DRC-2023-068254 - 0901a0688123bf54

VIA PDF AND EXPRESS DELIVERY
July 12, 2023
Mr. Doug Hansen
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84114-4820
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www .energyfuels.com
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Re: White Mesa Mill Annual Tailings Management System Sampling -Notice Pursuant to Utah
Groundwater Discharge Permit UGW370004.
Dear Mr. Hansen:
Energy Fuels Resources (USA) Inc. is providing this letter to notify the Division of Waste Management and
Radiation Control ("DWMRC") of the White Mesa Mill's tailing solution, slimes drain, and leak detection
system ("LOS") sampling as required by the Utah Groundwater Discharge Permit (the "GWDP") UGW370004.
The sampling event is scheduled for Tuesday, August 29, 2023 and, if necessary, Wednesday, August 30, 2023.
The Mill staff plan to sample consistent with the GWDP and the DWMRC-approved Sampling and Analysis
Plan ("SAP").
If you have any questions or require further assistance, please contact Kathy Weinel at 303-389-4134 or Tanner
Holliday at 435-678-4115 .
Yours very truly,
r(~>v~
Kathy Weinel
Director, Regulatory Compliance
ENERGY FUELS RESOURCES (USA) INC.
cc: Logan Shumway
David Frydenlund
Scott Bakken
Terry Slade
Garrin Palmer
Jordan App
DRC-2023-068254