How is Kennecott ensuring an environmentally safe mine against factors such as Acid Rock Drainage?
A Kennecott priority is environmental responsibility and protection. Preventing and controlling the conditions that can lead to the potential for Acid Rock Drainage (ARD) to occur is central to the planning and design of the Eagle Project. ARD may occur when rocks naturally containing sulfides are exposed to air and water over time (all three elements must be present), sometimes producing a dilute sulfuric acid. Successful management of this issue first requires a comprehensive understanding the fundamental principles of ARD and the details of local geology Kennecott has developed expertise and knowledge of both. A conservative approach to managing ARD is the best approach. While not all rock from the area of the proposed mine contains sulfides, Kennecott will treat it all with the same process to provide the greatest assurance of protection. Kennecott has also developed demonstrated measures that protect important groundwater and surface water bodies. Two separate but complementary sy
