SAN FRANCISCO – The U.S. Environmental Protection Agency is proposing pollution controls at six facilities in Arizona to improve visibility at national parks and wilderness areas.
EPA is proposing a federal plan to limit emissions such as nitrogen oxides and sulfur dioxide tailored to six facilities: Tucson Electric Power’s Sundt Plant in Tucson, Chemical Lime Nelson in Peach Springs, ASARCO’s Hayden Smelter, Freeport McMoran’s Miami Smelter, Phoenix Cement Company’s Clarkdale plant and CalPortland Cement Company’s Rillito plant. As a part of this process, EPA also evaluated other sources but is not proposing to require any additional controls on these other sources at this time.
EPA estimates the proposal would reduce sulfur dioxide by almost 30,000 tons per year and nitrogen oxides by 3,100 tons per year.
EPA will hold public hearings on February 25, 2014, in Phoenix and on February 26, 2014, in Tucson and will accept comments for 45 days after publication in the Federal Register. A final determination will be made by June 27, 2014.
For more information, including a map, and fact sheet go to: www.epa.gov/region9/air/actions/az.html
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