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economically unfeasible to promptly restore the affected <br />• structures to the condition they would be in if subsidence had <br />r not occurred. <br />Diminution of reasonably foreseeable use of structures <br />within the premit of adjacent area considers, as required by the <br />Regulations, the capability of the structures before and after <br />subsidence occurrence, to support the present usage as described, <br />giving consideration to soil and foundation characteristics, <br />topography, vegetative cover, surface hydrology and groundwater <br />hydrology. <br />As presented in Table 1.0, the predicted subsidence <br />indicates the potential for subsidence in all affected areas. <br />Since the potential for subsidence exists, the expected worst <br />• case damage which could result must evaluated under the <br />regulations. The evaluation of material damage or diminution of <br />reasonably foreseeable use for the Dorchester No. 1 Mine is <br />determined on a site-by-site or structure-by-structure basis. <br />Measures to mitigate damage to structures are discussed under <br />Section 3.0 "Subsidence Control Plan". <br />2.6.1 $~,nch House <br />The ranch house and accompanying buildings are located above <br />the main entries, which are designed as full support, in an area <br />which has not been previously undermined. Since the main entries <br />are of full support design, no subsidence will occur until pillar <br />recovery reaches this vicinity during the late stages of the mine <br />life. Aowever, once pillar recovery is performed under this <br />area, subsidence is expected to occur. <br />• The ranch buildings referred to in this report are situated <br />17 <br /> <br />