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d,,,►,,�,C�• Pace Analytical <br /> CeAIliI 1673 Terra Avenue Sheridan,WY 82801 ph:(307)672-8945 <br /> ANALYTICAL QC SUMMARY REPORT <br /> CLIENT: Energy Fuels Resources(USA) Inc. Date: 3/6/2023 <br /> Work Order: S2301346 Report ID: S2301346001 <br /> Project: Whirlwind <br /> Total Mercury in Soils Sample Type: MBLK Units: mg/Kg <br /> MB(02/10/23 12:43) RunNo:207930 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Mercury ND 0.2 <br /> MB(02/10123 12:47) RunNo-207930 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Mercury ND 0.2 <br /> Total Mercury in Soils Sample Type: LCS Units: mg/Kg <br /> LCS(02/10123 12:41) RunNo:207930 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Mercury 5.2 0.2 5 104 80-120 <br /> Total Mercury in Soils Sample Type: MS Units: mg/Kg <br /> S2301258-006AS(02/10/23 13:13) RunNo,207930 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Mercury 0.9 0.2 0.833 ND 105 80-120 H <br /> S2302003-003AS(02/10/23 13:56) RunNo:207930 <br /> Analyte Result RL Spike Ref Samp %REC %Rec Limits Qual <br /> Mercury 1.7 0.2 0.833 0.8 98.8 80-120 <br /> Total Mercury in Soils Sample Type: MSD Units: mg/Kg <br /> S2301258-006ASO(02/10/23 13:15) RunNo:207930 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Mercury 0.9 0.2 0.9 0.182 105 20 H <br /> S2302003-003ASD(02110/23 14:00) RunNo:207930 <br /> Analyte Result RL Conc %RPD %REC %RPD Limits Qual <br /> Mercury 1.7 0.2 1.7 0 98.8 20 <br /> Total Mercury in Soils Sample Type: DUP Units: mg/Kg <br /> S2301258-006AD(02/10/23 13:10) RunNo:207930 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Mercury ND 0.2 ND 20 H <br /> S2302003-003AD(02/10/23 13:54) RunNo:207930 <br /> Analyte Result RL Ref Samp %RPD %REC %RPD Limits Qual <br /> Mercury 0.8 0.2 0.8 1.74 20 <br /> Page 2 of 7 <br />