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If subsidence has occurred in the area which has been affected by <br />the New Elk Mine during the past, no material damage to structures or <br />renewable resource land has occurred. No discernible effects can be noted <br />by any subsidence of the old workings of the New Elk Mine and is apparent <br />by the stable condition of the Colorado & Wyaning Railroad and Colorado <br />Highway 12. <br />Generally, the structures which might be affected would expect <br />minimal damage if subsidence occurred. The effect on the renewable <br />resource lands located in the Pun3atoire River area is expected to be very <br />slight also. Subsidence of the surface at the New Elk Mine operation has <br />not created any significant or apparent impacts on the renewable resource <br />lands or the structures located in the areas which have been affected. WFC <br />does not anticipate any significant or additional changes and effects of <br />subsidence at the New Elk Mine. <br />7tie post-mining and pre-mining land uses of the permit area are <br />~- identical and are described in detail in Section 2.04.3. The land use is <br />shown on Map 4, Fremine Land Use, and Map 15, Surface Disturt»nce and <br />Postmining Land Use - East Portal and Map 16, Surface Disturbance and <br />Postmining Land Use - i~kst Portal. <br />Subsidence prediction calculations have been canpleted by WFC for <br />areas which will be mined during the remaining life of the operation and <br />are shown in Exhibit 24, Subsidence Control Plan. These calculations <br />indicate that maximum vertical surface subsidence will be 3 to 4 inches. <br />Since the type of subsidence which is expected is trough, minimal <br />horizontal movement is expected. In fact, the lack of subsidence features <br />at the New Elk Mine in areas which have been previously mined positively <br />indicates that continued mining will result in no significant surface <br />subsidence. <br />2.05-91 <br />