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Trapper Mine; C- 1981 -010 <br />RN6; Adequacy Review No. 2 <br />2' ) October 2012 <br />Other Maps <br />10. Please make any necessary updates to the following maps: M12; Postmining Topography Maps, M47a; <br />Utility Waste Disposal Plan and M09; haul roads. <br />Bond Amount <br />11. For Task 093, the volume of topsoil used for the estimate was derived from Table 1.4 -9 in the permit. <br />However, during the Phase II bond release SL12, the amount of bond was reduced to account for the <br />acreage of F -Pit contained in the release. Upon further review, the volume of material used for SL 12 was <br />greater than the total volume estimate for the entire F -Pit area in Table 1.4 -9. Given this, there appears to <br />be a discrepancy in the volume estimated to spread topsoil on the remaining F -Pit area not granted Phase <br />II bond release. As indicated above, section 1.4 of the permit will need to be updated and the volume of <br />material for F Pit will need to be clarified. <br />12. For Task 101, there appears to be a discrepancy for the acreage accounted for F -Pit. During Permit <br />Renewal No. 5 (RN5), the acreage accorded to F -Pit for revegetation was 486 acres. However during the <br />PR6 it appears this acreage was reduced to 55.8 acres. It is unclear why the acres were reduced to the <br />PR6 amount. The PR6 acreage is consistent with Table 1.4 -10 in the permit. Since RN5, Trapper was <br />granted Phase III bond release on 40.1 acres of the F -Pit area. Given this, the Division used the RN5 F- <br />Pit acreage minus the SL 13 F -Pit acreage for the total area to be revegetated for F -Pit for the updated cost <br />estimate (445.9 acres). This acreage will need to be clarified. <br />The Division updated the reclamation cost estimate with updated costs. This updated estimate total is <br />$29,990,889.58. This estimate includes reclamation tasks identified in the permit and does not reflect any <br />additional costs that may be associated with the adequacy review except for item No. 43 of this letter. The current <br />liability amount is $27,880,279.69. This is a difference of $2,110,609.89 which is accounted for in the <br />differences in unit costs and the issues discussed in item's No. 11 and 12 of this letter. The Division currently <br />holds a bond in the amount of $30,015,310.00. <br />The current decision date for the application is October 27, 2012. It is likely Trapper will need to submit a <br />request for an extension of the decision date. If you have any questions, please feel free to contact me at (303) <br />866 -3567 ext. 8120. <br />Sincerely, <br />Jared Ebert <br />Environmental Protection Specialist <br />Page 3 of 3 <br />