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2020-08-03_REVISION - M1980244 (2)
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2020-08-03_REVISION - M1980244 (2)
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Entry Properties
Last modified
8/10/2020 9:44:19 AM
Creation date
8/10/2020 8:31:11 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Revision
Doc Date
8/3/2020
Doc Name Note
Exhibit E
Doc Name
Adequacy Review - Preliminary
From
CC&V
To
DRMS
Type & Sequence
AM13
Email Name
TC1
MAC
ERR
JPL
BFB
Media Type
D
Archive
No
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<br />Cripple Creek & Victor Gold Mining Company Exhibit E Cresson Project Amendment 13 3 <br />Areas that have been compacted through traffic or placement of structures and identified for reclamation will be ripped before and/or after grading to loosen the soil and facilitate revegetation. <br />1.4.2 Growth Medium Replacement <br />Growth medium generally will be transported from the closest growth medium storage area to the area being reclaimed or, where possible, will come directly from active salvage operations to concurrent reclamation areas. In general, a minimum of six inches of growth medium are intended to be replaced at reclamation sites, which has been used in the financial warranty cost estimates discussed in Exhibit L of this application. The replaced growth medium will be spread using dozers. CC&V has accounted for topography (i.e., three-dimensional measurements) in its closure estimate. If the mine is developed to full build out described in this amendment there will be approximately 4,460 disturbed acres. Growth medium will not be replaced on highwall benches within the mining areas due to accessibility issues. Growth medium will be placed on accessible haul roads and pit floors. <br />1.4.3 Revegetation <br />After growth medium placement and grading, soil sampling may be performed to assess the potential need for use of additional soil amendments to enhance revegetation efforts. Fertilizer and other appropriate soil amendments will be broadcast on the reclamation areas before, during or after growth medium placement depending on site specific conditions and constraints (e.g., accessibility, moisture content, application rate). <br />Application of the seed mix presented in Table E-1 will be broadcast, drilled, or hydro-seeded onto the placed growth medium. Table E-1 provides a list of preferred species of seeds and a list of alternative species seeds in the event the preferred seed is not commercially available. The application rate of the seed mix will be approximately 25 pounds of pure live seed (PLS) per acre. The seed mix may be further incorporated into the growth medium covered using a rangeland harrow, slope chain, or equivalent equipment, as necessary and feasible. All seeded areas will be mulched either with straw mulch or wood fiber mulch depending on application method. Hydro-mulch or other surface treatments may be used to facilitate the revegetation efforts in steep or high-profile areas and generally will be applied at a rate of 2,000 pounds per acre of wood fiber hydro-mulch. A combination of broadcasting of the seed mix presented in Table E-1 followed by slope chaining or harrowing and/or hydro-seeding/hydro-mulching were used in the financial warranty calculations presented in Exhibit L of this application. <br />The addition of soil fertilizer has been estimated for financial warranty calculations at a rate of 400 pounds per acre of a blend of nitrogen, phosphorus and potassium fertilizer product. The results
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