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8.0.Regrading or Stabilizing Rills and Gullies - All Areas <br />After an area has been backfilled, graded, and topsoiled, Western Fuels Colorado will monitor the <br />area following any heavy spring snow melt or heavy rains. If, upon observation, excessive rills and <br />gullies do occur or there is an indication they may occur in areas that have been reclaimed, closer <br />observation of the area will begin to determine, if possible, the cause of the gulling. The natural <br />geomorphic processes of the reclaimed area will be given a great deal of consideration; taking into <br />account the slope and climatic conditions of the site. <br />Monitoring for rills and gullies will be carried out on a periodic basis; the monitoring being geared <br />to those periods after spring snow melt and following any significant storm events which may <br />occur in the vicinity of the mine site. The results of any rill and gully monitoring will be <br />documented in the administrative files located on site at the New Horizon mine office. Also <br />contained in the files will be a map showing the location of those areas requiring repair. When <br />the occurrence of excessive rills and gullies necessitates implementation of the following rill and <br />gully plan, CDMG will be notified prior to any corrective action being taken. <br />After observation, WFC will have a few options to correct the situation. These options will be a <br />direct result of studying the situation and selecting the option that, in the opinion of WFC, will <br />rectify the erosional problem. <br />One of, or a combination of, the following options and corrective methods will be employed. <br />8.1 Improved Channel If it is determined that the topography of the regraded area is such that <br />drainage is concentrated in a particular area, then this area will be improved to accept the runoff. <br />The drainage bottom or channel will be reshaped if needed. This will be done with either a motor <br />grader or dozer, making the channel flatter and or wider. The channel bottom will either be <br />seeded, covered with erosion matting and seeded, or rip- rapped with energy dissipating rocks. <br />The method used will of course depend on site conditions. Continued observations will be made <br />of this area for problems or necessary maintenance. <br />8.2 No Defined Channel On slopes where no swale or defined channel exists, a number of <br />operations will be performed, depending on the extent of the erosion. The area will be disced and <br />PR -06 June 2010 2.05.4(2)(e) - 67 <br />