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GENERAL36825
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Last modified
8/24/2016 7:57:12 PM
Creation date
11/23/2007 8:53:24 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981034
IBM Index Class Name
General Documents
Doc Date
6/16/1999
Doc Name
PROPOSED DECISION & FINDINGS OF COMPLIANCE FOR SL2
From
Full Phase II & III
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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16 <br />supports, with wood shims wedged atop the blocks to level the trailer. Most of the concrete block <br />supports appeared to be resting on poured concrete bases. Some of the supports appeared to be tilted <br />somewhat off vertical. <br />The final feature of concern to a landowner viewed during the inspection on December 1, was a ground <br />crack on Property #37, owned by Jack Amey. The crack was located on sloping ground in the southeast <br />corner of Mr. Amey's property, adjacent to the northeast comer of the Red Canyon Mine surface <br />disturbance area, in the SE/4NW/4S W/4 Sec. 12. The crack extended in asemi-circle, approximately <br />60 feet in length, from a few inches up to 18 inches wide, by at least 4 feet deep at its deepest location. <br />The location is several hundred feet east of the Red Canyon Mine workings, and approximately 50 feet <br />east of the Red Canyon Mine surface disturbed/affected area boundary. Comparison with the Mine Plan <br />Map and Previously Affected Land Map in the permit application shows the feature to be located over <br />pre-law underground workings, and within an area designated as a 1969 strip mine disturbance, which <br />corresponds to on-site observation. The crack appears to have developed in uncompacted fill material <br />dozed or dumped onto the hillslope from an adjacent pre-law strip mine cut. Settling of this poorly <br />compacted fill and the resultant cracking do not appear to be related to the Red Canyon Mine <br />underground workings. <br />Although the feature would appear to be unrelated to the Red Canyon Mine operations, Jim Stover of <br />MINREC shovelled dirt into the crack to fill it in, after the inspection was concluded. <br />Prior to inspecting the Arney property, locations along 207 Drive and T-50 Road where the roads passed <br />over the underground workings were inspected. No cracking, buckling, swelling, or other indications of <br />possible subsidence damage were observed, and no such damage has been reported to the Division in the <br />past by the Delta County Road Department or local residents. <br />A follow-up inspection of the Hudson, Truitt, and Amey properties was conducted by DMG engineering <br />geologist, Jim Pendleton, on March 17, 1999. Dr. Pendleton concluded that none of the features of <br />concern to the landowners appeared to have been caused by mine subsidence. A detailed account of his <br />evaluation and conclusions is provided in a memorandum of March 24, 1999, which was enclosed with <br />a letter of April ] 5, 1999, transmitted to the operator, landowners with subsidence concerns, and other <br />inspection participants. Based on review of permit documents, monitoring records, and surface <br />inspection, the Division finds that no material damage related to Red Canyon Mine subsidence has <br />occurred. <br />Land Use <br />The reclaimed site is within an area designated by the Colorado Division of Wildlife as critical mule deer <br />winter range, and the approved post-mitring land use is wildlife habitat. The regraded area blends in well <br />with the surrounding topography, and was seeded in 1988 with a diverse mixture of primarily native <br />species, selected to support the wildlife post-mining land use. Revegetation has been very successful, <br />visually dominated by fourwing saltbush, which is abundant throughout the site in a variety of age <br />
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