2004-01-07_REVISION - M1980055HR

• Permit No: M1980055HR
• IBM Index Class Name: Revision
• Doc Date: 1/7/2004
• Doc Name: New Reclamation Map Accompanying Technical Revision
• From: DMG
• To: International Uranium ‎(USA)‎ Corp.
• Type & Sequence: TR1
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
1~ January 7, 2004
Terry Wetz
International Uranium (USA) Corp.
Independence Plaza, Suite 450
1050 Seventeenth Street
Denver CO 80265
as ar~~aa~aJ,:
aa~~aa'oey
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SA FETY
Bill Owens
Governor
Greg E. Walther
Executive Director
Ronald W. Cattany
Acting Division Director
'/ ~ t/
Re: Topaz Mine, Permit M-1980-055 HR, New Reclamation Map Accompanying Technical Revision TR-O1.
Dear Mr. Wetz,
I have reviewed the updated reclamation map you submitted to this office last week. That map provides most of the
follow-up information needed to complete the updates included in the recently-approved Technical Revision TR-
O 1. Many of the reclamation plan details have been stated in various pieces of correspondence during the past year.
With the end of this whole updating process now in sight, I have a few comments specifically concerning the
reclamation map and generally concerning the reclamation plan, as I begin tying it all together. Your responses
will also help me more closely estimate the reclamation costs.
Updated Reclamation Map
The new map is accepted in its present form, since it includes all required items and conforms to the standards set
forth in Hard Rock Rules 6.2.1 and 6.3.5. It includes all items specific to recent inspections and the recent revision.
Leaving the spot elevations on the new map was helpful. By providing reference between current elevations and
post-grading reclamation elevations, it was possible to estimate the earthwork still to be performed (volumes,
distances and push gradients). There was one anomalous spot elevation noted, which is located about 170 feet east
of permit comer TZ-4. It does not appear to affect the earthwork or other reclamation tasks, and no further
correction or clarification is required.
Updated Reclamation Costs
The reclamation tasks can be briefly summarized as follows. The onsite structures (steel sets at portal entrance,
cribbing, building superstructures and concrete floors) will be demolished. It is planned that all such materials will
be placed in the 10' x 10' decline. Even with careful placement, this may require beginning the backfilUburial at
least 100 feet in from the entrance.
Miscellaneous debris may a{so be buried onsite. Contaminants (transformers, hydrocarbons or other fluids,
possibly stockpiled ore) wi(1 require removal from the site and proper disposal, though this type and quantity of
material is not itemized at this time. The access road culvert will remain.
Based on information derived from the new map, the estimated amount of earthwork to perform appears to be in the
raz~ge of about 13,000 cubic yards of cut and fill. Material will be removed from the dump crest and its upper
slope, and central portion of the pad. It will be placed along the east and south margins against the existing steep
cut faces, requiring of an average 200-foot haul/push. Sloped areas should be left fairly rough to catch seed,