Documents

This table summarizes hydraulic conductivity estimates from testing of wells and boreholes during hydrologic characterization activities conducted by Montgomery & Associates (M&A) during the period 2004 through 2012. To date, results of hydraulic testing and analysis have been provided in individual reports or technical memoranda for wells or groups of wells completed over the course of the 8 year period from 2004 to 2012.

List of federal threatened, endangered, and candidate species for Tonto National Forest.

Major aquifers, well yields, estimated natural recharge, estimated water in storage, number of index wells and date of last water-level sweep are shown in Table 2.1-6. Figure 2.1-7 shows aquifer boundaries, aquifer flow direction and water-level change between 1990-1991 and 2003-2004.

The San Pedro Valley is a little off the beaten path, which is one reason why archaeology is generally well preserved there. From Benson north to Winkelman, the valley is served by two-lane roads, and for nearly half of that distance, the roads are unpaved. High mountains to the east and west clearly define the valley, and cottonwoods or dense stands of mesquite reveal places where the river's waters flow above and below ground. This valley truly is a special place - for visitors and archaeologists alike.

Phase I Environmental Site Assessment (ESA) for an approximately 147-acre site (JX Ranch, or “the Property”) along Turkey Creek in the Sierra Ancha Mountains of Tonto National Forest in Gila County, Arizona.

This technical memorandum was prepared to summarize results of drilling, construction, equipping, and testing at hydrologic test wells DHRES-03, DHRES-04, and DHRES-05/DHRES-05B. The wells were installed to characterize hydrogeologic conditions in the Gila Conglomerate and Apache Leaf Tuff west of the Concentrator Fault in the vicinity of West Plant site and to provide monitoring locations for the aquifer west of the Concentrator Fault during dewatering operations in 2010 and 2011.

The purpose of this report is to 1) compile Arizona hedgehog cactus survey data collected during preparation of the Pre-feasibility Activities Plan of Operations; and 2) compile previously completed survey data from the vicinity of the PAA that may inform the analysis of the effects of the Pre-feasibility Activities to AHC.

Resolution Copper Mining Company (RCM), acting jointly with Rio Tinto (RT-OTX), asked Mark Logsdon (Geochimica, Inc, Aptos, CA) to prepare a plan to geochemically characterize the rock mass that may be subject to chemical weathering as a consequence of block-caving operations at The Resolution property near Superior, Arizona. Results from this study will be used by RCM and its contractors to develop a geochemical model of the block-cave zone as it affects operational and closure considerations.