DRC-2021-012230 - 0901a06880f3f91f

ENERGY FUELS
VIA EMAIL AND OVERNIGHT DELIVERY
August 26, 2021
Mr. Doug Hansen
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84116
Div of Waste Management
and Radiation Control
AuG 3 0 2021
Re: Energy Fuels Resources (USA) Inc. Sampling Notice for the Radon Flux Measurements for
Tailings Impoundment 2 at the White Mesa Mill
Dear Mr. Hansen:
Pursuant to the letter from the Utah Division of Waste Management and Radiation Control ("DWMRC")
dated, July 23, 2014, Energy Fuels Resources (USA) Inc. ("EFRI") is required to measure radon flux at
Tailings Impoundment 2 ("Cell 2") at the White Mesa Mill (the "Mill") semi-annually in accordance with
40 CFR 61, Appendix B, Method 115. EFRI is providing 30 days notice to DWMRC that the semi-annual
sampling event for the second half of 2021 for Cell 2 will be conducted at the Mill from September 28 -
29, 2021. The measured results will be included in the July through December 2021 Semi-Annual
Effluent Report, due March 1, 2022.
Tellco Environmental of Grand Junction, Colorado will perform approximately 100 measurements on the
cover area of Cell 2 during the sampling event. Provided that there are no rainouts or events that require
remobilization or a delay in measurement, the sampling event is expected to conclude on September 29,
2021.
EFRI will provide safety and radiological orientation for any DWMRC 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.
If you have any questions or require assistance, please contact me at 303-389-4134 or Mr. Garrin Palmer,
at 435-678-4114.
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc: D.Frydenlund, L. Shumway, T. Slade, S. Bakken, G. Palmer (EFRI)
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
Di3C-2.02.1- 012230 www.energyfuels.com
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228 303 974 2140
www.energyfuels.com ENERGVFUELS
VIA EMAIL AND EXPEDITED DELIVERY
August 26, 2021
Mr. Bryce C. Bird
Division Director
Utah Department of Environmental Quality
Air Quality Division
195 North 1950 West
Salt Lake City, Utah 84116
Div of '/Vase: Management and Rachation Control
AuG 3 ri 2021
Re: Energy Fuels Resources (USA) Inc. Notification of NESHAPs Radon Flux Measurements for
Tailings Impoundment 3 at the White Mesa Mill
Dear Mr. Bird:
Energy Fuels Resources (USA) Inc. ("EFRI") plans to perform a sampling event for NESHAPs Radon
Flux measurements for the second half of 2021 at Tailings Impoundment 3 at the White Mesa Mill from
September 28, 2021 through September 29, 2021. Per 40 CFR 61.253, EFRI is permitted to monitor
Radon Flux one or more times per year. Per the April 2021 notice, EFRI is sampling Tailings
Impoundment 3 on a semi-annual frequency in 2021.
Tellco Environmental of Grand Junction, Colorado ("Tellco") will perform approximately 100
measurements on the beach and cover area of Tailings Impoundment 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 29, 2021.
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.
If you have any questions or require assistance, please contact me at 303-389-4134; or Mr. Garrin Palmer,
at 435-678-4114.
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
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, T. Slade, S. Bakken, G. Palmer (EFRI)