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�ry Trust our People.Trust our Data. f Billings,MT 800.735.4489•Casper,WY 888.235.0515 <br /> ' www eneftaylab Umi Gillette,WY 866.686.7175• Helena,MT 877.472.0711 <br /> QA/QC Summary Report <br /> ' Prepared by Casper, WY Branch <br /> Client: Energy Fuels Resources (USA) Inc Work Order: C21070652 Report Date: 07/27/21 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qua] <br /> Method: A2320 B Analytical Run: MANTECH_210717A <br /> Lab ID: ICV Initial Calibration Verification Standard 07/17/21 10:01 <br /> pH 6.84 s.u. 0.010 100 98 102 <br /> Method: A2320 B Batch: R272541 <br /> Lab ID: MBLK Method Blank Run: MANTECH_210717A 07/17/21 12:47 <br /> Alkalinity,Total as CaCO3 ND mg/L 5 <br /> Lab ID: LCS Laboratory Control Sample Run: MANTECH_210717A 07/17/21 12:56 <br /> Alkalinity,Total as CaCO3 251 mg/L 5.0 100 90 110 <br /> ' Lab ID: C21070652-005ADUP Sample Duplicate Run: MANTECH_210717A 07/17/21 14:33 <br /> Alkalinity,Total as CaCO3 355 mg/L 5.0 0.0 10 <br /> Qualifiers: <br /> RL-Analyte Reporting Limit ND-Not detected at the Reporting Limit(RL) <br /> Page 13 of 31 <br />