Press Release Jun 24, 2015

Legal Agreement Reached to Reduce Power Plant Pollution Damaging Southwest's National Parks, Navajo People

Consent Decree will Cut Emissions from New Mexico's Four Corners Plant

WASHINGTON – The National Parks Conservation Association (NPCA) and other clean air advocates, represented by Earthjustice, reached an agreement today with the U.S. Environmental Protection Agency (EPA) and the owners of New Mexico’s Four Corners Power Plant to reduce the plant’s pollution and improve the health of surrounding communities and national parks.

“For far too long, the irresponsible management of Four Corners has denied the Navajo people the basic human right to clean, healthy air in our communities,” said Lori Goodman, board member of Diné Citizens Against Ruining Our Environment (Diné CARE). “Now with this settlement, Four Corners will have to take steps to stop poisoning our air and start moving toward a healthier future.”

Four Corners, located on the Navajo Nation in New Mexico, is responsible for dirtying the air in Grand Canyon and 15 other national parks in the Southwest. Over the last 30 years, the owners of the plant made changes that resulted in additional pollution. In 2011, NPCA, Diné CARE, and To’ Nizhoni Ani filed a lawsuit asserting that the plant violated the Clean Air Act by increasing emissions without also installing best pollution controls.

Under the consent decree, the plant will reduce emissions of nitrogen oxides and sulfur dioxide –major contributors to both respiratory health problems and haze in the parks. The owners will also pay $1.5 million in civil penalties and $6.7 million in healthcare and other mitigation costs for the affected communities.

“Pollution from Four Corners has sickened local communities for decades despite plenty of opportunities for the plant to clean up its act,” said Nicole Horseherder of To’ Nizhoni Ani. “Today’s agreement provides a much needed investment in the health and wellbeing of those residents.”

“After years of dangerous pollution, this settlement is a welcome shift toward a cleaner, more just future for the people and parks of the Southwest,” said Kevin Dahl, Arizona senior program manager for NPCA. “Clearer skies over parks like Mesa Verde and Petrified Forest are good news for visitors, nearby communities, and the local economy.”

“This legal victory represents a relentless and inspired fight led by members of the Navajo Nation and concerned local leaders, who refused to give up on the health of their community,” said Earthjustice attorney Mary Whittle, who represented the groups. “It’s a shame it takes a legal battle to hold the operators of this dirty coal plant accountable, but we’re glad to see action to clean up the air around Four Corners.”

Once the nation’s single largest source of nitrogen oxide emissions, Four Corners’ pollution has long been recognized as a threat to the region’s health. In 2009, NPCA and Diné CARE. submitted comments to the EPA demonstrating that the Regional Haze Rule—the Clean Air Act program designed to reduce air pollution in national parks—required Four Corners to clean up its emissions. The following year, the EPA proposed limits that cut 85% of the plant’s nitrogen oxide emissions.

Plant owners offered their own pollution mitigation plan, which called for closing the first three coal units at Four Corners and installing best controls for nitrous oxide pollution at the remaining two units. Those first three units closed at the end of 2013.


National Parks Conservation Association
Since 1919, the nonpartisan National Parks Conservation Association has been the leading voice in safeguarding our national parks. NPCA and its one million supporters work together to protect and preserve our nation’s natural, historical, and cultural heritage for future generations. For more information, visit

Earthjustice, the nation’s premier nonprofit environmental law organization, wields the power of law and the strength of partnership to protect people’s health, to preserve magnificent places and wildlife, to advance clean energy, and to combat climate change.
Because the earth needs a good lawyer.

Diné Citizens Against Ruining Our Environment (“Diné CARE”) is an all-Navajo nonprofit environmental organization who works with many Navajo communities affected by energy and environmental issues on the Navajo Nation. Diné CARE is comprised of a federation of grassroots community activists from Arizona, New Mexico and Utah who strive to educate and advocate for our traditional teachings derived from Diné Fundamental Laws. Diné CARE’s goal is to protect all life in Navajo ancestral homeland by empowering local and traditional people to organize, speak out, and determine the outlook of the environment through civic involvement and engagement in decision-making process relating to tribal development.

To’ Nizhoni Ani
TNA is a grassroot organization whose primary purpose is protecting the Navajo Aquifer so that the Diné living on Black Mesa may continue their way of life, language and culture.

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