2023-01-13_PERMIT FILE - M2022034 (2)

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Page 4 Due to availability of water and the presence of appropriate irrigation infrastructure on Site,seeding will take place between December 1 and May 1.Seeds will be planted immediately following the completion of mining activities to decrease competition from noxious weed species. NOXIOUS WEED MANAGEMENT Pursuant to Rule 3.1.10(6),methods of weed control shall be employed for all prohibited noxious weed species and whenever invasion of a reclaimed area by other weed species seriously threatens the continued development of the desired vegetation.Korwell will plant the desired seed mix immediately following the completion of mining operations to discourage establishment of noxious weeds.If established quickly,native plants will help to suppress weed growth. Mitigation of weed ingress during mining operations will include equipment washing or cleaning before arriving at the site and utilizing and using certified weed-free seed mixes and mulching materials(as applicable)during all reclamation operations.After native grasses are established,the operator will utilize integrated noxious weed management techniques dependent on the site conditions and nature of infestation.These techniques could include a combination of hand pulling, mowing,and spot treatment with appropriate herbicides. EROSION CONTROL The project will be authorized under a Construction Stormwater Discharge Permit(COR400000)from the Colorado Department of Public Health and the Environment(CDPHE).A site-specific Stormwater Management Plan(SWMP)has been designed for this project.Erosion control Best Management Practices(BMPs;e.g.,erosion control blankets,straw bales,straw wattles,silt fence)will be installed to limit erosion and sediment transport from reclaimed areas,as needed.In accordance with section 3.1.6(3)of the Rules,all surface areas of the affected land,including spoil piles,shall be stabilized and protected so as to effectively control erosion. Stormwater BMPs will be installed and inspected per CDPHE permit requirements. WILDLIFE MITIGATION Reclamation efforts to plant native grass species will encourage pollinator and ground-nesting wildlife habitat. TRASH, DEBRIS,&MATERIALS HANDLING Pursuant to section 5.5.2 of the Rules,vegetation will be removed from the site and disposed or dispersed before mining activities begin.All trash and debris will be removed and properly disposed. Debris will be removed from the site via the access roads to avoid compaction of soil. SPILL REPORTING In accordance with section 3.1.13 of the Rules,the operator will report any spill of hazardous or toxic substance to the Office of Mined Land Reclamation(Office)within 24 hours. SCHEDULE Pursuant of Rule 6.4.4(e),reclamation efforts will commence following the completion of each of the four mining phases. Mining activities are scheduled to occur throughout the winter of each year and