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l• inventory of resource lands in the proposed permit area is <br />presented in Section 2.2 of this report. Detailed descriptions of <br />the resource lands are presented in Section 3.1 of the permit <br />application. <br />Planned mining and subsidence are not expected to have any <br />significant impact on any of the current land uses. Post-mining <br />land use is expected to remain the same as the pre-mining land <br />use. <br />3.2 PREDICTED SUBSIDENCE PHENOMENA <br />This section describes predicted subsidence phenomena <br />expected to occur as a result of 5-year mining in the proposed <br />permit area. The mining method is briefly described. The site <br />parameters which may affect subsidence development are summarized. <br />Local mining-related subsidence experience is reviewed. <br />Predictions for maximum subsidence and angle of draw are developed <br />based on the potential influence of the site parameters that may <br />'• impact subsidence development. <br />The subsidence predictions presented in this section <br />represent an engineering analysis based on the specific mining, <br />geologic, hydrologic and surface enviroments in the proposed <br />5-year mining area of the Coal Ridge No. 1 Mine. It should be <br />noted that subsidence responses related to extraction of a <br />pitching coal seam "have been little researched, and the critical <br />factors affecting them are still largely unknown" (Kratzsch, 1983, <br />p. 182). <br />The subsidence predictions developed for the Coal Ridge No. 1 <br />Mine are designed to provide conservative upper limits for maximum <br />subsidence and angles of draw. They are based on British and <br />European experience modified by Mining & Subsidence Engineering <br />Company (MSE) to reflect existing subsidence response data from <br />the western United States. <br />u <br />page 13 <br />