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' Pr=liminary Adequacy Review <br />Clear Coal Co., Inc. - Bear Mine <br />Pa~3e Seven <br />~5.4 (2) (c) Backfilling and Grading <br />~. The application states; "Backfilling the portals will entail filling ten to <br />twen til feet out by a double solid block wall which will be constructed in portal <br />' entries." (Page 70j Zn accordance with Rule 4.19, the portal areas should be returned <br />t:; approximate original contour, if it can be accomplished with a minimum static <br />lope safety factor of 1. 3. The applicant must perform a stability analysis of the <br />proposed backfill configuration in order to demonstrate conformance with Rule 4.14.2 <br />(1)(b). This stability analysis must consider both portal highwall cut slope as well <br />.ss the portal bench fill embankment. VOLUP'1E 2 OF <br />3. The final topography map included in the application does not indicate the <br />c•1:anges that will occur on the site as a result of the new highway and the z~e1o- <br />r-tion of the river channel. These changes must be submitted. Any changes in the <br />' rc-•clamation plan due to the construction of the highway must be provided. (See <br />Sections 2.05.4(a,b,c,d,and f).) FIivAL C0~!TOL'R PAP 2,0~:,3(2)(A)-1 <br />' 3. Zt is not clear from the application how the old coal waste site immediately <br />to the West of the office-shop area, adjacent to the sediment pond, will be reclaimed. <br />1':r the material to be hauled off as a part of the facilities clean up, or is it to <br />' b<a covered with soil or non-toxic fill material and seeded? There appears to be a <br />potential that the waste pile is in the path of the proposed river dhannel relocation. <br />l.` this is the case, the pile will have to be removed. The applicant should explain <br />1~~~w this problem will be resolved, and whether Bear Coal Company or the State Highway <br />~rtment will be responsible. FIGURE 2.05.(!(2)(a)-1(c) PAGE 70 <br />9. Zt has come to the bivision's attention that ARCO plans to install a fresh- <br />' w,~ter pond at some future date within the area presently occupied by the Bear Mine <br />surface facilities. If any details regarding the exact location and size of the pond, <br />aid the proposed construction date are available as it may pertain to this permit <br />' application, they should be provided to the Division. ^--- '- <br />2.05.9 (2) (d) Topsoil ~ ""` ~ '' <br />' 1. From what portion of the permit area was the topsoil stripped that is presently <br />.stockpiled? Was just the A horizon stripped? What are the characteristics.(i.e., <br />Suitability of the stockpiled topsoil as required by 2.09.9(1)(b))? This information <br />'rust be discussed to comply with 4.06.2 (2) (a) . PAGE 71 <br />FIGUP,E 2.0(!,9(~)(a)-1 & 2 <br />~ The Division requires that the applicant supply estimates of volumes of avail- <br />able topsoil and acreage of disturbance to be topsoiled to allow the determination of <br />approximate coverage of the reclaimed area. <br />FIGURE 2.05.(!(2)(s)-1(a), -1(c) AND FIGURE 2.05.('(2)(n)-1 <br />~. The applicant must be more specific with respect to the additional topsoil <br />Eroposed to be hauled from Paonia Reservoir. What is the actual source of the <br />material? Provide analyses of the material to determine suitability. Please out- <br />line the agreement and list the other parties involved in the purchase of the <br />topsoil. PAGE 71 <br />~• <br />~J <br />