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• • <br />Table C <br />Table G-25 Modified In Response To 784.14(6)(1) <br /> <br />B <br />v <br /> <br /> <br /> <br />1 d <br />t ~ <br />HYDRAULIC PROPERTIES AND MAXIMUM FRACTURE HEIGHT OF COAL AND OVERBURDEN <br />• <br /> (a) (b) (c) (d) (e) <br /> Coal Maximum Average Average <br />Coal Coal Hydraulic Fracture Amount of Sandstone <br />Seam Transmissivity Grnclt.ent Fleight Sandstone Permeability <br />G 1.3 gpd/ft 0.07 48 ft. 23 ft. 4.3 gpd/ft2 <br />P 119 0.13 40 22.5 4.3 <br />J 6.9 0.01 48 43 4.3 <br />FF 130 0.10 32 20 4.3 <br />(a) Derived from 1979 hydrolo <br />summarized in Table G-20. <br />(b) Data used is presented in <br />Table E. <br />(c) Calculated using formula: <br />tic testing program outlined in Section G.2.2 and <br />Raw data in Appendix B of Section G.5.0. <br />Exhibit G-1, Appendix C of Section G.5.0, and <br />h = 2b x ~~//--~dj, <br />1 <br />where, h = height of cave to fill void, feet <br />b = thickness of mined coal seams, feet (see Section S) <br />d = density of roof beds in place <br />d = density of collapsed roof beds <br />d~'d1 is assumed to be 0.66 <br />(d) Calculated from examination of electrical logs of all holes on mine <br />property. (See Exhibit 9.17, Well Completion Diagrams in Volume 10). <br />(e) Assumed from aquifer test in F.M. Fox report contained within the Thorne-Leaf <br />Study Appendix A of Volume 9. <br />472NCC02 <br /> <br />