Three coal-fired power plants in Arizona would need more pollution-trapping devices under a proposal released late Monday by the U.S. Environmental Protection Agency. One is between Winslow and Holbrook, one on the Arizona-New Mexico border and a third east of Tucson. The measure would "improve visibility and human health" at 18 national parks and wilderness areas, including Grand Canyon and the Petrified Forest, the EPA projected. That would bring clearer views to some 11 million national park visitors in Arizona, the EPA stated. There were no immediate estimates of cost on Tuesday. Cholla Power Plant in Joseph City, owned by Arizona Public Service, is one of the nearest plants to Flagstaff and the Grand Canyon proposed for more emission controls. Specifically, the EPA would propose to cut 7,800 tons a year of NOx emissions at Cholla. The EPA's proposal comes on the heels of litigation by nine environmental groups after the EPA missed legal deadlines for limiting pollution from Arizona power plants and factories. The EPA plans to make a final decision in November.
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