2024-04-10_GENERAL DOCUMENTS - M1987012

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Bureau of Land Management Decision Record San Luis Valley Field Office DOI-BLM-CO-F030-2024-0005-EA • Topsoil, overburden will be removed and stockpiled. Stockpiles will be seeded with yellow sweet clover to prevent erosion of the piles. • The operation will use existing roads. • Avoid soil-disturbing actions during periods of heavy rain or wet soils. Apply travel restrictions to protect soil and water. • Use suitable measures to avoid or minimize contamination, inter-aquifer exchange of water, floodwaters from contaminating the aquifer, and infiltration of surface water. • Slopes in the areas of drainages will be kept at or shallower than 2H:1 V in accordance with the Storm Water Discharge Plan. • No blasting to be conducted during the life of the operation • Reclamation to occur concurrently with excavation to limit the disturbed areas. • All head-cuts should be rehabilitated immediately after completion of mining at upper most end of the sites (see appendix C). Migratory Birds • In compliance with the Migratory Bird Treaty Act,vegetation disturbance/removal should be scheduled outside of the most active bird breeding/nesting season time of May 15-July 15. If vegetation disturbance/removal must occur during this time period,then a qualified biologist must survey the area for nests, including ground-nesting species, 7-10 days prior to commencement of vegetation disturbance/removal actions. The operator must contact the BLM at least 3 weeks prior to the planned vegetation disturbance/removal to request a clearance survey to be conducted by the BLM Wildlife Biologist. If any active nests are found, an appropriately sized buffer area must be established and maintained until the young birds fledge, as determined by BLM Wildlife Biologist. As the above dates are a general guideline, any active nests that are observed outside this range must be avoided as described above. Cultural Resources • The project area has been intensively surveyed for cultural resources pursuant to Section 106 of the National Historic Preservation Act. The project has been designed to avoid historic properties. The area within the Old Spanish Trail corridor will be recontoured during reclamation to match its current topography. • Post-Review Discoveries: Any cultural resource(historic or prehistoric site or object) encountered by the operator, or any person working on their behalf in connection with operations, shall be immediately reported to the Authorized Officer. The operator shall suspend all operations in the immediate area of such discovery until written authorization to proceed is issued by the Authorized Officer. Realty • The original deeded easement granted to the United States has been mined through. The deed allows for a reroute so Southway will reestablish an alternate route suitable to BLM in order to public access to BLM surface estate east of the private property. This route will be surveyed and acquired by the BLM. The new route will remain open through mining for public access and following reclamation and cannot be destroyed. If another 2