EPA and U.S. Department of Justice announced federal Clean Air Act settlement with Arizona- and New Mexico-based utility companies to install pollution control technology to reduce harmful air pollution from Four Corners Power Plant located on Navajo Nation near Shiprock, NM. Settlement requires estimated $160 million in upgrades to plant’s SO2 and NOx pollution controls, $6.7 million for 3 health and environmental mitigation projects for tribal members, and $1.5 million civil penalty.