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2013-02-05
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Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station
Part III
Proposed Rules
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United States
Environmental Protection Agency
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United States Government Agency or Subagency
The Environmental Protection Agency (EPA) is proposing a source-specific federal implementation plan (FIP) requiring the Navajo Generating Station (NGS), located on the Navajo Nation, to reduce emissions of oxides of nitrogen (NO<INF>X</INF>) under the Best Available Retrofit Technology (BART) provision of the Clean Air Act (CAA or Act) in order to reduce visibility impairment resulting from NGS at 11 National Parks and Wilderness Areas. NGS, which was built over 35 years ago, is the largest coal-fired power plant in the West in terms of generating capacity. It is central to the economies of the Navajo Nation and Hopi Tribe and supplies power to the states of Arizona, Nevada, and California. Electricity produced by NGS is also used to power the Central Arizona Project, which supplies surface water to three counties and numerous Indian tribes in Arizona. NGS is projected to continue operating at least until 2044. EPA is proposing to require NGS to achieve a nearly 80 percent reduction of its current overall NO<INF>X</INF> emission rate. Our analysis indicates that installation of controls to achieve this reduction would result in significant visibility improvement that is well-balanced with the cost of those controls. For a number of reasons, including the importance of NGS to numerous Indian tribes located in Arizona and the federal government's reliance on NGS to meet the requirements of water settlements with several tribes, EPA is proposing an alternative to BART that would provide flexibility to NGS in the schedule for the installation of new control equipment. We also describe other compliance schedules for consideration and comment. We recognize that there may be other approaches that could result in equivalent or better visibility benefits over time and that there may be changes in energy demand, supply or other developments over the next several decades that may change electricity generation on the Navajo Nation. EPA encourages a robust public discussion of our proposed BART determination and alternative, the additional alternatives described herein, and other possible approaches. EPA is prepared to issue a supplemental proposal if approaches other than the proposed BART determination or proposed alternative articulated in this notice are identified as satisfying the requirements of the Clean Air Act and meeting the needs of the stakeholders. EPA is committed to continuing to engage with stakeholders to develop a final FIP that maintains benefits to tribes and the regional economy while improving visibility in many of our nation's most treasured National Parks and Wilderness Areas.
78 FR 8274
https://www.govinfo.gov/app/details/FR-2013-02-05/2013-01858
2013-01858
fr05fe13-28
6560-50-P
EPA-R09-OAR-2013-0009
FRL-9774-1
https://www.govinfo.gov/app/details/FR-2013-02-05/2013-01858
https://www.govinfo.gov/content/pkg/FR-2013-02-05/html/2013-01858.htm
https://www.govinfo.gov/content/pkg/FR-2013-02-05/pdf/2013-01858.pdf
Environmental Protection
Administrative Practice and Procedure
Air Pollution Control
Indians
Intergovernmental Relations
Reporting and Recordkeeping Requirements
21 p.
8274
8294
78 FR 8274
Code of Federal Regulations
Title 40 Part 49
40 CFR Part 49
Approval of Air Quality Implementation Plans; Navajo Nation; Regional Haze Requirements for Navajo Generating Station; Federal Register Vol. 78, Issue
PRORULE
2013-01858
III
ENVIRONMENTAL PROTECTION AGENCY
2013-05-06
EPA-R09-OAR-2013-0009
FRL-9774-1
6560-50-P
2013-01858
Proposed rule.
The Environmental Protection Agency (EPA) is proposing a source-specific federal implementation plan (FIP) requiring the Navajo Generating Station (NGS), located on the Navajo Nation, to reduce emissions of oxides of nitrogen (NO<INF>X</INF>) under the Best Available Retrofit Technology (BART) provision of the Clean Air Act (CAA or Act) in order to reduce visibility impairment resulting from NGS at 11 National Parks and Wilderness Areas. NGS, which was built over 35 years ago, is the largest coal-fired power plant in the West in terms of generating capacity. It is central to the economies of the Navajo Nation and Hopi Tribe and supplies power to the states of Arizona, Nevada, and California. Electricity produced by NGS is also used to power the Central Arizona Project, which supplies surface water to three counties and numerous Indian tribes in Arizona. NGS is projected to continue operating at least until 2044. EPA is proposing to require NGS to achieve a nearly 80 percent reduction of its current overall NO<INF>X</INF> emission rate. Our analysis indicates that installation of controls to achieve this reduction would result in significant visibility improvement that is well-balanced with the cost of those controls. For a number of reasons, including the importance of NGS to numerous Indian tribes located in Arizona and the federal government's reliance on NGS to meet the requirements of water settlements with several tribes, EPA is proposing an alternative to BART that would provide flexibility to NGS in the schedule for the installation of new control equipment. We also describe other compliance schedules for consideration and comment. We recognize that there may be other approaches that could result in equivalent or better visibility benefits over time and that there may be changes in energy demand, supply or other developments over the next several decades that may change electricity generation on the Navajo Nation. EPA encourages a robust public discussion of our proposed BART determination and alternative, the additional alternatives described herein, and other possible approaches. EPA is prepared to issue a supplemental proposal if approaches other than the proposed BART determination or proposed alternative articulated in this notice are identified as satisfying the requirements of the Clean Air Act and meeting the needs of the stakeholders. EPA is committed to continuing to engage with stakeholders to develop a final FIP that maintains benefits to tribes and the regional economy while improving visibility in many of our nation's most treasured National Parks and Wilderness Areas.
Comments must be submitted no later than May 6, 2013.
Anita Lee, EPA Region 9, (415) 972- 3958, r9ngsbart@epa.gov.
Environmental Protection
Administrative Practice and Procedure
Air Pollution Control
Indians
Intergovernmental Relations
Reporting and Recordkeeping Requirements
Air Quality Implementation Plans; Approvals:
Navajo Nation; Regional Haze Requirements for Navajo Generating Station
,
r9ngsbart@epa.gov
http://pah.cert.ucr.edu/aqm/308/bart.shtml
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Vol. 78, no. 24
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2013-02-05
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