Documents

Maintaining productive relationships with involved companies, land managers and civic leaders.

Rio Tinto reported a strong set of results with operating cash flow of US$13.9 billion, a record full year dividend of US$5.2 billion and an additional US$1 billion share buy-back. This brings total cash returns to shareholders to US$9.7 billion declared for 2017.

Laharz is software designed to calculate a proximal hazard zone and automate equations and to run within a Geographic Information System (GIS) over three dimensional topography in order to estimate distal hazard zones.

Stockpiling procedures vary between civil engineering and mining operations. These differences and how they effect soil productivity will be discussed. Soil changes that occur when stockpiling techniques are used will also be discussed as will improvements and challenges in the use of this technique.

This memo is written to provide an explanation of the methodology used to derive the rock mass strength for the Apache Leap Tuff (Tal).

In this action, the Environmental Protection Agency (EPA) promulgates revisions to the Guideline on Air Quality Models (‘‘Guideline’’). The Guideline provides EPA’s preferred models and other recommended techniques, as well as guidance for their use in estimating ambient concentrations of air pollutants.

This Environmental Assessment discloses the direct, indirect, and cumulative environmental impacts that would result from the proposed action and alternatives.

The management direction in this plan is designed to protect the values for which the area was designated, and to guide limited uses compatible with the area’s primary purpose.

Screenshot of StreamStats webpage

The purpose of this memo is to present results of water balance analysis for each of the five tailings storage alternatives (Alternatives 2 through 6).