Tierra Group represented Oracle Ridge Mining as the Qualified Person for portions of the feasibility-level design including the Dry Stack Tailings Storage Facility (TSF) Design, Site-Wide Stormwater Management, Water Supply Pipelines, Haul Road and Access Road Design Improvements, and the Mine Closure Plan. Project included a feasibility-level Dry Stack TSF design including the design basis, description of TSF components, engineering design, stacking plan, construction quantity estimate, and drawings. All components of the design complied with Arizona Department of Environmental Quality (ADEQ) best available demonstrated control technology (BADCT) requirements.