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2003-05-14_REVISION - M1977342 (3)
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2003-05-14_REVISION - M1977342 (3)
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Last modified
6/15/2021 5:44:32 PM
Creation date
11/21/2007 7:56:29 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977342
IBM Index Class Name
Revision
Doc Date
5/14/2003
Doc Name
Summary of the Amendment Application
From
DMG
To
Parties to Amendment AM-04 Application
Type & Sequence
AM4
Media Type
D
Archive
No
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Summary of Amendment AM-04 Permit No. M-1977-342 <br />Henderson Mine and Mill 2 Mav 14, 2003 <br />Tree and Shrub Planting Requirements <br />Henderson's reclamation plan for tree and shrub planting will remain unchanged under the proposed <br />permit amendment for all azeas of the affected land with the exception of the tailing impoundment. <br />The tailing impoundment will be revegetated to grass and forbs using the currently approved seed <br />mix and tree and shrub islands will be established using thicker replacement soil cover (minimum 3 <br />feet opposed to 6-18 inches outside the tree islands) over the surface of the mill tailing. In the <br />DMG's recommendation on the amendment application to be issued after the pre-hearing <br />conference, details on the spacing, size, and stocking rate for the tree islands will be specified. The <br />tree island requirements will be established based on safe range from cover criteria for small <br />animals and review of pre-mine aerial photos to be provided to DMG by Henderson. DMG has <br />determined that Henderson's proposal to use the assumption, for the purpose of calculating the <br />amount of required reclamation bond, that the crushed ore stockpile could be used as fill material to <br />create the basal portions (lower two feet or so) of the tree islands is not acceptable. The sulphide <br />minerals in the crushed ore could result in low pH in the plant rooting zone that would hamper tree <br />and shrub establishment and growth. Resultingly, DMG will require sufficient reclamation bond to <br />borrow additional soil for the tree and shrub islands from the perimeter of the tailing basin, as well <br />as sufficient bond to dispose of the ore pile, if the ore pile were to be present in a bond forfeiture <br />situation, by dumping it into the tailing pond. <br />Change to IndustriaUCommercial Post Mining Land Use on a Portion of the Henderson Mine <br />The DMG has determined that industrial/commercial is a beneficial use for the proposed locations, <br />and has received no adverse public comments on this proposed change. The Clear Creek County <br />Board of Commissioners has passed a resolution in favor of the permit amendment relating to the <br />retention of certain mine structures for industriaUcommercial use, and the Clear Creek Economic <br />Development Corporation has provided written comments in favor of the retention of structures. <br />DMG will be recommending approval of this component of the amendment. <br />Delete Lost Creek Reservoir Area from Affected Lands covered by the Reclamation Permit <br />This is essentially a housekeeping matter as it relates to the reclamation permit that will facilitate <br />potential use of the real property value of the Lost Creek Ranch as part of the required reclamation <br />bond. The reservoir has not been constructed and there are no plans to construct the reservoir to <br />support milling operations. DMG will be recommending approval of this component of the <br />amendment. The DMG will verify and establish the exact acreage of affected land remaining in the <br />reclamation permit and include this information in the recommendation on the amendment <br />application to be issued following the pre-hearing conference. <br />The approved post mining land use at Henderson is open forest. For every other of the <br />approximately 3000 reclamation permits issued by the state of Colorado, with the exception of the <br />Climax Mine permit held by the same company as Henderson, the approved land uses fall within <br />the categories that have been adopted by the Mined Land Reclamation Board for the purpose of <br />permitting. These categories are: <br />
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