DRC-2011-007609 - 0901a0688028f7b6

DENISO
MINES
November 28, 2011
w u
Denison Mines (USA) Corp.
105017th Street, Suite 950
Denver, CO 80265
USA
Tel : [phone]
Fax:[phone]
www.denisonmlnes.com
VIA E-MAIL AND OVERNIGHT DELIVERY
Mr. Rusty Lundberg
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144850
Salt Lake City, UT 84114-4850
Re: Denison Mines (USA) Corp. ("Denson") Response to Utah Division of Radiation Control ("DRC")
Request for Additional Information to the March 17, 2010 Letter Report for the Installation and
Hydraulic testing of Perched Groundwater Monitoring Wells TW4-23, TW4-24 and TW4-25 at the
White Mesa Uranium Mill
Dear Mr. Lundberg:
This letter provides Denison Mines (USA) Corp's ("Denison's") response to the Utah Division of Radiation
Control's ("DRC's") November 14, 2011, Request for Additional Information ("RFI") received November 18,
2011.
Enclosed with this letter as Attachment 1 is a table with the horizontal survey coordinates for TW4-23, TW4-
24 and TW4-25.
Please contact me if you have any questions or require any further information.
Yours very truly,
DENISON MINES (USA) CORP.
Jo Ann Tischler
Director, Compliance and Permitting
cc: David C. Frydenlund
Harold R. Roberts
David E. Turk
K. Weinel
Central files
Attachments
N:\Well Drilling permits installation reports surveys repairs\TW4-23, 24, 25\11.14.11 RFI for coordinates\Novemebr 2011
Response to DEQ 11.14.11 RFI.doc
Letter to Mr. Rusty Lundberg
TW4-23, TW4-24, TW4-25 RFI Response
November 23, 2011
Page 2
Attachment A
TW4-23, TW4-24, and TW4-25
Survey Coordinate Information
DENISO
MINES
Letter to Mr. Rusty Lundberg
TW4-23, TW4-24, TW4-25 RFI Response
November 23, 2011
Page 3
Horizontal Survey Coordinates for TW4-23, TW4-24 and TW4-25
ID UTM NAD83 E UTM NAD83 N ELEVATION
TW4-23 632383.895 4154586.902 5607.37
TW4-24 632116.844 4155166.850 5625.43
TW4-25 632359.142 4155402.627 5644.72
DENISO
MINES