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Light -Use Roads <br />At the NI-IN Mine, light -use roads will only be used on an intermittent basis for purposes other <br />than transportation of coal including, but not limited to, roads used for monitoring and periodic <br />maintenance of monitoring facilities and reclamation areas, intermittent equipment passage from <br />one mine area to another mine area, or other occasional use. <br />General Requirements. WFC will construct, maintain and reclaim light -use roads to minimize <br />erosion and siltation, air and water pollution and damage to public and private property. To the <br />extent possible, using the best technology currently available, light -use roads will not cause <br />damage to fish, wildlife, or related environmental values and will not cause additional <br />contributions of suspended solids to stream flow or to runoff outside the permit area. Any such <br />contribution shall not exceed the limitations of State or Federal law. <br />The light -use roads at the mine site will be designed with appropriate ditches, grades, and <br />culverts to control erosion and runoff. All light -use roads will be constructed basically "on- <br />grade" and the location will be partially limited by the grades of the existing or postmining areas. <br />Stream fords will not be used during construction of roads unless approval is first obtained from <br />the regulatory authority. <br />Location WFC will locate light -use roads on ridges or on a stable slope in order to minimize <br />erosion. No part of any light use road will be located in the channel of an ephemeral stream <br />where the upstream watershed is larger than one square mile and in intermittent or perennial <br />streams unless specifically approved by the DRMS. Stream fords of an ephemeral stream when <br />the upstream watershed is larger than one square mile and intermittent or perennial stream will <br />be approved by the DRMS before construction proceeds. All other stream crossings will consist <br />of culverts in flowing streams, consistently wet areas, and in ephemeral channels as necessary to <br />allow passage and to minimize disturbance of the hydrologic balance. Light -use roads will <br />utilize culverts designed to safely pass the 10 -year, 24 -hour precipitation event. Ditches and <br />drainage control will be established during construction and maintenance of the roads to <br />minimize erosion and to assist traffic passage. <br />Section 2.05.3(3) Page 11 November 2011 <br />