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REV102490
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REV102490
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Entry Properties
Last modified
8/25/2016 1:13:08 AM
Creation date
11/22/2007 12:55:24 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Revision
Doc Date
6/27/2003
Doc Name
OSM Mine Plan Decision Doc, Table of Contents-Section 1-4
From
OSM
To
DMG
Type & Sequence
PR5
Media Type
D
Archive
No
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700 ~; February 2000 Summary Paqe S-5 <br />9Y The Elk Creek Coal Lease Tract would also be mined by longwall techniques. The production on this <br />tract would also be at 5 million tons per year from the D coal seam. - <br />Under Alternative D, the applicant proposed to drill 25 exploration holes. Holes would be rotary drilled <br />'h to predetermined depths, cased as necessary, and the coal zone would be cored. Since the release of <br />the Oraft EIS, the applicant requested shifts on some of the drill Note locations. These proposed <br />relocations were not received in time to analyze in the EIS, or for the public to review and comment on <br />them. However, the EIS examined the broader effects of exploration in the delineated license area, <br />and can be relied upon to assess granting the license and approve speafic hole locations originally <br />submitted that were unchanged. <br />S-2.3 Alternative C -Multiple Seam Mining <br />This altemative is similar to Alternative B, with the inclusion of additional B seam coal reserves in the <br />Iron Point Coal lease Tract, as well as additional surface area and reserves that are located between <br />ve the Iron Point and EIk Creek Coal Lease tracts, An area was also added to the Iron Point Coal Lease <br />Tract in the Terror Creek drainage to facilitate flexibility in logting entries beneath Terror Creek for <br />is access to coal in the Bowie No. 1 "pod." In Alternative C, mining would be completed by longwall <br />techniques, and coal production would be the same as outlined in Alternative B. <br />S-2.4 Alternative D -Subsidence Protection <br />This altemative would be essentially the same as Alternative C, with the limitation that there would be <br />no subsidence under Terror or Hubbard creeks, or the Curecanti-Rifle 230/345 kV electric transmission <br />Tine. Based on continuing geologic analysis for the area, since the issuance of the Draft EIS, the <br />boundaries of the proposed Iron Point Coal Lease Tract have been modified. It appears that the B and <br />D coal seams thin and split into seams of unmineable thickness toward the northwest part of the tract. <br />fn addition, the continuing analysis indicates that the igneous intrusions may have "burned" portions of <br />the B and D coal seams, leaving no mineable coal. Based on this re-evaluation of the lease tract, <br />there are approximately 5 million tons of coal less in Alternative D than originally estimated in the Draft <br />EIS. The re-alignment of the boundary also provides additional protection to Terror Creek Ditch and <br />i Reservoir. <br />S-2.5 Preferred Alternative <br />'n The responsible agencies have identified Alternative D as the a preferred altemative. Alternative D <br />provides for leasing with standard special coal lease stipulations, subsidence protection under <br />this perennial drainages, and additional seams and acreage. In particular, the agendes have Beaded that <br />protection of perennial drainages would be necessary to maintain watershed integrity and ecosystem <br />health, so provisions in Alternative D offer protection for perennial drainages by eliminating subsidence <br />in those areas. Coal recovery for Alternative D would be estimated at approximately 60 million tons for <br />the two lease tracts. <br />For the Iron Point Coal Exploration License, the preferred Alternative is D with the exceptions <br />addressed in S-2.2, Alternative B -Proposed Action. Alternative B for the exploration license would <br />provide standard and specal Surface use stipulations to reduce potential surface impacts. <br />.e ~ S-3.0 ENVIRONMENTAL ANALYSIS <br />=d ~ This section of the EIS describes both the existing conditions of and the environmental consequences <br />fo the area and its resources. Resource descriptions focus on areas which would likely be affected by <br />reasonably foreseeable mining and exploration activities. <br />Final Environmenfal Impact Statement <br />
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