Documents

The Biological Evaluation (BE) supports the proposed baseline hydrologic and geotechnical testing and monitoring activities (the Proposed Action).

This dataset was created to serve as base information for use in GIS systems for a variety of planning and analysis purposes.

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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 Census Bureau releases two reports every year that describe who is poor in the United States. The first report calculates the nation’s official poverty measure based on cash resources. The second is known as the supplemental poverty measure (SPM) and takes account of cash resources and noncash benefits from government programs aimed at low income families.

This technical memorandum has been prepared to summarize results of drilling, construction, and testing at hydrologic test wells HRES-16, HRES-17, and HRES-18. The wells were installed to characterize hydrogeologic conditions in the Apache Leap Tuff (ALT) on the east side of Devils Canyon near the JI Ranch Fault. HRES- 16 is a larger diameter well (nominal 8-inch) that was completed to provide a location for longterm aquifer testing in the ALT aquifer. Monitoring data obtained from HRES-16, HRES-17, and HRES-18 have been incorporated into the RCM hydrologic monitoring program.

Arizona hedgehog cactus surveys conducted in the vicinity of East Plant, along portions of the existing Magma Mine Road, and along the proposed re-alignment of Magma Mine Road.

This technical memorandum presents the results from the static geochemical characterization program of cleaner and scavenger tailings for the Resolution Copper Project .

In this chapter we survey and synthesize available information on the major physical-chemical properties of hydrous ferric oxide (HFO). After examining the structure and composition of HFO, we present published data for surface area, site densities, and surface acid-base properties. Our main purpose is to obtain best estimates for the surface properties of HFO and provide a sense for the consistency of the corresponding experimental data.

In previous ground-motion models, the range of applicability of the empirical ground-motion models was based on the range covered by the available empirical data set; however, in hazard studies, the ground motion must be computed for all relevant earthquakes, so the limits on the range of applicability were often ignored. To address this issue, the Next Generation Attenuation (NGA) project required the developers of the models to extrapolate their models such that they are applicable to all crustal earthquakes relevant for seismic hazard analyses in California.