Montgomery & Associates

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).

Thumbnail image of Results of Site Reconnaissance memo cover

Summary of reconnaissance investigations at the Skunk Camp site, an alternative site for a future tailings storage facility (TSF).

Thumbnail image of Peg Leg Investigations: Results of Reconnaissance memo cover

Summary of reconnaissance investigations at the Peg Leg site, an alternative site for a future tailings storage facility (TSF).

Thumbnail image of Simulation of Drawdown Impacts from Desert Wellfield document cover

Technical memorandum evaluating potential drawdown impacts from groundwater pumping to supply water for the proposed Resolution Copper mine.

Thumbnail image of the Spring and Seep Catalog - June 2018

This catalog has been prepared to summarize available information for selected springs and seeps in the Upper Queen Creek and Devils Canyon watersheds. The springs and seeps included in this catalog were selected based on proximity to planned facilities as proposed by Resolution Copper for the Resolution mine project. Version 2.0.

Thumbnail image of 2017 Oak Flat Surface Water Monitoring Program document cover

Fourteen sites were studied to provide baseline technical hydrologic monitoring in the Oak Flat area within or adjacent to the projected disturbance zone of the proposed RC block cave mine.

Thumbnail image of Spring and Seep Catalog report cover with photograph of water near rock outcropping

This catalog has been prepared to summarize available information for selected springs and seeps in the Upper Queen Creek and Devils Canyon watersheds. The springs and seeps included in this catalog were selected based on proximity to planned facilities as proposed by Resolution Copper for the Resolution mine project. Version 1.0.

Thumbnail image of Analysis of Groundwater Level Trends, Upper Queen Creek/Devils Canyon Study Area document cover

The principal objective of this report is to present and review groundwater level and hydraulic head data for the RC hydrologic monitoring network.

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Media Point of Contact

Amanda Oliver
amanda.oliver@usda.gov

Apache Leap Special Management Area
Apache Leap SMA website