DRC-2021-013962 - 0901a06880f611e7

DRC-2021-013962 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. [phone]
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 September 29, 2021
Kathy Weinel, Quality Assurance Manager Energy Fuels Resources (USA), Inc.
225 Union Blvd., Suite 600
Lakewood, CO 80228 RE: The 2021 Annual Tailings System Wastewater Monitoring Event, Closeout Letter Ground Water Quality Discharge Permit Number UGW370004
Dear Ms. Weinel: On September 1, 2021, the Division of Waste Management and Radiation Control (“Division”) completed the field inspection of the 2021 Annual Tailings System Wastewater Monitoring Event by
Energy Fuels Resources (USA) Inc. (“EFR”). This inspection also included the collection of a split-
sample by the Division of tailings wastewater in the Tailings Cell 2 Slimes Drain. The inspection was based on compliance with the: 1. White Mesa Uranium Mill Ground Water Quality Assurance Plan (“QAP”). Revision 7.4,
dated July 23, 2018. 2. Ground Water Quality Discharge Permit Number UGW370004 (“Permit”), dated March 19, 2019. 3. Tailings and slimes Drain Sampling Program (“Sampling Plan”) Revision 3.0 dated July 8, 2016.
The findings of this inspection and results of the analytical analysis for the Division split sample of the
wastewater in Cell 2 Slimes Drain will also be included as part of the review to complete the inspection for the Annual Tailings System Wastewater Monitoring Report due December 1, 2021. Based on Division staff observation of EFR staff performing the sampling and monitoring on September 1, 2021, it appears that EFR staff is in compliance with field sampling requirements in the
Permit, QAP and Sampling Plan. This letter constitutes a closeout of the September 1, 2021, Annual Tailings System Wastewater Monitoring Event. (Over)

If you have any questions, please contact Dean Henderson at [phone].

Sincerely, Phil Goble, Uranium Mills and Radioactive Materials Manager
Division of Waste Management and Radiation Control PRG/DCH/as
c: Mike Moulton, Interim Health Officer, San Juan County Public Health Department
Ronnie Nieves, Environmental Health Director, San Juan County Public Health Department Russell Seeley, UDEQ District Engineer