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<br />..~ <br />1.0 INTRODIICTIOA* <br />New Castle Mines proposes to place underground development rockt <br />waste at the portals oP the twin access tunnels at their Coal Ridge <br />~1 Mine in Garfield County, Colorado, in order to expand the I <br />current pads, to provide turning and working area at the tunnel <br />portals, and in order to dispose of the material excavated. This <br />report evaluates the stability of the proposed portal pads, using <br />the format of the Colorado Mined Land Reclamation Division's <br />"Regulations of the Colorado Mined Land Reclamation Board for Coal <br />Mining", dated August 30, 1980 (latest revision 2/17/90). <br />i <br />Adrian Sro6IL Consultants -1- 11<5/9005.1 <br />