2023-12-26_GENERAL DOCUMENTS - C1981044

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Page 21 of 27 Variances from the 100-foot buffer zone for perennial streams have been granted by the Division upon finding: 1)that the original stream channel will be restored; 2)during and after mining,the water quantity and quality from the stream section from within 100 feet of the surface coal mining operation shall not be adversely affected; and 3)that the operation's reclamation plan provides for the reestablishment of the appropriate vegetation. IV. Topsoil Baseline soils information is presented in Section 2.04 and Exhibits 12 and 13 of the permit application. Maps 19 and 19a show the locations of the soil mapping units. The topsoil handling and management plan is given in Section 2.05.3 and Permit Tables 58 through 62 of the permit application. Final reclamation plans, including soils information,are given for the Williams Fork Strip Pit in Exhibit 24. Topsoil stockpile locations are shown on the structures and renewable resources map (Map 25). These locations are verbally described on Tables 58 through 62. Because of the lack of available topsoil in some of the previously disturbed areas,the utilization of overburden material as a plant growth medium has been approved. The applicant demonstrated that inclusion of vegetation cover in salvaged topsoil is necessary or desirable to ensure soil productivity consistent with the post-mining land use (4.06.2(1)). IV. Sealing of Drilled Holes and Underground Openings A detailed description of the sealing of underground openings may be found in Section 2.05.4 of the permit with a typical portal seal illustrated in Figure 57. Drill hole sealing may be found in Section 2.05 of the permit. All existing drill holes will be sealed in accordance with Rule 4.07. V. Use of Explosives MCM did not propose surface blasting in their mining operation. VL Coal Mine Waste Banks Three approved waste disposal sites have been established, as shown on the Structures and Renewable Resources Map (Map 25). One, The No 9 Coal Refuse Disposal area and the second, a solid waste disposal area and the refuse Pile. Map II below shows the location and extent of the three facilities. All areas have been reclaimed. Permit Map 25, Map 28 and Exhibit 21 of the permit contains a design report for the coal processing waste pile prepared by CTL/Thompson,Inc. Permit section 2.05 discusses the number 9 Portal area reclamation activities. The Division proposed to re-approve plans for use, construction, and maintenance of a coal mine waste disposal area(4.10.1(1))through MR54, Solid Waste Dump Site Cleanup. The operator utilized a rotary breaker and screen to size its product. The oversized material, defined as coal processing waste was hauled to both the original refuse pile and the No. 9 portal disposal site. The refuse pile comprised coarse reject material, rock that had been separated from the coal. The applicant disposed of underground development waste within the existing No. 9 Portal Excavation These portals have been Williams Fork Mines Prepared by: R ReiRey M.S. GISP C1981044 December 2023