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2024-06-07_PERMIT FILE - M2024026 (28)
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2024-06-07_PERMIT FILE - M2024026 (28)
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Last modified
6/11/2024 7:22:14 AM
Creation date
6/10/2024 10:44:37 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2024026
IBM Index Class Name
Permit File
Doc Date
6/7/2024
Doc Name Note
Exhibit E -Reclamation Plan
Doc Name
Application
From
Colorado Sand Company II, LLC
To
DRMS
Email Name
NCG
JLE
EL1
Media Type
D
Archive
No
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Exhibit E <br /> Page 10 <br /> followed by a discing of the surface(if determined necessary),to minimize or mitigate any compaction <br /> effects and to ensure that residual plant root systems and organic materials are retained within the <br /> uppermost 8 to 12-inches.A nominal 8 to 12-inch growth medium cover will be applied across the area <br /> in its entirety; and,the area will then be considered ready for seeding. <br /> • Mine Pits <br /> CSC will utilize a bulldozer and/or excavator for crest and further overall slope reduction along pit <br /> perimeter sidewalls, etc.;however,typically this will have been accomplished during the concurrent <br /> reclamation phase. The pit depression depth(i.e.,post-mining profile)is anticipated to be approximately <br /> 30 ft.,on average,with the localized post-mining depth being dependent on a number of variables,to <br /> include undulations in natural topography,mineable depth as determined by economically viable <br /> resource presence, etc.,all of which are anticipated to somewhat differ across the full extent of the <br /> Permit Area. <br /> Immediately following pit sidewall slope reduction(to a 3 H:1 V gradient or less), a nominal 8 to 12-inch <br /> course of"growth medium"will be placed on the side-slopes and base of the pit depression(s); and,the <br /> areas will be considered ready for seeding. <br /> Since the reclaimed pit floor areas will consist of marginal quality eolian sands and/or silts, in <br /> conjunction with the nominal 8-to 12-inch growth medium overlay,the pit depression(s)will not result <br /> in"impounding"features,but rather,they will function as large-area"infiltration" features,thereby <br /> facilitating localized infiltration of precipitation, etc.Aesthetically,the pit depressions(due to their large <br /> areal extent)are anticipated to blend with the surrounding natural topography. <br /> • Seeding <br /> Revegetation is largely focused on reestablishment of those rangeland plant species identified in Exhibit <br /> J: Vegetation Information.No trees or shrubs are planned as a component of the revegetation process; <br /> rather, all revegetation activities will be focused on reestablishment of the rangeland grass species. <br /> While sagebrush is noted as being present within the Permit Area(and surrounding ranch lands),albeit at <br /> a relatively low density,no specific attempt will be made to re-introduce or re-establish the species <br /> within reclaimed areas. However,to the extent sagebrush may be naturally re-introduced and established <br /> within the reclaimed Permit Area during(or after)the five-year monitoring and maintenance period, <br /> CSC will consider such to be beneficial to overall stabilization objectives and such growth will be <br /> neither discouraged nor otherwise managed. Sagebrush species will not be subject to(i.e.,will be <br /> excluded from)the site's invasive weed species control plan and efforts associated therewith. <br /> The rangeland revegetation activities will be carried out in a manner consistent with that recommended <br /> by Weld County,with the seed mix and application rate developed as per the "sandy site" mix <br /> specification shown below in Table E-2; Seed Mixture and Application Rate(for drilled seeding <br /> applications). It is anticipated that all specified species will remain commercially available during the <br /> life-of-mine and any subsequent revegetation phases,to include the five-year post-closure monitoring <br /> and maintenance period. <br /> Colorado Sand Company II, LLC <br /> Kersey Mine Construction Material Regular(112)Operation Reclamation Permit Application <br /> June 7,2024 <br />
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