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Tailings

TITLE: Rosemont Copper Company Filtered Tailings Dry Stacks Current State of Practice Final Report

RELEASE DATE: November 2008PREPARED BY: AMEC Earth & Environmental, Inc.Brief Summary: Unlike conventional tailings impound-

ments, filtered tailings are unsaturated, dense and stored in a facility known as a “dry stack.” Filtered tailings have a smaller footprint, are easier to reclaim, and minimize any environmental impacts by effi-ciently recycling process water. With Arizona’s arid environment and the state’s critical need to conserve water, filtered tailings is a viable option for the Rose-mont project, according to the AMEC Earth & Envi-ronment, Inc. report.

The tailings study compared tailings alternatives to determine which is a viable option for the Rosemont project .

Tailings

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