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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 Printed on 100% recycled paper