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• Soutlfidd Minc Minar Rtvision Request No. 10 -South Fan lnstallarion • 10 has occurred. In addition, the total proposed surface disturbance of approximately 0.46 acres is small relative to both the Southfield disturbance area and the associated drainage area. Both the existing Monarch No. 4 mine workings and the planned Southfield workings, which will extend into adjacent underground areas, slope to the northwest away from the surface. There is no evidence of groundwater discharge to the surface from the underground workings and none is anticipated. EFCI plans to establish containment ditches and berms prior to site grading or other surface disturbance. Berms will be established upgradient from both the fan installation and cut material stockpile. The berm above the fan will protect the f~a` i~ns~ llaryti~on~i ro~mM ~p~~e d +ibQge~ diverting associated • runoff to the adjacent containment ditch. The berm upslope from the cut material stockpile vyill,intercept and divert runoff from undisturbed upslope DorA2C. areas. Containment ditches and berms will be used to control disturbed area runoff from the fan installation, the lower portion of the existing power line access road, and the cut material stockpile. The locations of these drainage control structures are shown on the South Mine Fan Installation Map, (Map 301. Hydrologic calculations used to size the proposed drainage structures are included with this application package as inserts to Exhibit 19, Drainage and Sediment Control Plan. Given the noted considerations which address all applicable exemption requirements of Rule 4.05.213), coupled with the limited precipitation and runoff in this area, EFCI requests approval of a small area exemption for the proposed disturbance. Detailed justification for the small area exemption • request is provided for insertion in Exhibit 19, Drainage and Sediment Control Plan. A Q /nt. • P.O. Bar 77001 B • Steambam Spnngr, Cab,odo &7177 • fJOJ)8A-6760