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Coors Energy Company: Keenesburg Mine Permit No. C-81-028 <br />2015 Fourth Quarter Pest & Disease Inspection <br />On October 27, 2015 Danny Kipp of Coors Energy Company and Wayne Erickson of <br />Habitat Management, Inc. inspected operational, bonded reclaimed and shop areas at <br />the Keenesburg Mine for plant pests, plant diseases and noxious weeds that could or <br />have affected establishment of vegetation on reclaimed lands. The inspection was <br />conducted by vehicular and pedestrian means. The following 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 (Areas 23, 25, 27, 30 and 31); <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. To date vegetation growth <br />during this growing season has not been adversely affected by plant pests. Areas <br />affected by infestation or blight were not identified during this inspection. No areas <br />were observed where noxious weeds, plant pests or plant disease had adversely <br />impacted the normal growth and establishment of vegetation on reclaimed lands, with <br />the exception of cheatgrass infestations. <br />Ongoing vegetation monitoring has identified cheatgrass as a barrier to successful <br />revegetation of disturbed areas. The mine has performed pre -emergent herbicide <br />treatments on cheatgrass this fall in reclamation units 25, 29, 30 and proposed <br />reclamation unit 34. Inter -seeding of the approved seed mixture is also planned for this <br />fall in the reclamation to enhance perennial plant establishment and culturally control <br />cheatgrass. <br />Habitat Management, Inc. 1 October 29, 2015 <br />