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• parameters for SEDCAD are shown in Attachment t, Tab 13. The section properties of the <br />trapezoidal channel are shown in Attachment C. <br />The reclaimed drainage channels will be topsoiled and revegetated according to Tabs 21 and 22, <br />respectively. <br />Peabody does not anticipate any problems with slides at Nucla Mine during the term of mining <br />and reclamation activities. Current highwalls at Areas No. 1 and 4 have been standing since the <br />mine went into temporary cessation in 1983 and have been shown to be stable. <br />It is necessary that surface coal mining activities be performed immediately adjacent to public <br />roads. Presently, a highwall and open pit exist at the fenceline of the north-south County Road <br />2650, County Road 124 in front of the former shop area and the east-west temporary county <br />road north of Area No. 1. In order to reclaim these mining areas and pits, mining activities will <br />need to be performed adjacent to these roads. Peabody intends to close portions of these roads <br />to public access when blasting or any other operations which could create a potential safety <br />hazard occur adjacent to these areas. If a slide should occur that could have a potential adverse <br />• effect on public properly, health, safety or the environment, Peabody will notify the CMLRD by <br />the fastest available means and comply with remedial measures as approved by the CMLRD. <br />• <br />20-5 <br />