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Trust our People.Trust our Data. rt Billings,MT 800.735.4489•Casper,WY 881.235.9515 <br /> www energylab eom _ _' Gillette.WY 886.686.7175•Helena,MT 877.472.0711 <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 10:25 <br /> Lab ID: C20061176-005 DateReceived: 06/26/20 <br /> Client Sample ID: Rajah Matrix: Aqueous <br /> MCU <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> MAJOR IONS <br /> Alkalinity,Total as CaCO3 363 mg/L 5 A2320 B 06/29/20 16:24/dmb <br /> Bicarbonate as HCO3 409 mg/L 5 A2320 B 06/29/20 16:24/dmb <br /> Chloride 22 mg/L 1 E300.0 06/30/20 04.07/dmb <br /> Fluoride 0.3 mg/L 0.1 A4500-F C 07/02/20 11.10/dmb <br /> Sulfate 84 mg/L 1 E300.0 07/02/20 16:41 /dmb <br /> Calcium 7 mg/L 1 E200.7 06/30/20 23:51 /jcg <br /> Magnesium 3 mg/L 1 E200.7 06/30/20 23.51 /jcg <br /> Potassium 6 mg/L 1 E200.7 06/30/20 23:51 /jcg <br /> Sodium 223 mg/L 1 E200 7 07/06/20 12:41 /jcg <br /> INORGANICS <br /> Sulfide ND mg/L 0.04 A4500-S D 06/26/20 14:34/hat <br /> Sulfide as Hydrogen Sulfide(1-12S) ND mg/L 0.04 A4500-S D 06/26/20 14:34/hat <br /> PHYSICAL PROPERTIES <br /> pH 8.76 s.u. H 0.01 A4500-H B 06/29/20 11.53/kjp <br /> pH Measurement Temp 10 °C A4500-H B 06/29/20 11.53/kjp <br /> Solids,Total Dissolved TDS @ 180 C 577 mg/L 10 A2540 C 06/29/20 16:39/kjp <br /> Solids,Total Suspended TSS @ 105 C ND mg/L 1 A2540 D 06/26/20 14.45/kjp <br /> NUTRIENTS <br /> Nitrogen, Nitrate as N 061 mg/L 0.01 E353.2 07/09/20 09:45/atd <br /> Nitrogen, Nitrite as N ND mg/L H 0.01 A4500-NO2 B 06/26/20 15:14/hat <br /> Nitrogen, Nitrate+Nitrite as N 0.61 mg/L 0.01 E353.2 06/29/20 11:54/hat <br /> Phosphorus,Total as P 0.130 mg/L 0.005 E365.1 07/01/20 14:02/dmb <br /> -H-sample was analyzed beyond recommended hold time due to receiving it with insufficient hold time remaining. <br /> METALS, DISSOLVED <br /> Arsenic 2.48 mg/L 0.001 E200.8 07/07/20 19.21 /meh <br /> Barium ND mg/L 0.05 E200.7 06/30/20 23:51 /jcg <br /> Beryllium ND mg/L 0.001 E200 7 06/30/20 23:51 /jcg <br /> Boron 0.14 mg/L 0.05 E200.7 06/30/20 23:51 /jcg <br /> Cadmium ND mg/L 0.001 E200.8 07/07/20 19.21 /meh <br /> Chromium ND mg/L 0.005 E200.8 07/07/20 19:21 /meh <br /> Lead ND mg/L 0.001 E200.8 07/07/20 19:21 /meh <br /> Manganese ND mg/L 0.001 E200.8 07/07/20 19:21 /meh <br /> Molybdenum 0.245 mg/L 0 001 E200.8 07/07/20 19:21 /meh <br /> Nickel ND mg/L 0.005 E200.8 07/07/20 19:21 /meh <br /> Selenium 0.217 mg/L 0.001 E200.8 07/07/20 19:21 /meh <br /> Uranium 1.97 mg/L D 0.0005 E200.8 07/09/20 03:55/meh <br /> Vanadium 0.36 mg/L 0.01 E200.8 07/07/20 19:21 /meh <br /> Zinc ND mg/L 0.01 E200.8 07/07/20 19:21 /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 /> D-Reporting Limit(RL)increased due to sample matrix H-Analysis performed past the method holding time <br /> Page 11 of 30 <br />