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This material is protected under copyright law and will not be posted to this website.

This study considers a conservative condition to estimate the shear displacement occurring in the faults.

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This material is protected under copyright law and will not be posted to this website.

Comments received on the DEIS, including those from the U.S. Environmental Protection Agency, questioned the appropriateness of stopping the analysis at these locations and not assessing impacts further downstream, particularly to community water supplies. In response, Section 3.7.2 of the FEIS has been modified to discuss further downstream impacts.

The purpose of our current Project Memorandum is to provide specific responses to those review comments directed to LCI. Specifically, BGC’s comments to LCI pertain to LCI report “Site‐Specific Seismic Hazard Analysis and Development of Time Histories for Resolution Copper’s Proposed Skunk Camp Tailings Storage Facility, Southern Arizona”,

The purpose of this memorandum is to summarize the available information supporting this approach, some considerations in managing pyrite tailings, the available guidance and best practice, other examples of subaqueous tailings disposal, and to generally comment on the applicability for this Project.

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Materials that meet the criteria of Freedom of Information Act exemptions are not posted on this website. Culturally sensitive materials not posted here fall under this criteria.

In June 2022, the Forest Service received additional comments from a review of the January 2021 rescinded FEIS conducted by three Bureau of Land Management water specialists. These comments expressed understanding for the approach described above but suggested expanding the analysis to include the total number of wells impacted. The purpose of this process memo is to provide that analysis.

We report results of a ten year study to understand the distribution, breeding and migration of the monarch butterfly (Danaus plexippus) in Arizona.

The purpose of this addendum is to update the process memorandum dated October 28, 2020, titled “Cumulative Effects Analysis Overview and Screening by Resource” (Newell et al 2020). The original process memo served to outline the methods and screening results used for the analysis of cumulative effects within the Environmental Impact Statement (EIS) prepared for the Resolution Copper Project by disclosing:Approach for addressing past and present actions in the EIS.