Trust our Data- Billings, MT 8011,735.4488 * Casper. WY 888.235.0515 <br />T www energylab.rom Gillette, WY 866.686.7175. Helena, MT 877.472.0711 <br />LABORATORY ANALYTICAL REPORT <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation ReportDate: 12/01117 <br />Project: Schwartzwalder Mine Collection Date: 11/01/1712-25 <br />Lab ID: C17110113-002 DateReceived: 11/03/17 <br />Client Sample ID: MW -18 Matrix: Aqueous <br />Analyses <br />MCL! <br />Result Units Qualifiers RL QCL Method Analysis Date ! By <br />NUTRIENTS <br />E353.2 <br />Nitrogen, Nitrate+Nitrite as N <br />ND mglL <br />Phosphorus, Total as P <br />0 009 my1L <br />METALS, DISSOLVED <br />E200.7 <br />Aluminum <br />ND mg1L <br />Antimony <br />ND mglL <br />Molybdenum <br />0.072 mglL <br />Thallium <br />ND mglL <br />Uranium <br />0.311 mglL <br />METALS, TOTAL <br />E200,8 <br />Aluminum <br />ND mglL <br />Antimony <br />ND mglL <br />Arsenic <br />0.003 mg1L <br />Mercury <br />ND mglL <br />Thallium <br />ND mg1L <br />RADIONUCLIDES, DISSOLVED <br />E245.1 <br />Radium 226 <br />3.4 pCi1L <br />Radium 226 precision <br />07 pCi1L <br />Radium 226 MDC <br />02 pCi1L <br />RADIONUCLIDES, TOTAL <br />Gross Alpha <br />319 pCi1L <br />Gross Alpha precision 1t) <br />630 pCi/L <br />Gross Alpha MDC <br />45 pCi1L <br />Gross Beta <br />577 pCi1L <br />Gross Beta precision (f) <br />68 pCi1L <br />Gross Beta MDC <br />64 pCUL <br />CLIENT PROVIDED FIELD PARAMETERS <br />11/10/17 03 051 cnh <br />Depth to Water <br />1363 feet <br />Field Conductivity <br />1483 umhoslem <br />Field pH <br />7.46 s u. <br />Field Temperature, C <br />11.7 C <br />Flow <br />0.1 gpm <br />"` Field data provided by cling <br />11/01/17 12 25 1 <br />0.01 <br />E353.2 <br />11/0911716:0211j1 <br />0.005 <br />E365,1 <br />11/09117 10.34 1 lil <br />0.2 <br />E200.7 <br />1110911704-541eli-b <br />0.001 <br />E200,8 <br />11/13/17 18 171 eli-b <br />0.005 <br />E200,8 <br />11/13/17 18 171 ell -b <br />0.0002 <br />E200.8 <br />11/13/17 18 171 eii-b <br />0.0002 <br />E200,8 <br />11/13/17 18 171 eii-b <br />0.2 <br />E200.7 <br />11/10/17 04 021 ell -b <br />0.001 <br />E200.8 <br />I VD9117 20 D i 1 eii-b <br />0.001 <br />E200.8 <br />11/09/17 20 011 ell -b <br />0.0001 <br />E245.1 <br />11/08/17 14 411 ell -b <br />0.0002 <br />E200.s <br />11/14/17 02 04 1 eii-b <br />E903.0 <br />11/13/17 11:201 arh <br />E903.0 <br />11/13/17 11:201 arh <br />E903.a <br />11/13/17 11:201 arh <br />E900,0 <br />11110/17 03 051 cnh <br />E900.0 <br />11110/17 03 051 cnh <br />E900.0 <br />11/10/17 03 051 cnh <br />E900,0 <br />11/10/17 03 051 cnh <br />E900 0 <br />11110/17 03 051 cnh <br />E900 0 <br />11/10/17 03 051 cnh <br />FIELD <br />11/01/17 12 25 1 <br />FIELD <br />11/01/17 12 25 1 <br />FIELD <br />11/01/17 12 25 1 <br />FIELD <br />11/01/17 12 25 1 <br />FIELD <br />11/01/17 12 25 1 <br />Report RL - Analyte reporting limit- MCL - Maximum contaminant level. <br />Definitions: OCL - Quality control limit. ND - Not detected at the reporting limit. <br />MDC - Minimum delectable concentration <br />Page 4 of 30 <br />