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Baseline Reports

The documents listed below represent baseline information collected by Resolution Copper and provided to the Tonto National Forest to be used as a partial basis for the analysis in the EIS. The Tonto National Forest will independently evaluate any data provided by Resolution Copper that is used in the EIS to ensure that it is valid, adequate to support the analysis, and represents the best available science.

Various baseline biological surveys and studies were conducted in and around where project features will be located. The goal of this report is to present results of surveys in the Study Area for: 1) riparian tree species, 2) pools and runs in the streambed, 3) fish species, 4) amphibian species, and 5) aquatic snake species.

This technical memorandum was prepared to summarize the results of a long-term aquifer test conducted at Resolution Project hydrologic characterization well HRES-4. Well HRES-4 is completed in the Apache Leap Tuff aquifer near Oak Flat, in the upper Queen Creek drainage basin of eastern Pinal County, Arizona.

At HRES-19 and HRES-20, the primary target drilling depth was the contact between the Tertiary Apache Leap Tuff and the underlying White Tail Conglomerate. During drilling operations, data was collected to better characterize the hydrogeologic conditions within the Apache Leap Tuff. The target depth was reached at HRES-19, although the depth to the White Tail Conglomerate was shallower than expected. The White Tail Conglomerate was not reached at HRES-20 due to technical issues encountered while drilling.

This report is an addendum to several previous reports that include detailed analysis and discussion of hydrochemical sampling results for surface water and groundwater in the Upper Queen Creek/Devils Canyon (QCDC) study area.

The purpose of this study is to quantify climbing resources and to assess potential losses for the Environmental Impact Statement (EIS) and to help identify needs for potential mitigation. Aside from a climbing resources inventory, this memorandum also provides background information related to climbing resources, including a description of areas within the Queen Creek climbing area.

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.