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ao'Dam Trust our People.Trust our Da ta. t s" Billings,MT800.735.4489•Casper,WY 888.235.0515 <br /> www.energylab.com Gillette,WY 866.686.7175•Helena,MT 877.472.0711 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Energy Fuels Resources (USA) Inc Report Date: 09/01/22 <br /> Project: Not Indicated Collection Date: 08/01/22 10:55 <br /> Lab ID: C22080249-004 DateReceived: 08/04/22 <br /> Client Sample ID: Rajah Spring Matrix: Aqueous <br /> MCLI <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date I By <br /> MAJOR IONS <br /> Alkalinity,Total as CaCO3 358 mg/L 5 A2320 B 08/05/22 15,55/slf <br /> Bicarbonate as HCO3 409 mg/L 6 A2320 B 08/05/22 15:55/slf <br /> Chloride 22 mg/L 1 E300.0 08/09/22 00.01 /dmb <br /> Fluoride 0.3 mg/L 0.1 A4500-F C 08/05/22 12:19/slf <br /> Sulfate 91 mg/L 1 E300.0 08/09/22 00:01 /dmb <br /> Calcium 7 mg/L 1 E200.7 08/12/22 18:44/eli-b <br /> Magnesium 3 mg/L 1 E200.7 08/12/22 18:44/eli-b <br /> Potassium 6 mg/L 1 E200.7 08/12/22 18:44/eli-b <br /> Sodium 209 mg/L 1 E200.7 08/12/22 18.44/eli-b <br /> INORGANICS <br /> Sulfide 1 mg/L 1 A4500-S F 08/05/22 14:39/erc <br /> Sulfide as Hydrogen Sulfide(H2S) 1 mg/L 1 A4500-S F 08/05/22 14:39/erc <br /> PHYSICAL PROPERTIES <br /> pH 8.7 s.u. H 0.1 A4500-H B 08/05/22 11:32/mnm <br /> pH Measurement Temp 18.6 °C A4500-H B 08/05/22 11:32/mnm <br /> Solids,Total Dissolved TDS @ 180 C 580 mg/L 20 A2540 C 08/05/22 12,33/slf <br /> Solids,Total Suspended TSS @ 105 C 6 mg/L 1 A2540 D 08/08/22 12:37/mnm <br /> NUTRIENTS <br /> Nitrogen, Nitrate as N 0.44 mg/L 0.05 E353.2 08/10/22 08:25/tlf <br /> Nitrogen,Nitrite as N ND mg/L H 0.01 A4500-NO2 B 08/05/22 14:12/erc <br /> Nitrogen,Nitrate+Nitrite as N 0.45 mg/L 0.05 E353.2 08/05/22 15:08/erc <br /> Phosphorus,Total as P 0.163 mg/L 0.005 E365.1 08/13/22 10:51 /dmb <br /> -H-sample was analyzed beyond recommended hold time due to receiving it with insufficient hold time remaining. <br /> METALS, DISSOLVED <br /> Arsenic 2.4 mg/L D 0.2 E200.7 08/12/22 18:44/eli-b <br /> Barium ND mg/L 0.05 E200.7 08/12/22 18:44/eli-b <br /> Beryllium ND mg/L 0.001 E200.8 08/18/22 13:43/eli-b <br /> Boron 0.15 mg/L 0,05 E200.7 08/12/22 18:44/eli-b <br /> Cadmium ND mg/L 0.001 E200.8 08/13/22 22:16/eli-b <br /> Chromium ND mg/L 0.005 E200.8 08/13/22 22:16/eli-b <br /> Lead ND mg/L 0.001 E200.8 08/13/22 22:16/eli-b <br /> Manganese 0.003 mg/L 0.001 E200.8 08/13/22 22:16/eli-b <br /> Molybdenum 0.221 mg/L 0.001 E200.8 08/13/22 22:16/eli-b <br /> Nickel ND mg/L 0.005 E200.8 08/13/22 22:16/eli-b <br /> Selenium 0.222 mg/L 0.001 E200.8 08/13/22 22:16/eli-b <br /> Uranium 2.05 mg/L 0.0003 E200.8 08/22/22 13:41/eli-b <br /> Vanadium 0.39 mg/L 0.01 E200.8 08/16/22 14:16/eli-b <br /> Zinc ND mg/L 0.01 E200.8 08/13/22 22:16/eli-b <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 9 of 32 <br />