DRC-2023-070446 - 0901a0688125c2a2

etNERGYFUELS
VIA EMAIL AND OVERNIGHT DELIVERY
August 15 , 2023
Mr. Bryce C. Bird
Division Director
Utah Department of Environmental Quality
Air Quality Division
195 North 1950 West
Salt Lake City, Utah 84116
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www .energyfuels.com
Div of Waste I\Jlanagement
and Rad.ation Control
AUG 1 8 2023
Re: Energy Fuels Resources (USA) Inc. Notification of NESHAPs Radon Flux Measurements for
Tailings lmpoundment 3 at the White Mesa Mill
Dear Mr. Bird:
Energy Fuels Resources (USA) Inc. ("EFRI") plans to perform a sampling event for ESHAPs Radon
Flux measurements for the second half of 2023 at Tailings Impoundment 3 at the White Mesa Mill from
September 26, 2023 through September 28, 2023. Per 40 CFR 61.253, EFRI is permitted to monitor
Radon Flux one or more times per year. EFRI is sampling Tailings Impoundment 3 on a semi-annual
frequency in 2023 .
Tellco Environmental of Grand Junction, Colorado ("Tellco") will perform approximately 100
measurements on the beach and cover area of Tailings lmpoundment 3 during the sampling event. These
measurements will be performed in accordance with methods and procedures set forth in 40 CFR Part 61 ,
Appendix B, Method 115 . Provided that there are no rainouts or events that require remobilization or a
delay in measurement, the sampling event for Tailings Impoundment 3 is expected to conclude on
September 28, 2023.
EFRI will provide safety and radiological orientation for any Utah Department of Air Quality personnel
observing this event. This orientation will be required before any individual enters the Mill Restricted
Area. Individuals monitoring this event should bring their own mandatory Personnel Protective
Equipment as required at the Mill, specifically, safety glasses, hardhats, and steel-toed shoes.
lfyou have any questions or require assistance, please contact me at 303-389-4134; or Mr. Garrin Palmer,
at 43 5-678-4114.
Yours very truly,
°1ftldtfJtr~
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Director, Regulatory Compliance
cc: Phil Goble, Utah Division Waste Management and Radiation Control
Director, Air and Toxics Technical Enforcement Program, U.S. Environmental Protection Agency
D. Frydenlund, L. Shumway, S. Bakken, G. Palmer (EFRI)
DRC-2023-070446