Subsidence at the Resolution Copper (RC) project is predicted to occur in a typical slow and gradual process from approximately year 6 when the cave from the underground mining is expected to reach surface.
The purpose of this process memorandum is to detail the process steps undertaken during the alternatives development process, related to evaluation of alternative mining techniques.
Cultural resources assessment for the proposed trenching within the Gila River streambed at Managed Aquifer Recharge (MAR) Site 5 in District 3 of the GRIC, Pinal County, Arizona.
At the public hearings held during the comment period for the DEIS, commenters expressed concern over potential schedule delays and technical complications with the block cave mining technique proposed for use in the underground operation at the Oyu Tolgoi mine.
The purpose of this process memorandum is to outline the methods and screening results used for the analysis of cumulative effects for the Resolution Copper Project and Land Exchange environmental impact statement (EIS).
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This study uses simulation-based life cycle assessment (LCA) together with a commercial flowsheet simulation program to compare several copper smelting technologies against each other when producing metallic blister copper from sulfide copper ore.
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Contrast of Phoenix and Tucson’s different approaches to urban water management—Phoenix leaning heavily on supply augmentation and growth-first policies, while Tucson adopted earlier and more aggressive conservation strategies—highlighting how these divergent paths shape their sustainability and resilience in a water-scarce desert environment
As the worsening drought crisis continues to impact communities across the West, the Department of the Interior today announced urgent action to improve and protect the long-term sustainability of the Colorado River System, including commitments for continued engagement with impacted states and Tribes.
