DRC-2019-002022 - 0901a068809d43b1

DRC-2019-002022 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
Alan Matheson Executive Director DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL Rusty Lundberg Acting Director
March 5, 2019
Kathy Weinel, Quality Assurance Manager
Energy Fuels Resources (USA) Inc. 225 Union Blvd., Suite 600 Lakewood, CO 80228
RE: Energy Fuels Resources (USA) Inc. December 5, 2018, Transmittal of Plan and Time Schedule
Groundwater Discharge Permit No. UGW370004 (Permit) Dear Ms. Weinel:
The Division of Waste Management and Radiation Control (DWMRC) has reviewed the Energy Fuels
Resources (EFR) December 5, 2018 Transmittal of Plan and Time Schedule under Utah Ground Water
Discharge Permit UGW370004 Part I.G.4I White Mesa Mill (EFR Plan). The EFR Plan addresses exceedances of the Ground Water Compliance Limit (GWCL) for thallium in monitoring well MW-24. Monitoring Well MW-24 is in out-of-compliance status for thallium per the Permit Part I.G.2. Thallium
is therefore required to undergo corrective action per the Permit Part I.G.4.
The EFR Plan additionally addresses cadmium and field pH in monitoring well MW-24 which have recently exceeded their respective recalculated GWCL’s (single exceedance). Although the GWCL’s for cadmium and field pH have only a single exceedance since the Groundwater Permit Renewal
(January 19, 2018), cadmium and field pH are included in the EFR Plan based on the recent observed
exceedance and apparent data trends. A Source Assessment Report which will include a more specific source investigation and statistical analysis, as discussed in the EFR Plan Section 4, will be submitted to the Director within 90 days after approval of the EFR Plan.
Based on review of the EFR Plan it appears that the planned activities are appropriate, therefore, the EFR Plan is hereby approved. (Over)

If you have any questions, please call Tom Rushing at [phone].
Sincerely,

Rusty Lundberg, Acting Director Division of Waste Management and Radiation Control RL/TR/kb

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