Navajo Nation Air Actions | Pacific Southwest | US EPA

http://www.epa.gov/region9/air/navajo/[8/18/2015 12:12:36 PM]

 ALL EPA REGION 9 Advanced Search

Pacific Southwest, Region 9 Contact EPA Pacific Southwest Air Program

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

You are here: EPA Home Pacific Southwest Air Actions Navajo Nation

Air Actions home Arizona California Gila River Hawaii Navajo Nation Nevada Region-Wide Ozone

Contact

By Electronic Mail to:

lee.anita@epa.gov

By Postal Mail to the following

 address:

Anita Lee (AIR-2)

US Environmental

 Protection Agency

75 Hawthorne Street 

San Francisco, CA 94105

You will need Adobe Reader to

 view some of the files on this

 page. See EPA's PDF page to

 learn more about PDF, and for a

 link to the free Adobe Reader.

Air Actions, Navajo Nation

Actions on this page:

Navajo Generating Station

Four Corners Power Plant

Navajo Generating Station

Final Action for Best Available Retrofit Technology for Navajo Generating

 Station, Navajo Nation

July 28, 2014: EPA is taking final action to promulgate regulatory requirements

 consistent with an alternative to BART developed by the Technical Work Group on NGS

 (TWG). This action requires NGS, located on the Navajo Nation, to achieve emission

 reductions of oxides of nitrogen (NOx) in 2019 and 2030. This pollutant contributes to

 visibility impairment in 11 national parks and wilderness areas surrounding NGS.

Federal Register Notice

Fact Sheet (PDF) (3 pp, 325K)

Press Release

Electronic Docket for the Rulemaking

Supplemental Proposal for Best Available Retrofit Technology for Navajo Generating Station, Navajo Nation

September 25, 2013: EPA is supplementing our February 5, 2013 proposed rulemaking with today’s proposal of an additional

 Alternative to BART submitted by a group of stakeholders known as the Technical Work Group (TWG). The TWG Alternative to

 BART requires that Navajo Generating Station (NGS), located on the Navajo Nation, reduce emissions of oxides of nitrogen (NOx)

 over time. These pollutants contribute to visibility impairment in numerous national parks and wilderness areas surrounding

 NGS. EPA is accepting comment on our February 5, 2013 proposed rulemaking and today’s Supplemental Proposal concurrently

 until January 6, 2014.

Federal Register Notice

Fact Sheet (PDF) (3 pp, 300K)

Proposed Federal Implementation Plan - Best Available Retrofit Technology for Navajo Generating Station,

 Navajo Nation

September 16, 2013: EPA is extending the public comment period for three additional months for the proposed rulemaking on

 NGS. Because EPA has not yet announced the schedule for the five public hearings we intend to hold in Arizona, and because EPA

 is still evaluating an Alternative to BART we received from stakeholders on July 26, 2013, EPA is extending the comment period

 to close on January 6, 2014. EPA intends to hold public hearings prior to the close of this extended comment period and to

 announce the schedule shortly.

Federal Register Notice - extended comment period

June 26, 2013: EPA is providing a second extension of the public comment period for the proposed rulemaking on NGS based on

 a request from Salt River Project, the operator of NGS, on behalf of the Navajo Nation, the Gila River Indian Community, the

 Central Arizona Water Conservation District, the Environmental Defense Fund, and the U.S. Department of the Interior, EPA is

 extending the comment period an additional 60-days. The public comment period will now close on October 4, 2013.

Federal Register Notice

June 10, 2013: EPA is announcing our intent to hold five public hearings to accept written and oral comments on EPA’s proposed

 rulemaking on NGS. We intend to hold a hearing at one location each on the Navajo Reservation and the Hopi Reservation, and in

 Page, Phoenix, and Tucson, Arizona. We will announce the exact dates, times, and locations for the hearings at a later time.

Pacific Southwest

Air Home

Air Quality Analysis

Air Permits

Air Plan Actions

Tribal Air

SIP Rule Collection

Alternative Test Methods

Air Delegations

State & Local Contacts

About Us

Air Archive

About EPA Region 9 (Pacific

 Southwest)

Today's Air Quality

Air Quality Maps

Air Trends

Exceptional Events

Arizona

California

Gila River

Hawaii

Navajo Nation

Nevada
Navajo Nation Air Actions | Pacific Southwest | US EPA

http://www.epa.gov/region9/air/navajo/[8/18/2015 12:12:36 PM]

Top of Page

You will need Adobe Reader to

 view some of the files on this

 page. See EPA's PDF page to

 learn more about PDF, and for a

 link to the free Adobe Reader.

Federal Register Notice

March 19, 2013: EPA is providing a 90-day extension of the public comment period for the proposed rulemaking on NGS, based

 on requests from the Navajo Nation and other stakeholders. The public comment period will now close on August 5, 2013.

Federal Register Notice - extended comment period

January 17, 2013: EPA is proposing that Navajo Generating Station (NGS), located on the Navajo Nation, reduce emissions of

 oxides of nitrogen (NOx).These pollutants contribute to visibility impairment in numerous national parks and wilderness areas

 surrounding NGS.

Federal Register Notice

Fact Sheet (PDF) (3 pp, 198K)

Press Release

EPA, DOE, DOI - 3 Agency Statement (PDF) (3 pp, 198K)

Contact Information

Anita Lee (lee.anita@epa.gov)

Air Division

(415) 972-3958

Final action on Source-Specific Federal Implementation Plan for Navajo Generating Station

February 25, 2010: EPA finalized a Federal Implementation Plan (FIP) under the Clean Air Act (CAA) to regulate emissions from the

 Navajo Generating Station (NGS), located on the Navajo Indian Reservation in Arizona. The purpose of the FIP is to ensure

 protection of tribal air resources. The plan previously followed emissions limits established in the Arizona State Implementation

 Plan. However, EPA's promulgation of the Tribal Authority Rule clarified that State air quality regulations generally could not be

 extended to facilities located on the reservation. This FIP establishes federally enforceable emissions limitations for sulfur

 dioxide, total particulate matter, and opacity, and sets a control measures requirement for dust.

