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The annual average tonnage mined and sold from the site are best predictions since many factors such
<br />as the economy, competition, etc. greatly affect the actual sales.
<br />The life of the gravel operation will be approximately 15 years. Where the gravel is mined from is not
<br />easy to determine since it is very dependent upon the gold operation. If the gold operation is viable over
<br />the 12-13 years shown in the plan, a large part (60,000 tpy) of the gravel sold from the site will be the
<br />waste gravel from the gold plant. If the gold operation is uneconomic, gravel will then be aggressively
<br />mined from the gravel mine area as shown on Map C-2. For planning purposes, it is predicted that the
<br />gravel operation will be in place 15 years at an average product sales rate of 130,000 tons per year, with
<br />2 possible scenarios:
<br />Scenario 1
<br />Year
<br />Gravel from piles
<br />t
<br />Gravel from gold
<br />roc. t
<br />Gravel from
<br />excavation t
<br />Total Gravel (tpy)
<br />1
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />2
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />3
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />4
<br />1 70,000
<br />60,000
<br />0
<br />130,000
<br />5
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />6
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />7
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />8
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />9
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />10
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />11
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />12
<br />70,000
<br />60,000
<br />0
<br />130,000
<br />13
<br />0
<br />0
<br />130,000
<br />130,000
<br />14
<br />0
<br />0
<br />130,000
<br />130,000
<br />15
<br />0
<br />0
<br />130,000
<br />130,000
<br />Total
<br />1,230,000
<br />Scenario 2: The gold mine does not operate for any significant period of time. In this case, the gravel
<br />mine will produce all sold material from the gravel mine area, which is basically 2,000,000 tons over the
<br />15 year period. Almost all of the previously mined areas are reclaimed from gravel mining.
<br />In either scenario, front end loaders will be used to deliver the raw gravel to the crushing, screening and
<br />wash plants for separation into various products. Fogger sprays will be present in all three plants to keep
<br />dust down. The crusher will also employ sprays. The plants will be located to minimize impacts to the
<br />town of Alma.
<br />Alma Place Mine 01/15 29
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