HomeMy WebLinkAboutDRC-2011-002861 - 0901a068802120a7State ofUtah
GARY R. HERBERT
Governor
GREG BELL
Lieutenant Governor
Department of
Environmental Quality
Amanda Smith
Executive Director
DIVISION OF RADIATION CONTROL
Rusty Lundberg
Director
March 15, 2011
Ms. Jo Ann Tischler
Director, Compliance and Permitting
Denison Mines (USA) Coip. (DUSA)
1050 17* Street, Suite 950
Denver, CO 80265
Dear Ms. Tischler:
SUBJECT: Close-out of Freeboard Exceedance Issues for Cell 4A
White Mesa Uranium Mill, Blanding, Utah
References: '
1. DRC letter dated January 13, 2010 [actually 2011] granted interim variance through March 1, 2011
to freeboard requirements for the subject tailings Cell 4A.
2. DUSA email notices and letters individually dated January 13, 14, 15, 16 and 17, 2011 regarding
freeboard issues at Cell 4A. /
3. DRC letters dated January 20, 26, 26, and 27, 2011 respectively, contingently approved the new
DMT Plan that eliminates the freeboard requirements for Cell 4A (upon authorization for use of
Cell 4B), approved the as-built report for Cell 4B, approved the operational and maintenance
procedures for Cell 4A and Cell 4B (the O&M Plan), and authorized Cell 4B to operate. These
requirements were referred to in reference 1 above.
4. DUSA Radioactive Materials License Condition 10.3.B and 10.3.C.
Upon authorization of the use of tailings Cell 4B and approval of the DMT and Cell 4A and 4B O&M
Plans per reference 3, the License Conditions of reference 4 effectively eliminated the former freeboard
elevation requirements for tailings Cell 4A, and resolved previous freeboard exceedance issue problems as
discussed in references 1 and 2. Therefore, former issues regarding the subject freeboard exceedances for
tailings Cell 4A are hereby closed-out.
If you have any questions on this issue, please contact Mr. David Rupp of my staff.
UTAH WATER QUALITY BOARD
Rusty Lundberg
Co-Executive Secretary
F;\drupp\DUSA\ResoIution of Freeboard Issues C4A
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144850 • Salt Lake City, UT 84114-4850
Telephone (801) 536-4250 • Fax (801) 533-4097 • T.D.D. (801) 536-4414
www.deq.utah.gov
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