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• Run Off Calculations and Sediment Pond <br />Appendix Kl and K2 are memos from Dr. D. B. McWhorter, Hydrologist, providing <br />information on the runoff estimate for the mining site, also, sediment production, sediment <br />pond size, and diversion capacity. Appendix K3 is an engineering report with drawings <br />prepared by Wright- Mclaughlin Engineers on sediment pond and drainage ditch designs. <br />Since the sediment level in Pond #2 is practically nothing after ten years of use, and since <br />this pond has never had measurable water in it for more than twenty-four hours except <br />during the unusual precipitation events of 1995, and has never discharged, all other ponds <br />have been removed from the plan. <br />Mans <br />Listed below pursuant to Rule 2.05.3, are maps included in the Appendix to furnish <br />additional information on the reclamation and closure plan for the mine. <br />* Surface Features Map (Appendix Ml) <br />* Recent Permit Area Map (Appendix M2) <br />* Post Mining Reclamation Contour Map (Appendix Q) <br />* Coors Site Plan -Vegetation Sampling Locations (Appendix Q) <br />* Final Grading and Drainage Plan (Appendix Q) <br />• Facilities Removal <br />The following facilities will be removed as time and use dictate. All unsalvageable <br />portions of these facilities will be buried at least four feet below final grade (AOC), the <br />area topsanded and revegetated. <br />* Office, shop and warehouse <br />* Equipment parking lot <br />* Drainage ditches and ponds <br />* Sewage treatment facility <br />* All roads <br />* Electrical distribution system <br />* Potable water system <br />* Explosive storage facilities <br />* Monitoring wells <br />Drainage System <br />Please See Appendix K "Drainage Plan II" for details. <br />• Diversion ditches and the sediment pond have been constructed to control run off from the <br />permit area. Diversion ditches have been constructed along the access roads and around <br />105 5/96 <br />