Laserfiche WebLink
• which will be used during bond release evaluations. In addition, statistical adequacy will be <br />demonstrated so the information could be utilized for the various phases of bond release although <br />statistical summaries will accompany any data submitted to the Division. Standards for sampling <br />for bond release will be those Outlined in Guideline Regarding Selected Coal Mine Bond Release <br />Issues, CDMG 1995. <br />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 occur <br />• in the vicinity of the mine site. The results of any rill and gully monitoring will be documented in the <br />administrative files located on site at the New Horizon mine office. Also contained in the files will <br />be a map showing the location of those areas requiring repair. When the occurrence of excessive <br />rills and gullies necessitates implementation of the following rill and gully plan, CDMG will be <br />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 rectify <br />the erosional problem. <br />One of, or a combination of, the following options and corrective methods will be employed. <br />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 orwider. The channel bottom will either be seeded, <br />• (Revised s/oo> Attachment 2.05.4(2)(e)-27 <br />