DRC-2020-003743 - 0901a06880bfb29b

DRC-2020-003743 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
GARY R. HERBERT Governor SPENCER J. COX
Lieutenant Governor
Department of
Environmental Quality
L. Scott Baird Executive Director DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Ty L. Howard Director
February 24, 2020 Kathy Weinel, Quality Assurance Manager
Energy Fuels Resources (USA) Inc.
225 Union Blvd., Suite 600 Lakewood, CO 80228 RE: Energy Fuels Resources, White Mesa Uranium Mill January 31, 2020 Request to Return Certain
Groundwater Monitoring Parameters to Baseline Monitoring Frequency.
Utah Groundwater Discharge Permit No. UGW370004 Dear Ms. Weinel:
The Utah Division of Waste Management and Radiation Control (DWMRC) has completed review of
the Energy Fuels Resources (USA) Inc. (EFR), January 31, 2020, State of Utah Ground Water
Discharge Permit No. UGW370004 White Mesa Uranium Mill – Removal of Certain Groundwater Monitoring Parameters from Accelerated Monitoring Status.
Based on review of the EFR January 31, 2020 request, EFR requests that certain monitoring well
parameters be returned to baseline monitoring as listed on the table below:
Monitoring Well Parameter Number of Consecutive Sample Results Below the GWCL
Baseline Monitoring Frequency
MW-30 Field pH 8 Quarterly
MW-36 Field pH 9 Quarterly
MW-25 Cadmium 9 Quarterly
MW-26 Nitrogen, Ammonia as N 9 Quarterly
It was noted that the above monitoring well parameters have had sample results below the Permitted Ground Water Compliance Limits (GWCLs) for the most recent eight consecutive accelerated sampling events or more. Per past DWMRC protocols, accelerated monitoring may be discontinued if at least
eight consecutive samples show concentrations below the GWCL. Therefore, the request to return to
baseline monitoring for the wells/parameters on the table above is hereby approved. (Over)
If you have any questions, please call Tom Rushing at [phone].
Sincerely,

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

c: Kirk Benge, Health Officer, San Juan Public Health Department Rick Meyer, Environmental Health Director, San Juan Public Health Department Scott Hacking, P.E., DEQ District Engineer