Excelsior’s Gunnison copper mine will be one of the lowest consumers of water in the world.
An on-site water treatment facility will further decrease total water consumption and ensure water quality meets regulatory standards.
Willcox basin water consumption
Principal water consumers in the Willcox Basin,
2006-2010 average, in acre-feet per year.
ANNual water usage of
major Arizona copper mines
Average, 2004-2008, in acre-feet per year
Source: Arizona Department of Mines & Mineral Resources SR 29 2010