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- p Trust our People.Trust our Data. Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> www e,ne,gyiab.com Gillette,WY 866.696.7175•Nelena,MT 877.472.0711 <br /> go <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Energy Fuels Resources(USA) Inc Report Date: 07/20/20 <br /> Project: Whirlwind Mine Collection Date: 06/24/20 08:25 <br /> Lab ID: C20061176-001 DateReceived: 06/26/20 <br /> Client Sample ID: DP Spring Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Alkalinity,Total as CaCO3 242 mg/L 5 A2320 B 06/29/20 15:54/dmb <br /> Bicarbonate as HCO3 296 mg/L 5 A2320 B 06/29/20 15:54/dmb <br /> Chloride 13 mg/L 1 E300.0 06/30/20 01:33/dmb <br /> Fluoride 0.3 mg/L 0.1 A4500-F C 07/02/20 10.55/dmb <br /> Sulfate 34 mg/L 1 E300.0 06/30/20 01.33/dmb <br /> Calcium 86 mg/L 1 E200.7 06/30/20 23:27/jcg <br /> Magnesium 9 mg/L 1 E200.7 06/30/20 23:27/jcg <br /> Potassium 1 mg/L 1 E200.7 06/30/20 23:27/jcg <br /> Sodium 18 mg/L 1 E200.7 06/30/20 23:27/jcg <br /> INORGANICS <br /> Sulfide ND mg/L 0.04 A4500-S D 06/26/20 14:33/hat <br /> Sulfide as Hydrogen Sulfide(H2S) ND mg/L 0.04 A4500-S D 06/26/20 14.33/hat <br /> PHYSICAL PROPERTIES <br /> pH 7.70 s u. H 0.01 A4500-H B 06/29/20 11:39/kjp <br /> pH Measurement Temp 9 °C A4500-H B 06/29/20 11:39/kjp <br /> Solids,Total Dissolved TDS @ 180 C 325 mg/L 10 A2540 C 06/29/20 16:37/kjp <br /> Solids,Total Suspended TSS @ 105 C 8 mg/L 1 A2540 D 06/26/20 14:45/kjp <br /> NUTRIENTS <br /> Nitrogen, Nitrate as N 0.26 mg/L 0.01 E353.2 07/09/20 09.45/atd <br /> Nitrogen, Nitrite as N ND mg/L H 001 A4500-NO2 B 06/26/20 15:14/hat <br /> Nitrogen, Nitrate+Nitrite as N 0.26 mg/L 001 E353.2 06/29/20 11:44/hat <br /> Phosphorus,Total as P 0.012 mg/L 0.005 E365A 07/01/20 13:55/dmb <br /> -H-sample was analyzed beyond recommended hold time due to receiving it with insufficient hold time remaining <br /> METALS, DISSOLVED <br /> Arsenic 0.005 mg/L 0.001 E200.8 07/07/20 18.34/meh <br /> Barium 009 mg/L 0.05 E200.7 06/30/20 23-27/jcg <br /> Beryllium ND mg/L 0.001 E200.7 06/30/20 23-27/jcg <br /> Boron ND mg/L 0.05 E200.7 06/30/20 23.27/jcg <br /> Cadmium ND mg/L 0.001 E200.8 07/07/20 18:34/meh <br /> Chromium ND mg/L 0.005 E200.8 07/07/20 18:34/meh <br /> Lead ND mg/L 0 001 E200.8 07/07/20 18:34/meh <br /> Manganese ND mg/L 0.001 E200 8 07/07/20 18:34/meh <br /> Molybdenum ND mg/L 0.001 E200.8 07/07/20 18:34/meh <br /> Nickel ND mg/L 0.005 E200.8 07/07/20 18:34/meh <br /> Selenium 0.002 mg/L 0.001 E200.8 07/07/20 18:34/meh <br /> Uranium 0.0014 mg/L 0.0003 E200.8 07/07/20 18:34/meh <br /> Vanadium ND mg/L 0.01 E200.8 07/07/20 18-34/meh <br /> Zinc ND mg/L 001 E200.8 07/07/20 18:34/meh <br /> Report RL-Analyte Reporting Limit MCL-Maximum Contaminant Level <br /> Definitions: QCL-Quality Control Limit ND-Not detected at the Reporting Limit(RL) <br /> H-Analysis performed past the method holding time <br /> Page 3 of 30 <br />