Montgomery & Associates

The documents listed below were authored by Montgomery & Associates.

This document proposes an approach to monitoring and mitigation of Groundwater Dependent Ecosystems (GDEs) identified through the NEPA process as being dependent on project area regional groundwater and therefore at risk of being impacted by mine dewatering activities.

This report presents a water budget for all watersheds and groundwater systems within the projected impact area for the panel-cave underground mining project proposed by Resolution Copper.

This report summarizes results of drilling, construction, and testing of hydrologic test wells DS16-01 through DS17-17, and piezometers DS17-18 and DS17-19 at the Near West Site.

This memorandum was written for the United States Forest Service (USFS) to document construction and results of steady-state groundwater flow modeling (Model) representing the additional engineered seepage control measures for the proposed Near West Tailings Storage Facility (TSF) designs (Alternative 2 and Alternative 3).

This memorandum was written to document model construction and results of steady-state groundwater flow modeling (Model) of the proposed Near West Tailings Storage Facility (TSF).

This memorandum was written to document model construction and results of steady-state groundwater flow modeling (Model) of the proposed Near West Tailings Storage Facility (TSF).

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.

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Public Hearing Comments Available

Comments from each of the six public hearings are available for viewing. Note that the public comment period is now closed.

Public Hearing Comments

Draft EIS

Media & General Info

Point of Contact
John Scaggs
Tonto National Forest
john.scaggs@usda.gov

Apache Leap Special Management Area
Apache Leap SMA website