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GENERAL56423
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Last modified
8/24/2016 8:40:50 PM
Creation date
11/23/2007 11:27:47 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982057
IBM Index Class Name
General Documents
Doc Date
11/17/2004
Doc Name
Proposed Decision & Findings of Compliance for PR4
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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wheat production. The designated industrial area classification is the permitted Hayden Gulch <br />Mine Loadout. <br />Fish and Wildlife <br />Numerous wildlife species inhabit the general area of the mine site and tie-across haul road. The <br />most predominant big game species are elk and mule deer. Pronghorn antelope frequent the <br />vicinity of the tie-across haul road. Common raptors are golden eagle, red-tailed hawk, great <br />horned owl, marsh hawk and American kestrel. Use by greater sand hill cranes occurs in the <br />area of the tie-across haul road with an active staging area for these birds located approximately <br />0.75 miles north of the road. <br />Cultural and Historic Resources <br />The applicant conducted a number of site-specific literature searches and archeological surveys of <br />the permit area between 1979 and 1990. SCC has completed archaeological surveys of all <br />currently permitted and proposed areas associated with the extension. During these cultural <br />resource inventories, 10 sites and 5 isolated fmds were identified. Of these only 2 were <br />considered significant; one rock art site with adjacent fire-rock and one potential large camp site. <br />The camp site will not be disturbed, and appropriate mitigation measures have been proposed for <br />the rock art/fire-rock sites. <br />Description of the Operations and Reclamation Plan <br />The Seneca II-W Mine is a surface mine operation. The mine is adip-slope, area strip mine <br />utilizing conventional dragline mining methods. In addition, auger mining has been employed <br />in certain locations, and highwall mining operations are proposed in PR~1. The Seneca II- <br />W permit boundary encompasses two geographically separated areas; the mine area permit <br />boundary and the tie-across haul road permit boundary. The mine area permit boundary <br />includes three separate areas (North Block, South Block, and South Extension) and <br />associated facilities. The north and south blocks comprise the "original mine permit <br />area", while the South Extension was a permit area expansion approved within PR-2. As <br />of October 2004, mining has been completed in the original permit area. Within the <br />original permit area, Mine Pits A,B, C, and D were oriented perpendicular to the cropline and <br />the coal in the mine pit area dipped approximately 18 to 25%. A single dragline operated <br />alternately within the north and south areas. The Wadge coal seam was mined in all four pits <br />from the cropline to approximately 100 feet in depth. Auger mining was conducted within <br />certain final Wadge pit locations in the original permit area. <br />Mining in the south extension area was approved in PR-2 and subsequently initiated. <br />Development of this area has proceeded directly from the fmal cut in the A pit. Wadge Coal pit <br />extraction and progressive development is parallel to the cropline. Mining is constrained by the <br />Seneca R-W Findings Document 12 November 17, 2004 <br />Permit Revision No. 4 <br />
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