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ENERGY Trust our People Trust our Data Billings,MT 406.252.6325•Casper,WY 307.235.0515 <br /> LA�JRP:ro.< as Gillette WY 307.686.7175• Helena MT 406.442.0711 <br /> LABORATORY ANALYTICAL REPORT <br /> Prepared by Casper,WY Branch <br /> Client: Energy Fuels Resources(USA) Inc Report Date: 10/01/24 <br /> Project: Whirlwind Annual Collection Date: 09/11/24 09 52 <br /> Lab ID: C24090489-002 DateReceived: 09/12/24 <br /> Client Sample ID: PR Spring Matrix: Aqueous <br /> MCL/ <br /> Analyses Result Units Qualifiers RL QCL Method Analysis Date/By <br /> DATA QUALITY <br /> A/C Balance -0 29 % A1030 E 09/30/24 12 05/dmb <br /> Anions 9 02 meq/L A1030 E 09/30/24 12 05/dmb <br /> Cations 8 97 meq/L A1030 E 09/30/24 12 05/dmb <br /> RADIONUCLIDES,TOTAL <br /> Radium 226 3 5 pCi/L E903.0 09/30/24 12 16/apt <br /> Radium 226 precision(±) 0 7 pCi/L E903 0 09/30/24 12 16/apt <br /> Radium 226 MDC 0 1 pCi/L E903 0 09/30/24 12 16/apt <br /> Radium 228 0 03 pCi/L U RA-05 09/24/24 14 57/trs <br /> Radium 228 precision(±) 0 7 pCi/L RA-05 09/24/24 14 57/trs <br /> Radium 228 MDC 1 2 pCi/L RA-05 09/24/24 14 57/trs <br /> Radium 226+Radium 228 4 2 pCi/L A7500-RA 10/01/24 12 11 /dmf <br /> Radium 226+Radium 228 precision(±) 1 0 pCi/L A7500-RA 10/01/24 12 11 /dmf <br /> Radium 226+Radium 228 MDC 1 2 pCi/L A7500-RA 10/01/24 12 11 /dmf <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 /> U-Not detected at Minimum Detectable Concentration <br /> (MDC) <br /> Page 7 of 34 <br />