Laserfiche WebLink
Erosion/sedimentation was not an issue on any of the sites. The surface roughness created <br />during reclamation adequately retained precipitation and sediment on the sites. <br />2010 Soil Borrow Sites <br />These sites (HR/CR 65 SW side of intersection, and RP -5a Subsoil top) were redisturbed <br />and reseeded in 2010. Both sites showed excellent seedling establishment with the top of <br />RP -5a being exceptional. As with all the local vegetation, growth was severely limited by <br />the dry spring. <br />Other Observations <br />Concerns were previously expressed over the potential for forage kochia spreading and <br />becoming more aggressive than desired. Observations in 2012 indicate that this species <br />continues to behaving well. It is showing little signs of spreading beyond the intended sites <br />and does not appear to be forcing other perennial vegetation out. It is, however, competing <br />well with cheatgrass and has become established on Refuse Pit #1 where cheatgrass has <br />been a long term problem. <br />Recommendations <br />The reclaimed areas appear hydrologically stable and generally in good condition. <br />Cheatgrass continues to be the primary problem impacting long term vegetation success at <br />many of the sites. Further investigation into means for long term control of cheatgrass is <br />warranted not only for this mine site but for many mines throughout the arid West. <br />Anticipated Reclamation Activities for 2013 <br />Due to the scheduling of the current longwall panel and mine gas monitoring needs we do <br />not foresee any permanent reclamation activities in 2013. Some interim reclamation may <br />occur on new drill sites to help with site stabilization. <br />