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In May, 1986, Yampa Mining submitted Technical Revision 51, to change the post-mining topography to accommodate 462,000 LCY of overburden by widening the ridge on the west side of the permit area. In September, 1986, Technical Revision 52 was submitted to address the temporary and permanent drainage structures required for the post-mining topography, Both revisions were approved by the Division. These revisions resulted in slopes less than 20% grade, three permanent drainage ditches and seventeen new temporary diversion ditches. The operation is in compliance with the requirements of this section. XVII. Special Categories of Mining - Rules 2.06, 4.22 throw h 4.29 The only special category of mining which applies to the Hayden Gulch Mine is: A. Coal processing plant and support facility not located at or near the mine site. The loadout facility, two miles southeast of Hayden, is seven miles northeast of the mine site. The facility has 134 permitted acres under Permit No. C-80-003, of which fifty-four (54) are disturbed. The loadout is not being reclaimed at this time in anticipation of future development of coal reserves adjacent to the shop/office area. The proposed operation is in compliance with the requirements of this section. XVIII. Coal Processin Waste and Non-Coal Waste - Rules 2.05.3(8), an There is no coal processing waste produced at the Hayden Gulch Mine as noted in Section 2.05.3(8). A sanitary landfill was constructed west of the facilities area, but was never used. It has been reclaimed and revegetated. Non-coal waste was backfilled into the main pit above the water table at various times during the life of the mining operation. Consequently, the operation is in compliance with the requirements of this section. XIX. Mine Facilities, Coal Handlin Structures, Sup ort Facilities Roads mpoun ments an rarnage - u es and A. P1ine Facilities, Coal Handling Structures, Support Facilities The mine facilities, coal handling structures, and support facilities sections of the permit application have been reviewed by the Division. The mine facilities and support facilities portions of the permit application can be found in Section 2.05.3(Volume I), Appendix E (Volume III), Appendix N (Volume V), and Appendices 0, P, and Q (Volume VI). Information concerning coal handling facilities can be found in Section 2.05.3 (Volume I). -30- t --