Navajo Generating Station: Final Rule

Navajo Generating Station: Proposed Rule

Fact Sheet

Response to comments (PDF) (21 pp, 683K)

Contact Information

Colleen McKaughan (mckaughan.colleen@epa.gov)

Air Division 

(520) 498-0118

Four Corners Power Plant

Four Corners Power Plant Will Implement Alternative to BART

December 30, 2013: Arizona Public Service Company notified EPA that it has selected to

 implement the Alternative to BART for the Four Corners Power Plant. Under this compliance

 strategy, APS will retire Units 1, 2, and 3 by January 1, 2014 and will comply with the BART

 emission limit for NOx on Units 4 and 5 by July 31, 2018.

December 30, 2013 Letter from APS to EPA (PDF) (2 pp, 187K)

Revision to Four Corners Power Plant Federal Implementation Plan – Final Action to Extend Notification

 Deadline

September 24, 2013: EPA has extended the date by which the operator of the Four Corners Power Plant must notify EPA of its

 selected strategy for compliance with the Best Available Retrofit Technology (BART) Federal Implementation Plan (FIP) that was

 finalized in August 2012. EPA’s 2012 BART FIP for Four Corners Power Plant required the operator to choose between compliance

 with EPA’s final BART determination, or with an alternative emission control strategy. EPA is extending the notification date from

 July 1, 2013 to December 31, 2013.

Federal Register Notice

Fact Sheet (PDF) (1 pg, 100k)
Navajo Nation Air Actions | Pacific Southwest | US EPA

http://www.epa.gov/region9/air/navajo/[8/18/2015 12:12:36 PM]

Top of Page

Proposed Revision to Four Corners Power Plant Federal Implementation Plan – Proposal to Extend Notification

 Deadline

June 25, 2013: EPA is proposing to extend the date by which the operator of the Four Corners Power Plant must notify EPA of its

 selected strategy for compliance with the Best Available Retrofit Technology (BART) Federal Implementation Plan (FIP) that was

 finalized in August 2012. EPA’s 2012 BART FIP for Four Corners Power Plant required the operator to choose between compliance

 with EPA’s final BART determination, or with an alternative emission control strategy. EPA is proposing to extend the notification

 date from July 1, 2013 to December 31, 2013.

Federal Register Notice

Contact Information

Anita Lee (lee.anita@epa.gov)

Air Division

(415) 972-3958

Federal Implementation Plan - Best Available Retrofit Technology for Four Corners Power Plant, Navajo Nation

August 6, 2012: EPA is requiring Four Corners Power Plant (FCPP), located in the Navajo Nation, to reduce emissions of oxides of

 nitrogen (NOx) and setting emission limits for particulate matter (PM) based on emission rates already achieved at FCPP. These

 pollutants contribute to visibility impairment in numerous national parks and wilderness areas surrounding FCPP.

Federal Register Notice

Response to Comments Document (PDF) (171 pp, 851K)

Fact Sheet (PDF) (3 pp, 340K)

Related Items:

Information on the October 2010 Proposed Rule, the February 2011 Supplemental Proposal, all public comments

 received, and transcripts from the public hearings are available in the following docket: EPA-R09-OAR-2010-0683

Information from the August 2009 Advanced Notice of Proposed Rulemaking for Four Corners Power Plant and

 Navajo Generating Station are available in the following docket: EPA-R09-OAR-2009-0598

Contact Information

Anita Lee (lee.anita@epa.gov)

Air Division

(415) 972-3958

Final action on Source-Specific Federal Implementation Plan for Four Corners Power Plant

April 30, 2007: EPA finalized a Federal Implementation Plan (FIP) under the Clean Air Act (CAA) to regulate emissions from the

 Four Corners Power Plant (FCPP), located on the Navajo Indian Reservation in New Mexico. The purpose of this FIP is to ensure

 protection of tribal air resources. The plant previously followed emissions limits in the New Mexico State Implementation Plan.

 However, EPA’s promulgation of the Tribal Authority Rule clarified that State air quality regulations generally could not be

 extended to facilities located on the reservation. This FIP establishes federally enforceable emissions limitations for sulfur

 dioxide, nitrogen oxides, total particulate matter, and opacity, and a requirement for control measures for dust. The plan

 includes significant sulfur dioxide reductions from the facility's historic highs at the 5-unit 2,040 megawatt Four Corners plant,

 which began operations in 1962. The reductions are the result of a partnership between the Navajo Nation, the Arizona Public

 Service, the National Park Service, Environmental Defense, Western Resource Advocates, and New Mexico Citizens for Clean Air

 and Water.

Four Corners Power Plant: Final Rule

Four Corners Power Plant: Proposed rule

Press Release (5/1/07)

Fact Sheet

Response to comments (PDF) (31 pp, 85K)

Contact Information

Colleen McKaughan (mckaughan.colleen@epa.gov)

Air Division 

(520) 498-0118
Navajo Nation Air Actions | Pacific Southwest | US EPA

http://www.epa.gov/region9/air/navajo/[8/18/2015 12:12:36 PM]

EPA Home Privacy and Security Notice Contact EPA Pacific Southwest