Biomass - Air Quality  Commercial/Institutional Biomass Boilers (fuels-for-schools)  July, 2008 meeting follow-up  Small Boiler Area Source MACT  Woodstove NSPS  NSPS revision timeframe  ‘Affected facilities’  Work Group recommendations

Commercial/Institutional Biomass Boilers  WESTAR, NESCAUM, EPA, FLM meeting, July, 2008  Discussion of interests ● Air quality ● Biomass utilization  Discussion of draft work group products ● Estimating Emissions and Exposure ● Control Technology/Siting Criteria ● Mitigation Approaches to Minimize Risk ● Messaging Small Boiler Area Source Rule, July, 2009  Control Technology Paper, March, 2009  NESCAUM Model Rule, April, 2009

Small Boiler Area Source Rule  Court-ordered area source rule for small institutional and commercial boilers  Proposal - July 15, 2009  Promulgation - July 15, 2010  MACT levels per Section 112(c)(6)  Will likely require stringent air toxics emission limits for new sources based on high efficiency boiler and fabric filter combinations  Existing source limits to be determined  Note: The definition of “waste” versus “fuel” is still to be decided. If “waste” includes woody biomass, then those boilers will be subject to stringent Section 129 rules [already promulgated].

Wood Stove NSPS Review Request April 29, 2008 WESTAR/NESCAUM joint letter to EPA requesting:  “review and revision of the current residential wood heater/ indoor wood stove NSPS to capture the broader suite of RWD (residential wood heating devices)”  “fireplaces, masonry heaters, pellet stoves, and indoor and outdoor wood boilers, furnaces…we urge EPA to develop standards…”

Wood Heater NSPS Timeline  Wood Stove NSPS – 1988  Wood Stove NSPS Review FY09  Stakeholder meetings  Wood Stove NSPS Revision Proposal – FY10 [tighten emission level, close loopholes, add pellet stoves]  Wood Stove NSPS Revision Promulgation FY11

Other Appliance Timelines?  OWHH Voluntary Program  Phase 1 level –started January 2007; ends March 31, 2010  Phase 2 level –started October 2008  NSPS proposal FY11  IH [hot air furnaces] Voluntary Program – September 2009?  NSPS proposal FY11  Low-mass Fireplace voluntary program – Phase 1 and Phase 2 concurrently starting March 2009  NSPS proposal FY11  Masonry Fireplace Voluntary Program – Schedule tbd  NSPS proposal FY11  Masonry Heater Voluntary Program – Schedule tbd  NSPS proposal FY11

Work Group Recommendations  Tighten Standards for Catalytic, Non-Catalytic and Pellet appliances  Remove exemptions (i.e. expand applicability)  Allow voluntary standards to produce ‘Best Demonstrated Technology’  Timely NSPS Regulation of boilers, furnaces, and fireplaces

WESTAR State Participants  Rachel Sakata, Oregon  Rod Tinnemore, Julie Oliver, Washington  John Coefield, Eric Merchant, Deb Wolfe, Montana  Michael Harris, Colorado