Chris Gregory

Thumbnail image of Results of Updated Seepage Transport Models Incorporating Additional Seepage Controls for TSF Alternative Sites memo cover

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.

Thumbnail image of TSF Alternatives 2 and 3 - Near West: Life of Mine and Post-Closure Seepage Transport Modeling memo cover

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.

Thumbnail image of TSF Alternative 5 - Peg Leg: Life of Mine and Post-Closure Seepage Transport Modeling memo cover

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

Thumbnail image of TSF Alternative 4 - Silver King: Life of Mine and Post-Closure Seepage Transport Modeling memo cover

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

Thumbnail image of Estimated Preliminary Allowable Seepage from TSF Alternative Sites for Comparative Analysis memo cover

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).

Media Point of Contact

Amanda Oliver
amanda.oliver@usda.gov

Apache Leap Special Management Area
Apache Leap SMA website