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Access Road. At the Yoast Mine, [here are currently no access roads. If at a later date <br />an access road is needed, [hey will be constructed based on the following information. <br />General Requirements. Peabody will construct, maintain and reclaim access roads to <br />minimize erosion and siltation, air and water pollution and damage to public and private <br />property. To [he extent possible, using the best technology currently available, access <br />toads will not cause damage io fish, wildlife, or related envl ronmen[al values and will <br />not cause additional contributions of suspended solids to streamflow or to runoff outside <br />the permit area. Any such contribution shall not be in excess of limitations of State or <br />Federal law. The locations of access roads will be shown on Ex hl bit 12-1 and a typSGal <br />cross section Ss shown on Eigure 13-5. <br />The access roads at the mine site will 6e designed with appropriate ditches, grades, and <br />culverts to control erosion and runoff. P11 access roads will be constructed basically <br />"on-grade" and the location will be partially limited by the grades of the existing or <br />postmining areas. Stream fords will not be used during construction of roads unless <br />app [oval is first obt alned from the regulatory authority. <br />~• Location. Peabody will locate access roads on ridges of on a stable slope in order to <br />minimize erosion. No part of any access road will be located in the channel of an <br />epheme tai stream where the upstream watershed Ss larger than one square mile and rn <br />intermittent or perennial streams unless specifically approved by the DS vision. Stream <br />fords of an ephemeral stream when the upstream watershed is latget than one square mile <br />and intermittent or perennial stream will be approved by the Di vi Sion before construction <br />proceeds. All other scream crossings will consist of culverts in flowing streams, <br />consistently we[ areas, and in ephemeral channels as necessary to allow passage and to <br />minimize disturbance of the hydrologic balance. Access roads will utilize culverts <br />designed to safely pass the 10-year, 24-hour precipitation event. Ditches and drainage <br />control will be established during construction and maintenance of the toads to minimite <br />erosion and to assist traffic passage. <br />Design and Construction. The design of the access roads incorporate the demand for <br />mobility and travel efficiency, based on the geometric criteria appropriate fot the <br />anti c'_pat ed volume of traffic, weight and speed of the ve hr cl es to be utilized. <br /> A <br />d <br />ill b d <br />i d d i <br />l th the <br />w <br /> s w <br />ccess roa e es <br />gned and constructe of reconstructe n comp <br />iance i <br /> following standards in order to control erosion and disturbance of the hyd rolegic balance. <br />23 Revisetl 06/25/96 <br />