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2012-02-28_REVISION - M1980244 (104)
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2012-02-28_REVISION - M1980244 (104)
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Last modified
8/24/2016 4:49:09 PM
Creation date
3/9/2012 9:33:41 AM
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Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
REVISION
Doc Date
2/28/2012
Doc Name
VOL. 1, Exhibit U
From
CRIPPLE CREEK & VICTOR GOLD MINING COMPANY
To
DRMS
Type & Sequence
AM10
Email Name
TC1
Media Type
D
Archive
No
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pump and pipeline will require upgrading to provide water for the High Grade Mill facilities, and <br />SH 67 will be realigned to run across the newly constructed SGVLF toe berm. <br />Additional ancillary changes will occur as a result of MLE2 activities. These changes are <br />discussed in more detail in subsequent sections of the document, along with detailed discussions <br />of the key project elements mentioned above. <br />Approximately 220 MT of ore and 310 MT of overburden will be mined within the proposed <br />MLE2 areas for a total of about 530 MT. Note that quantities of ore and overburden approved in <br />previous amendments to the Cresson Project are not strictly additive as the definition of ore <br />changes with changing gold prices. As a result, some rock previously categorized as overburden <br />is now categorized as ore. A mass balance shows that while an additional 310 MT of overburden <br />will be mined as part of MLE2, the overall increase in overburden tonnage for the Cresson <br />Project is only 185 MT. This proposed MLE2 ore and overburden mining will be accomplished <br />using a modestly expanded equipment fleet. Replacement equipment will be purchased as <br />needed to maintain operations. A total of approximately 630 MT of ore and approximately 975 <br />MT of overburden are proposed to be mined at the Cresson Project. <br />Ore handling methods will change slightly due to the addition of the High Grade Mill facilities. <br />All high grade ore will be first crushed using the existing crushing facilities. Based on the <br />current annual rate of about 27 MT, approximately 2 MT will be higher grade ore material that <br />will then be directed to the High Grade Mill facilities with the remaining 25 MT going directly to <br />the VLFs (AGVLF and SGVLF). Higher grade ore material will be closely mapped in each <br />mine area and blasting will occur to selectively blast the higher grade zones separately from <br />other ore zones intended for the leach facilities. The higher grade ore material will be stockpiled <br />in the mine areas and fed in weekly batches through the crushing facilities, separated from ore <br />material crushed for the placement in the VLFs. The crushed higher grade ore material will be <br />hauled from the LOB to stockpiles near the High Grade Mill facilities to allow for continuous <br />feed of higher grade ore through those facilities. There will be up to 3 MT of ore and higher <br />grade ore material stockpiles at the Cresson Project, either within the mining areas, or at the <br />crusher, LOB, or High Grade Mill facilities. <br />The mine area ore material will be crushed and processed using the existing crushing and <br />conveying facilities. The existing LOB and associated conveyors will be used for loading of the <br />crushed ore material into the mining fleet for placement within the AGVLF and SGVLF. In <br />addition, the ground product coming from the High Grade Mill facilities will be agglomerated <br />and blended at the LOB with the other crushed ore material for placement on one of the VLFs for <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />1 -6 <br />
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