DRC-2010-005041 - 0901a068801c331e

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David Turk
From: Jo Ann TischlerSent: Thursday, September O2,2O1O 7:05 PMTo: rlundberg @ utah.govCc: Harold Roberts; David Frydenlund; Kathy Weinel; David Turk; Meredith GobleSubject: Utah Ground Water Discharge Permit ('GWDP') No. UGW370004 RFI Regarding New
Decontamination PadAttachments: Denison 09.02.10 Response to UDEQ 05.10.10 RFI on New Decon Pad.pdf;Tailings Mgnt
System and DMT Mon Plan 08.03.10 Rv 10.1 clean.doc;Tailings Mgnt System and DMT Mon
Plan 08.03.10 Rv'10.1 redine.doc; Proposed Contingency Plan Rev 3 sent to DRC with decon
pad RFI repsonse letter clean.doc; Proposed Contingency Plan Rev 3 sent to DRC with decon
pad RFI repsonse letter redline.doc
Mr. Lundberg,
I have attached Denison Mines (USA) Corp's response to Utah DEQ s May 10, 2010 Request for lnformation regarding
the New Decontamination Pad at White Mesa Mill.
Attached to this email please find a pdf copy of our response and attachments, along with MS Word copies of redline
and clean blackline revisions of the Discharge Monitoring Technology Plan and Contingency Plan.
Two hard copies of the response and all attachments have also been submitted by express delivery.
Please contact me if you have any questions on this transmittal.
Yours truly,
Jo Ann Tischler
Jo Ann Tischler
Director, Compliance and Permitting
t: (303) 38e-4132 | f: (303)3Be-4125 DENISON MINES (USA) CORP
1O5O 17th Street, Suite 950, Denver, CO 80265 www.denisonmines.com
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DRC-2010-005041
DENISO
MINES
September 2, 2010
mhm of
Radiation Coiitrof
Denison Mines (USA) Corp.
10S017th Street Sulta 950
Denvisr, CO 8026S
USA
Tel [phone]
Fax: [phone]
www.denisonmlnes.com
VIA E-MAIL AND OVERNIGHT DELIVERY
Rusty Lundberg
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4820
Re: State of Utah Ground Water Discharge Permit ("GWDP") No. UGW370004
White Mesa Uranium Mill New Decontamination Pad and Proposed White Mesa Mill Tailings
Management System and Discharge Minimization Technology Monitoring Plan Response to Request
for Information ("RFI")
Dear Mr. Lundberg:
This letter responds to Utah Department of Environmental Quality's ("UDEQ's") Request for Information of May
10, 2010 regarding the New Decontamination Pad ("NDP"). Reference is also made to Denison Mines (USA)
Corp.'s ("Denison's") letters of February 4, 2009, November 16, 2009, March 12, 2010, and our August 4, 2010
submittal of Revision 10 of the Tailings Management System and Discharge Minimization Technology
Monitoring ("DMT") Plan and Revision 1.6 of the Cell 4A Operations and Maintenance ("O&M") Plan which are
currently pending UDEQ approval.
Based on the comments below, Denison has prepared Revision 10.1 to the DMT Plan which is provided as
Attachment 1 to this letter. This revision incorporates all the changes provided in the August 4, 2010 submittal
of Revision 10 (provided in redline format) plus all the additional changes requested In the UDEQ comments
below (provided in redline format and highlighted in yellow). All red-lined changes are relative to the approved
Revision 3.0. DMT Plan Revision 10.1 has also been provided in a clean version with all changes accepted.
Denison requests that UDEQ not review DMT Plan Revision 10.0, submitted on August 4, 2010, but review
DMT Plan Revision 10.1, attached to this letter, for approval.
Based on the comments below, Denison has also prepared Revision 3 of the Contingency Plan. All red-lined
changes are relative to the approved Revision 2.0. Contingency Plan Revision 3.0 has also been provided in a
clean version with all changes accepted.
The sections and numbering of this letter follow that of UDEQ's May 10, 2010 RFI.
shown in italics, below, followed by Denison's response.
Each UDEQ request is