WESTAR Planning Committee Committee Update Spring Business Meeting 2010 Denver, CO Diane Arnst, AZ and Curt Taipale, CO

Purpose of Planning Committee Identify air quality issues that have a direct impact on western states Ensure western concerns are considered in the national debate

Representation Two co-chairs serve 2-year staggered terms Chair who bows out is replaced every May by a representative of a different state Participation on monthly calls is high National Park Service and U.S. Forest Service representatives participate in calls to enhance coordination Committee Liaison Ira Domsky is available as a resource

Current Activities Monthly Conference Calls (1st Thursday of the month) Priority Issues Ozone NAAQS comments due 3/22/10 Pollutant transport issues including regional ozone planning and §110(a)(2)(D) SIPs Boundary delineation for new planning areas PM2.5 NAAQS Emission Factors for planning after PM10 Surrogate Policy Exceptional Events Rule Implementation for Ozone & PM10 Oil & Gas air quality impacts, particularly in rural areas Tracking Regional Haze Plan development, submittal & approval

Submitted Comment Letters Ozone Monitoring Network Streamline Exceptional Events Concurrence EPA Reaction Responses expected in Ozone NFRM EPA is modeling western ozone transport Briefed Janet McCabe, Deputy to Regina McCarthy, on WESTAR’s Exceptional Events letter EPA EE improvements to be categorized, prioritized and implemented by July 2010

Planning Committee – Leadership Current Co-Chairs Diane Arnst, AZ Curt Taipale, CO WESTAR Board Liaison Ira Domsky, AZ