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GENERAL50690
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GENERAL50690
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Entry Properties
Last modified
8/24/2016 8:37:17 PM
Creation date
11/23/2007 6:10:34 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977285
IBM Index Class Name
General Documents
Doc Date
2/7/2003
Doc Name
Project Maps Site Reports and Response
From
IUC
To
DMG
Media Type
D
Archive
No
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The east waste dump has runoff control berms cut in a number of locations along the <br />interior dump surfaces to contain runoff. The outer toe of the dump is stable with no slumping or <br />erosion. Near the main entrance gate at the northeast corner of the site is small pile of low-grade <br />material. A small waste dump is next to the low grade stockpile; this dump has not been <br />regraded, but is well revegetated. The main waste dump in the western half of the Sunday Mine <br />site is stable with no erosion or offsite sedimentation occurring. In November 2002 the dump <br />surface was graded and the periphery berm was pushed up, where needed, to ensure continued <br />control of runoff, and the top of the dump was dished to slow and contain runoff. A number of <br />catchment structures exist along the northern perimeter of the waste dump, and these structures <br />are doing a good job of preventing sediment dispersion. The only designated Topsoil Stockpile <br />at the Sunday Mine is also located north of the main dump. The pile is estimated to contain <br />approximately 1800 yd3 of topsoil. In spite of the fact that topsoil was not salvaged in past <br />mining operations, suitable growth media is available locally as evidenced by the success of <br />revegetation efforts in areas that have been reclaimed and in areas which are "reclaiming" <br />naturally. In addition, the material captured behind catchment structures and sedimentation <br />control structures maybe suitable for use as topsoil in final reclamation. <br />Figure 3 presents the Proposed Affected Area boundary for the Sunday Mine. The <br />proposed boundary encompasses all disturbances associated with the Sunday Mine site and <br />leaves room for final reclamation recontouring and grading. The Proposed Affected Area <br />boundary extends to the west of the waste dump to match the Proposed Affected Area boundary <br />for the Carnation mine. By matching these two site boundaries, final reclamation will be much <br />more effective and successful, rather than trying to work around a gap between the permitted <br />areas. <br />The Proposed Affected Area exceeds 20 acres, but the total disturbed acreage under the <br />Sunday Mine 112 Permit meets the allowable 40 acre limit. The Operator has attempted to show <br />all current disturbed areas and the expected ultimate Affected Area for this Permit. Upon <br />reaching agreement with the Division on the Sunday Mine Affected Area boundary, the <br />boundary will be marked in the field to relieve the outstanding Corrective Action item. <br />The western toe of the existing waste dump appears to extend outside the Sunday Mine <br />112 Permit boundary. This needs to be confirmed by conducting a detail survey to locate the <br />precise claim boundaries which constitute the 112 boundary. In any event, the ground to the <br />west of the dump toe is controlled by the Operator. The current configuration of the waste dump <br />existed for an unknown number of years before the current Operator received the Permit by <br />transfer. <br />GMG Mine. <br />The GMG Mine (see Figure 4) is a historical mining operation (i.e. in existence prior to <br />enactment of the Mineral Rules and Regulations of the Colorado Mined Land Reclamation <br />Board ("PreLaw")). In discussions with personnel that have worked for past operators at the <br />Sunday Mines, the GMG decline has been inaccessible to equipment for many years and has not <br />been fully utilized since the 1950's and 1960's. <br />The current Operator placed a mine fan in the GMD portal in July 1998 in conjunction <br />with resumption of mining operations at the Sunday Mine. Mining operations in the GMG <br />underground workings associated with the Sunday Mine were suspended in July 1999. The <br />6 <br />
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