Documents

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Materials that meet the criteria of Freedom of Information Act exemptions are not posted on this website. Culturally sensitive materials not posted here fall under this criteria.

The objective of this plan is to support the site-wide reclamation plan (Tetra Tech 2020) by providing the strategy and design for implementing closure measures for the Skunk Camp TSF.

It takes a lot of power to lift water. To appreciate how much, consider the following example.

Determination of threatened species status under the Endangered Species Act of 1973 (Act), as amended, for the cactus ferruginous pygmy-owl (Glaucidium brasilianum cactorum), a bird subspecies found in Mexico, southern Arizona, and southern Texas.

Phase I consists of the hydrologic and geologic characterization of the study area. Also presented are the definition and quantification of groundwater recharge sources, pumpage, subsurface inflows and outflows, and recommendations to fill critical data deficiencies.

2016 survey for the yellow-billed cuckoo (YBCU; Coccyzus americanus) at four sites in the vicinity of the Resolution Copper Project.

The purpose of this tech memo is to describe and present the results of a ADEQ Tier 1 geochemical characterization program of development rock for proposed Shaft No. 10 based detailed sampling and analysis of samples from a pilot drill hole along the entire vertical section of the proposed shaft.

This report summarizes the meteorological, nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), and particulate matter (PM) data collected at the Resolution Copper Project near Superior, Arizona for the fourth quarter, October 1-December 31, 2012.

Wetland and floodplain analysis of a 2,422-acre area of federal land being proposed for exchange for more than 5,000 acres of RCM privately owned conservation parcels.

The Research Ranch, near Elgin in Santa Cruz County, Arizona, is administered by the National Audubon Society. It consists of about 8000 acres of federal and private lands that are managed for ecosystem research projects by the National Audubon Society, which has cooperative agreements with the federal land management agencies. This summary of the early history of land settlement of the Research Ranch area and some of the subsequent land transactions is taken primarily from information in the land records of the BLM and ASLD.