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Mayo and Associates, LC <br />~. Member, which is sepazated from mine working by the Storrs Member and the <br />intervening Marcos Shale, the potential impact of mining activities on spring discharge <br />Table 3 Hydraulic conductivities of sandstone channels, shale, and shoreline <br />sandstone of lower Mesaverde Group rocks. <br />' <br /> <br />LocationlMine Sandstone Channel <br />vertical horizontal <br />(ft/day) (ft/day} Shale <br />vertical horizontal # sites method Reference <br />(ft/day) (ft/day} <br /> Trail Mountain 3.8 x 10-31.3 x 10-2 1.0 x 10-7 1.2 x 10-6 7 permeameter Lines 1985 <br /> Various Wasatch Plateau 2.4 x 10-5 permeameter Mayo et al., 2003 <br /> Foreshore and Shoreface S hore line Sandstone <br /> vertical horizontal Formation/ <br /> (ft/day) (ft/day) Member <br />~ Trail Mountain 4.3 to 37.2 x i0-2 Spring Canyon 2 slug test Semborski, 1994 <br />~ 3.5 x 10-2 Spring Canyon 1 slug test Bills 2000 <br /> Co-Op 1.2 to 14.6 x 10-2 Spring Canyon 3 slug test Earthfax Eng. 1992 <br /> 0.8 to 3.1 x 10-2 Storrs 2 slug test Earthfax Eng. 1992 <br /> 2.5 to 73.2 x 10-2 Panther 3 slug test Earthfax Eng. 1992 <br /> Genwal 3.8 to 6.4 x 10-3 Spring Canyon 3 slug test Mayo and Assoc., 1997b <br /> 5.4 to 6.4 x 10-3 Panther 1 Mayo and Assoc., 1997b <br /> Various Wasatch Plateau 1.0 to 55 x 10-2 Star Point 108 permeameter Holman, 2001 <br /> West Elk 2.4 to 16.1 x 10-4 Rollins 11 permeameter Mayo and Koontz, 2000 <br /> 3.0 to 13.0 x10-2 Rollins 4 permeameter Mayo and Koontz, 2000 <br /> <br /> <br /> <br />~. <br />Evaluation of Potential Cnoundwater Inflows <br />Associated with E Seam Mining, <br />West Elk Mine, Somerset, Colorado <br />21 <br />February 24, 2004 <br />