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At the end of year 2007, the year that coal production ended, there was a cumulative total of 848.6 acres <br />disturbed over the life -of -mine, including the Yoast Access Road (74.8 acres). An area of 6.25 acres of <br />disturbed lands were reclaimed, conversion of this area to an industrial/commercial postmining land use <br />was approved, and Phase I/II/III bond release was subsequently approved in March 2014. This reduced the <br />total disturbance area to approximately 842.4 acreas. <br />Permanent Structures and Features <br />A variety of structures will be left as permanent features on the postmining topography to enhance the <br />postmining land use. These features and structures include: <br />• Access roads (with associated ditches and culverts) <br />• Light -use roads (with associated ditches and culverts) <br />• Water wells <br />• Powerline and substation (owned by Yampa Valley Electric Assn.) <br />• Fenced shrub plots <br />• Sediment ponds and stockponds <br />• Grazing area and boundary fences <br />The locations of these structures and features are shown on Exhibit 20-2, Postmining Topography. <br />Attachment 20-1, Permanent Structures and Features, contains a list of permanent features, signed letters <br />from the landowners requesting the permanent features, and permanent road and pond demonstrations. <br />References Cited <br />D.C.A. D.C.A. Engineering Software, Inc. 1989. P.O. Box 955, Henniker, NH 03242 <br />P.D.S. Peabody Coal Company, 1300 S. Yale, Flagstaff, AZ 86001 <br />Schwab, P.J. 1998, SEDCAD 4 for Windows, Civil Software Design, Ames, IA <br />RN15-04 13 Revised 10/17 <br />