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APPCOR12152
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APPCOR12152
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Last modified
8/24/2016 6:32:30 PM
Creation date
11/19/2007 2:27:20 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981026
IBM Index Class Name
Application Correspondence
Doc Name
CANADIAN STRIP MINING AND RECLAMATION PLAN WYOMING FUEL CO - TECHNICAL AND ENVIRONMENTAL ANALYSIS
Media Type
D
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No
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<br />The revised Mining and Reclamation Schedule (annual dis- <br />turbance and reclamation by phase) and Overburden Balances <br />(annual overburden movement by phase) are given in Table 1 and <br />Table 2, respectively, of Addendum II of the permit application. <br />There are several problems with these tables, affecting back- <br />filling and grading and bonding, which are discussed in Chapter <br />III of this TEA. <br />The applicant is currently using a loader and trucks to <br />remove and replace topsoil, a small shovel and trucks to remove <br />and backfill overburden, and a loader and backhoe and trucks to <br />remove coal. Coal will be hauled to a crushing facility for <br />processing. Disposal of coal processing waste is discussed on <br />page 57, Volume 1 of the permit application. The applicant has <br />indicated that crushing operations at the site result in no <br />processing wastes. Since some provisions should be made for <br />potential waste disposal, this is discussed in more detail in <br />Chapter III of this TEA. Similarly, non-coal processing wastes <br />have not been discussed, although it is stated on page 65, Volume <br />1 of the permit application that "any debris, acid-forming and <br />toxic forming materials will be disposed of in a specially- <br />designated area of the present backfill area." <br />The applicant is proposing to continue the above described <br />operations far the mining of Pit 2. (Section 2.05 and Addendum II <br />of the permit application). The truck and shovel haul back <br />method of removing overburden which the applicant proposes to use <br />is probably the most advantageous, given the problems with sodium <br />adsorption ratios (SAR) noted on the overburden analyses (Tables <br />4 and' 10 of Appendix C of the permit application). As noted by <br />the applicant (page 5 of Addendum 1, and Figure 1, of the permit <br />application) this method will generally allow overburden material <br />excavated from near the pit bottom to be backfilled near the pit <br />bottom and overburden material excavated from the upper portions <br />of the pit to be backfilled in the upper portions of. the pit. <br />This method of excavation requires additional planning and gener- <br />-33- <br />
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