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The Coronado Generating Station was one of three coal-fired power plants in eastern Arizona that had emissions restrictions imposed by the EPA. A federal court upheld the EPA action.

A federal appeals court Wednesday said the Environmental Protection Agency acted properly when it rejected Arizona’s pollution-control plan for the Coronado Generating Station and imposed its own strict emission limits instead. Read more»

The Cholla Power Plant in Joseph City, near Holbrook.

The EPA has proposed new air-quality regulations at three Arizona coal power plants to help improve visibility at 18 national parks in Arizona, New Mexico and Colorado – including the Grand Canyon – and to protect the health of people living in the region. Critics say the rules will boost electric bills. Read more»