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Correction: Power Plants-EPA story

Associated Press Modified: November 21, 2012 at 12:45 pm •  Published: November 21, 2012

FLAGSTAFF, Ariz. (AP) — In a story Nov. 17 about power plant upgrades, The Associated Press misspelled the name of an official with the Salt River Project and erroneously said the utility owns the Cholla Power Plant. The official is Kelly Barr, not Bar. The power plant is owned by Arizona Public Service and PacifiCorp.

A corrected version of the story is below:

EPA puts new emission limits on Ariz. power plants

EPA finalizes air quality rule for Arizona coal-fired power plants; state quick to denounce it


Associated Press

FLAGSTAFF, Ariz. (AP) — The U.S. Environmental Protection Agency has imposed new pollution limits on three coal-fired Arizona power plants, aiming to protect the environment and air quality for wilderness areas and landmarks such as the Grand Canyon.

The EPA set limits for the Cholla, Coronado and Apache generating stations that will require technology upgrades to keep 22,700 tons of nitrogen oxide out of the air each year.

State officials quickly denounced the decision Friday, saying it needlessly was harsh, would require a $500 million investment by utilities and will make electricity more expensive for consumers.

"We are disappointed that EPA would choose to unilaterally decide what's best for Arizona rather than" partner with the state Department of Environmental Quality on a proposal, said department director Henry Darwin.

He added that any air quality improvements, specifically a reduction in haze that obscures mountains and sunsets and can make breathing difficult for people with respiratory problems, would be imperceptible.

States have the authority to come up their own plans to reduce haze, but they are subject to EPA review. The agency approved Arizona's plan for sulfur dioxide and particulate matter, but said the state didn't do enough to limit nitrogen oxide emissions.

Colleen McKaughan, associate director in the EPA's air division, agreed with the state's estimate on the cost of upgrades, but said the power plants should be able to afford the improvements.

The limits set by the EPA under the new rule finalized late Thursday are less strict than a July proposal and give the power plants more flexibility, McKaughan said.

"We're not picking on power plants, we're not picking on the state of Arizona," she said. "This is a nationwide effort looking at all sources of visibility impairing pollutants."

Environmentalists touted the decision as a victory for public health. The regional haze program under the federal Clean Air Act is meant to address visibility in Class I areas like the Grand Canyon, Mesa Verde and the Petrified Forest, but environmentalists say the same pollutants are linked to respiratory illnesses and death.

The plants' operators now have five years to comply with new limits for nitrogen oxide at most of the units. The rule is subject to challenge through a petition for reconsideration or a lawsuit.

The operators haven't decided what route they'll take but said Friday they were disappointed with the EPA.

Kelly Barr, an official with the Salt River Project, which owns and operates the Coronado Generating Station near St. Johns, said she's unsure if the company can comply with the new limits.

"We don't believe there's going to be any perceptible improvement in visibility," she said. "The rule puts us in a difficult position."

The EPA will address the remaining portions of Arizona's air quality plan by Dec. 8.


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