The EPA denied the requests of six coal plants - including the Salt River Project’s Coronado Generating Station - to keep dumping toxic ash into unlined or inadequately lined pits, signaling the agency’s commitment to enforce the 2015 federal coal ash rules. Read more» 
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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 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»
