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indicates that there are no significant aquifers within the cave height. Outcrop <br />observation and examination of drill holes in the area (see pages 31 and 37) <br />indicate that there are no significant sandstone beds within 75 feet of the coal <br />seam. Those beds within 100 to 150 feet of the coal are generally fine to very <br />fine-grained with calcite cement, and are probably capable of transmitting very <br />little if any water. Sandstones higher in the section are coarser and thicker and <br />some of these units may be capable of transmitting water, However, these are <br />fresh-water stream channel sandstones, and therefore can be expected to be highly <br />variable in thickness, lateral extent, grain size, sorting and matrix content, and it <br />is doubtful that any are significant water-bearing unite. In any case, as all beds <br />dip northeast toward the axis of the Picennce Creek basin, none of these unite have <br />any affect on the flow of Hubbard Creek. What water has been encountered in the mine <br />(see discussion on mine inflow above) has been pumped into old workings where it <br />percolates slowly back into the groundwater system. <br />The evidence discussed above indicates that mining and reclamation <br />activities at Blue Ribbon should have little or no affect on surface or groundwater, <br />• either during mining or after mining has been completed. <br />1231v <br />(Rev. 1-13-82) <br />