2007-10-22_REVISION - M1977285

• Permit No: M1977285
• IBM Index Class Name: Revision
• Doc Date: 10/22/2007
• Doc Name: Plan of operations approval
• From: USDA Bureau of Land Mgt.
• To: Denison Mines ‎(USA)‎ Corp.
• Type & Sequence: AM2
• Media Type: D
• Archive: No

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Z ~ 200 U~ Dolores Public Lands Office
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fef®^~1 (~st Service p0 Box 210 USDI Bureau of Land Management
D~Mt~`an National Forest Dolores, CO 81323 San Juan Center
Dolores Ranger District Ph [phone] Fax [phone] Dolores Field Office
http://www.fs.fed.us/r2/sanjuan http:/lwww.co.blm.gov
CERTIFIED MAIL NO. 7006 0810 0006 7169 7280
Return Receipt Requested
In Reply Refer To: COC 53227 (07-2A)
File Code: 3809
mod, C0810
>(~13CeNe Date: 17 October 2007
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PLAN OF OPERATIONS APPROVED- CONDTI'IONS OF APPROVAL REQUIRED
DETERMINATION OF FINANACL4L GUARANTEE AMOUNT
Dear Mr. Roberts;
l u Denison Mines (USA) Corp. (Denison) plans to install three vent holes. The purpose is to provide
adequate ventilation to existing and operating underground uranium mines. Ventilation for the Sunday
Mine Complex must be established as mine workings advance into areas of undeveloped ore, The Plan of
Operations Amendment (Amendment), dated September 17, 2007, proposes construction, operation, and
reclamation of the proposed vent holes.
The Plan Amendment for the addition of three vent holes for the Sunday Mines, San Miguel County,
Colorado, has been assigned BLM casefile number COC 53227 (07-2A). Approval is subject to the
mitigations identified in the Environmental Assessment (CO 800-2007-115) and incorporated into the
Plan as Conditions of Approval (COAs}. The purpose of these COAs are to prevent unnecessary or
undue degradation. Denison Mines must conduct operations as described in the Amendment and in
accordance with the following conditions of approval.
A Weed Management Plan was completed in June, 2007 for the mine site to control non-
native invasive species. Requirements include:
a. manually cleaning all vehicles and equipment of mud, dirt, and plant parts, prior to
entering the project area.
b. Areas of proposed disturbance will be treated for noxious weeds at least one week prior
to actual activities to create such disturbance. Pesticides may be used in the control of
noxious weeds. Denison will obtain an approved Pesticide Use Proposal from the BLM,
prior to application of any pesticides.
c. Annual reports, summarizing the status of the noxious weed program and of pesticide
usage, will be submitted to the BLM. The annual report will document the status of
existing infestations and new noxious weed infestations that have been found, mitigation
measures that have been implemented. Pesticide Application Records will be submitted
annually, subsequent to pesticide applications.
These COAs are needed reduce the densities of noxious weeds below current levels.
2. Denison will not conduct construction activities from May 15 to July 15`x'.
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