PERMFILE101292

• Permit No: M1990041
• IBM Index Class Name: Permit File
• Doc Name: BATES HUNTER MINE PERMIT APPLICATION
• Media Type: D
• Archive: No

' (Figures 2 and 4). CCCM intends to mine ore from the Bates-
Hunter• mine at a rate of 75 tons per day. The ore will be
' trucked from the Bates-Hunter mine to the Golden Gilpin mill, a
distance of approximately 4,500 feet. All roads to be traveled
by the ore haulage truck are paved, state roads. The haul truck
will be a single axle, six ton, dump truck. The truck will make
approximately 13 trips to and from the mill per day. All
facilities at the Bates-Hunter mine such as shops, maintenance
facilities, offices, etc., are contained in the hoist house.
Sanitary facilities are also located in the hoist house and are
connected to the Central City sewer system.
Presently, only one opening, the Bates-Hunter shaft, is being
permitted. MSHA will require an additional emergency exit in the
future as the mine is developed. This emergency exit will be
permitted with MLRD when it is determined where this opening will
be located.
The Golden Gilpin mill is the second component of CCCM~s project
(Figure 4). CCCM intends to mill ore from the Bates-Hunter and
possibly other mines on a custom basis, using flotation. No
cyanide milling process is being permitted under this plan. A
flotation flow sheet of the Golden Gilpin mill is shown in Figure
6.
In addition to the normal lead, zinc and copper sulfide
' concentrates that will be recovered in the Golden Gilpin
flotation circuit, CCCM intends to install a final flotation
cleanup circuit in the Golden Gilpin mill that will recover
pyrite. As a result, the tailings tlischarged from the Golden
Gilpin mill will essentially be free of all acid generating
sulfide minerals.
' CCCM intends to discharge the tailings from the Golden Gilpin
mill into a series of four ponds (Figure 4). Pond 1 is the
primary settling pond where the coarse fraction of the tailings
' dischaarge will be allowed to settle out of solution. Ponds 2 and
3 are additional ponds where progressively finer fractions of the
tailings discharge will be allowed to settle. Pond 4 is a
solution treatment pond. Water from Pond 4 will either be routed
' back into the Golden Gilpin mill or treated for discharge.
Treatment will consist of adjusting the solution to a pH of 7 to
8 from a pH of approximately 9.2 prior to discharge. It is
' estimated that approximately 80~ of the water passing through
Pond 4 will be re-circulated back to the Golden Gilpin mill.
' As Ponds 1 through >1 fill with tailings, CCCM intends to
periodically remove the tailings from the ponds and sell the
tailings for various uses off site. As most of the sulfide
material will be removed from the tailings, the discarded
' tailings will have little or no acid generating capability.
All support facilities at the Golden Gilpin mill such as offices,
' maintenance facilities, shops, etc., are contained in the
existing Golden Gilpin mill structure. As a result, no new
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