Chris Gregory

This technical memorandum was prepared to document preliminary results of fate and transport modeling using additional seepage controls to reduce seepage rates developed for Resolution Copper (RC) tailings storage facility (TSF) alternatives.

This technical memorandum has been issued to correct for tailings seepage rates that were recently modified in the steady-state models for tailing storage facility (TSF) Alternatives 2 and 3 (M&A 2018) per the direction of the United States Forest Service and the groundwater working group.

This technical memorandum was prepared to document groundwater transport modeling and results for TSF Alternative 5—Peg Leg.

This technical memorandum was prepared to document groundwater transport modeling and results for TSF Alternative 4—Silver King Filtered.

This technical memorandum was prepared to document a preliminary analysis of allowable seepage from the tailings storage facility (TSF) alternatives currently being considered by Resolution Copper (RC).

Email Address Created for Land Exchange Questions

The Southwestern Region Office of Lands and Minerals Management is overseeing and administering the land exchange and appraisal process which includes the 2,422-acre Oak Flat Federal Parcel. All questions about the land exchange and appraisal process should be emailed to SM.FS.rcexinfo@usda.gov

Objection Period Ends March 1

Interested parties who previously submitted formal comments about the project have until March 1 to file an objection to the Tonto’s proposed decision.

For more info, view TNF News Release.

Programmatic Agreement Info

To comply with Section 106 of the National Historic Preservation Act, the Tonto National Forest developed a Programmatic Agreement (PA) and included it in Volume 5, Appendix O of the final EIS. The PA was created in cooperation with the Advisory Council on Historic Preservation, the State Historic Preservation Office, tribes and other consulting parties. The PA contains an agreed upon process for identifying, evaluating and addressing adverse effects to historic properties associated with this undertaking.

To review Volume 5 and the PA, Download Vol 5 PDF, 27 MB.

Forest Service Point of Contact

John Scaggs
Tonto National Forest
john.scaggs@usda.gov

Apache Leap Special Management Area
Apache Leap SMA website