Laserfiche WebLink
Coors Energy Company: Keenesburg Mine Permit No. C-81-028 <br />2018 First Quarter Pest & Disease Inspection <br />On March 30, 2018 Wayne Erickson (Habitat Management, Inc). inspected operational, <br />bonded reclaimed and shop areas at the Keenesburg Mine for plant pests, plant diseases <br />and noxious weeds that could or have affected establishment of vegetation on reclaimed <br />lands. The inspection was conducted by vehicular and pedestrian means. The following <br />areas were inspected: <br />• The office/shop/facility area; <br />• Topsoil stockpiles A-1 and B-1; <br />• B pit; <br />• The long-term spoil area; <br />• Bonded Reclamation; <br />• The permanent sediment pond; <br />• Mine roads; <br />• Undisturbed land within the permit boundary; <br />• and <br />• The Dugout. <br />These areas are depicted on Map 1. <br />Plant disease was not identified within the areas inspected. The vegetation has not been <br />adversely affected by plant pests. Areas affected by infestation or blight were not <br />identified during this inspection. No areas were observed where noxious weeds, plant <br />pests or plant disease had adversely impacted the normal growth and establishment of <br />vegetation on reclaimed lands, with the exception of cheatgrass infestations. <br />Ongoing vegetation monitoring has identified cheatgrass as a potential barrier to <br />successful revegetation of disturbed areas. Typically, cheatgrass infestations are more <br />widespread and dense on recently reclaimed lands. Cheatgrass infestations are being <br />treated by mine personnel with good success. Infestations on older reclamation areas <br />are scattered and less dense due to treatment efforts. <br />Cool -season species are beginning to grow in reclaimed areas in response to warmer <br />temperatures and recent moisture in March. Cheatgrass is noticeably present in some <br />areas. These areas should be monitored and treated in the fall depending upon the <br />extent of their growth during the upcoming growing season. <br />Habitat Management, Inc. 1 March 30, 2018 <br />