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REV07205
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REV07205
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Entry Properties
Last modified
8/25/2016 1:08:06 AM
Creation date
11/21/2007 9:40:37 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1986076
IBM Index Class Name
Revision
Doc Date
11/25/1987
Doc Name
LIMITED IMPACT OPERATION 110 APPLICATION FORM
Type & Sequence
AM1
Media Type
D
Archive
No
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<br /> EXHIBIT D - RECLAMATION PLAN - AMENDED <br /> <br /> This reclamation plan is concerned with five different <br /> disturbances at the mine site, These include the open pit <br />' surface mine. dump removal, waste rock deposits, roads, and <br /> portals. <br />' The strip mine is in fact a series of cuts along the side <br /> slope of Ohwiler Ridge and open pit surface mining may be an <br /> overstatement of the actual operation. The open pit surface <br />' mine is a series of benches and high walls. As each new cut <br /> is made the overburden will be deposited aver those areas <br /> which have been previously mined out. The overburden will <br /> fill depressions, cover screened materials, etc. to provide a <br />' more suitable wor4c bench. <br /> The face of each bench (outslope) will range from 15 to 25 `~,, <br />~ <br /> feet in height, depending upon the soil structures / <br />~7 <br />S 6~ <br /> encountered. Walls of cuts into soft surface materials (see ~ <br />,,n,n(') ~r1 <br /> Figure 1 - Exhibit C) can not be as high as those placed in i <br />'GJf~ c <br />~ <br />' the harder subsurface sandstone and 2imestane lavers. The , <br />y~ <br />Q <br />~~r <br /> final angles of the pit walls will be 45 to ~~ degrees which `O <br />' <br /> should be adequate to maintain slope stability. If there is a n~j <br />~I <br />' <br /> problem with stability, particularly with cuts into the upper I <br /> strata, then, bac4;filling at the base of the cut will be used <br /> to increase slope stability. <br />Benches and toe slopes, where possible, will be scored, top <br />soil redressed, and reseeded. Top soil will be redressed to <br />the e;<tent available and to a depth (4 to 6 inches) which will <br />' support seedling development. Soil amenities and mulching <br />will be used, if necessary, to promote revegetation. <br />' Dump removal will be accomplished with either a front loader <br />worF:inq from the toe of the dump or a backhoe could be used to <br />pull rocF: up the slope. It is probable that the dump material <br />was deposited on the native soils, As a result only the dump <br />will be removed and the soil will be left in place. The soil <br />has been compacted for many years and would be a relatively <br />sterile growth medium. The compaction will be broken by <br />' ripping or scoring the top lavers of earth. Fertilizers will <br />be added to supply nutrients and mulching may be necessary to <br />keep seeds in place. <br />' The access road will remain as is. This road provides access <br />to other mine claims and to public lands in the San Juan <br />' National Forest. Roadways on the claim block: which lead to <br />the various dumps will 6e ripped and blocked to prevent <br />further use. Some grading may be used to pull soils from the <br />upslooe and downslope sides onto the roadbed. At a minimum <br />' the upslope will be graded to stabilize the cut. After <br />preparation the roadway will be reseeded. It is unlikely that <br />mulch or soil amenities will be needed since these graded <br />1 <br />
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