Response from the United States Geological Survey (USGS) to take part in the environmental review of the Resolution Copper Project and Land Exchange Environmental Impact Statement (EIS) as a participating agency.
This Addendum to the Original TIA (TIA Addendum) also further explores possible mitigation measures and evaluate crash rates at the intersections of N Smeltertown Road/Main Street, Silver King Mine Road/US 60 and Main Street/US 60.
This memo will focus directly on answering this question and provide graphical output from the predictive model to demonstrate the hydraulic containment of the groundwater through the years after mine closure.
This report summarizes the results of the geotechnical and hydrogeological site investigations undertaken in 2018 and 2019 to further the current understanding and/or confirm foundation and seepage conditions for the site.
The January 2021 Rescinded draft ROD explains the Tonto National Forest’s rationale and documents the Tonto’s proposed decision to authorize uses of National Forest System land by issuing a road use permit and special use authorizations for pipeline and power line corridors associated with the project.
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.
