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.
The decision is to adjust the 2007 Interim Guidelines for Lower Basin shortages and coordinated operations of Lake Powell and Lake Mead as described under Section IX of this 2024 Near-term Colorado River Operations ROD.
The following two new species of land snails were taken on a collecting trip in Arizona during October 1949 by M. L. Walton and the author. They belong to the families Camaenidae and Polygyridae, respectively.
An extraordinary drought in the West in drying up the Colorado River and draining the nation's largest reservoirs - Lake Mead and Lake Powell. And amid the overuse of the river and the aridification of the region, the federal government is implementing new mandatory water cuts and asking states to devise a plan to save the water basin.
This updated memo quantifies Resolution’s estimated Scope 2 (indirect) GHG emissions associated with Resolution’s annual electricity use and accounts for the following GHGs: CO2, methane (CH4), and nitrous oxide (N2O).
This land and resource management plan (referred to as the forest plan throughout this document) guides the Tonto National Forest in fulfilling its stewardship responsibilities to best meet the current and future needs of the people and communities we serve.
The purpose of this process memorandum is to provide a consistent acreage, broken down by project component or facility, alternative, and ownership (private, state, federal).
This report summarizes meteorological measurements collected at the Resolution Copper Mine monitoring system. The purpose of the monitoring program is to provide the measurements necessary to establish existing meteorological conditions at the proposed site of the Resolution Mine in support of a future air quality permit application.
This plan describes the procedures followed by RCM for the WPS activities to prevent, control, and mitigate releases of oil and petroleum products to the environment at its RCM WPS located near the Town of Superior, in Pinal County, Arizona.
A raptor survey was conducted on the approximately 1,224-hectare Federal Parcel, in the Tonto National Forest. The purpose of this survey was to determine which raptor species could be confirmed on the Parcel.
