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APPCOR12453
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APPCOR12453
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Entry Properties
Last modified
8/24/2016 6:32:53 PM
Creation date
11/19/2007 2:31:01 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981034
IBM Index Class Name
Application Correspondence
Doc Date
10/18/1982
Doc Name
GEOTECHNICALLY RELATED PERMIT FINDINGS FOR THE RED CANYON 1 & 2 MINE APPLICATION
From
MLR
To
DAN MATHEWS
Media Type
D
Archive
No
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. _ l <br />~ -~- ~ DRAFT <br />- (ADD COMMENTS CONCERNING ACID OR TOXIC t4ATERIAL HANDLING NERE, <br />IF NECESSARY) - <br />- (ADD COMMENTS CONCERNING CONTEMPORANEOUS RECLAMATION AT THIS <br />POINT, IF APPROPRIATE) - <br />Grand Mesa Coal Company also proposes to deposit underground development waste <br />in a waste pile at the Red Canyon No. 1 and No. 2 mine site. waste is projected <br />to be produced at the rate of 33,000 cubic yards per year. The proposed waste <br />pile's total volume will amount to approximately 500,000 cubic yards. The <br />amended application contains geotechnical investigation and stability analysis <br />results which demonstrate that the proposed underground development waste pile <br />will achieve the required static slope safety factors of 1.5. During the <br />construction of the waste pi 1e, a temporary overburden stockpile of approximately <br />72,000 cubic yards maximum volume will be constructed within the disturbed <br />underground development waste pile area. With the imposition of the above-noted <br />stipulation, the Division finds that the backfilling and grading aspects of the <br />Red Canyon No. 1 and No. 2 mine permit are in compliance with the regulatory <br />requirements. <br />XX. Roads (2.05.3(3), 4.03) <br />The majority of the roads proposed at the Red Canyon No. 1 and No. 2 mines, with <br />the exception of the access roads to the proposed No. 2 portal, are now existing. <br />The design of the roadways conform with the requirements of Rule 9.03, with <br />the exception of the road from the service area to the office, which exceeds <br />the maximum overall grade permitted by 1~. Because this road is existing and <br />only experiences infrequent use, this minor variance is acceptable to the Division. <br />- (ADD COMMENTS REGARDING DRAINAGE OF ROADS AT THIS IACATZON) - <br />
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