DRC-2023-068888 - 0901a06881244bc0

DRC-2023-068888 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144880 • Salt Lake City, UT 84114-4880 Telephone [phone] • Fax [phone] • T.D.D. 711 www.deq.utah.gov Printed on 100% recycled paper
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor
Department of Environmental Quality
Kimberly D. Shelley Executive Director DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Douglas J. Hansen Director August 4, 2023

Kathy Weinel, Quality Assurance Manager Energy Fuels Resources (USA) Inc.
225 Union Blvd., Suite 6500
Lakewood, CO 80228 RE: Review of the 1st Quarter 2023 (January to March) DMT Performance Standards Monitoring Report and Cell 4A and 4B BAT Performance Standards Monitoring Report
Groundwater Discharge Permit UGW370004 and Radioactive Materials License UT 1900479,
Amendment 10 Energy Fuels Resources, Inc. (EFR), White Mesa Mill, Blanding, Utah Dear Ms. Weinel:

The Division of Waste Management and Radiation Control (Division) has completed its review of
DMT Performance Standards Monitoring Report and Cell 4A and 4B BAT Performance Standards Monitoring Report (DRC-2023-004032) for the 1st Quarter of 2023, dated April 27, 2023, received on May 4, 2023. The Division hereby approves the submission.

As discussed on July 27, 2023, the Division is requesting two changes to subsequent reports of this type: 1. Add inspection information for the hydrochloric acid tanks and their containment structures to the report. This information should be similar to those inspection items that are evaluated yearly,
such as the oil decontamination pads, used oil and fuel tanks, and the ammonium sulfate pads.
Please note when the inspection most recently occurred and when it will occur in the future. Finally, the annual inspection for these occurs in the second quarter, so this 1st quarter report does not need to be resubmitted.
2. Add the elevation of the piezometric contour lines to the piezometric surface maps in
Appendix C. The current submission does not need to be updated. (Over)

If you have any questions, please call Heather Mickelson at 385-499-4875.
Sincerely,

Phil Goble, Uranium Mills and Radioactive Materials Manager Division of Waste Management and Radiation Control PRG/HLM/jk

c: Grant Sunada, Health Director, San Juan Public Health Department Ronnie Nieves, Environmental Health Director, San Juan Public Health Department Russell Seeley, District Engineer, UDEQ Logan Shumway, Mill Manager, Energy Fuels Resources (Email)
Scott Bakken, Energy Fuels Resources (Email)