REGIONAL HAZE IMPLICATIONS TO WESTERN POWER GENERATORS

• Jurisdiction: United States

Air Quality Challenges Facing the Natural Resources Industry in the Western United States
(Nov 2007)
CHAPTER 8A
REGIONAL HAZE IMPLICATIONS TO WESTERN POWER GENERATORS
Kevin Wanttaja
Manager, Environmental Services
Salt River Project
Phoenix, Arizona

SRP Power Plants Subject to Regional Haze Regulations

█ Arizona -- Coronado Generation Station

█ Petrified Forest, Mount Baldy

█ State Jurisdiction

█ Arizona/Navajo Lands -- Navajo Generating Station

█ Grand Canyon, Bryce, Zion, Canyonlands, Mesa Verde -- 11 National Park and Wilderness Areas

█ EPA Region 9 Jurisdiction

█ Participant Plants

█ Hayden/Craig -- Colorado

█ Four Corners -- New Mexico/Navajo Lands

█ Mohave -- Nevada

[Page 8A-2]

SRP Navajo Generating Station

Protecting Visibility Is Important

[Page 8A-3]

Regional Haze Background

█ Regulation to address visibility impairment due to man-made regional haze in 154 federal Class 1 areas

█ Haze causing pollutants emitted directly as fine particles or as formed as secondary particles from gaseous emissions

█ Long-range transport requires regional approach to control

█ Requires all states to revise SIPs to establish:

█ Reasonable further progress (RFP) goals to improve visibility and ensure not degradation on clearest days. Glide path of annual improvement leading to "natural visibility" by 2064

█ Long term strategies including enforceable measures to meet RFP goals

█ Emission limits for older stationary sources based on "Best Available Retrofit Technology"

Regional Haze Strategy

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