Air Pollution Control Program Regulation Update Presented to City Council Public Safety and Health Subcommittee Mamie Colburn, M.S, R.S. Missoula City-County Health Dept.

Regulation Update Process Missoula Air Pollution Control Board adopted updates to the Missoula Air Pollution Control Program on September 17 – result of a 8 month public process. 5 Chapters were updated to address federal updates to the fine particulate matter (PM 2.5 ) health based standard. Majority of Changes to the County area outside city limits Needs to be ratified by City Council, County Commissioners, and State Board of Environmental Review.

Time for Updates… Fall 2006 national PM hour standard moved from 65 ug/m3 to 35 ug/m3.

Missoula’s Running 24-Hour PM 2.5 Standard Design Values 2002 – – – – µg/m3 39 µg/m3 41 µg/m µg/m3 (Based on three year average of yearly 98th percentile 24-hr values) Health Department is charged with protecting public health by protecting the standard. Don’t want to become non-attainment and we are already within one microgram for the daily standard!

Solid Fuel Burning Devices the Biggest Source of PM 2.5 in Winter Burning in the urban area has been highly regulated but burning in the county has not. PM 2.5 is a regional pollutant with regional affects.

Relative Emissions of Fine Particles (PM2.5)

Public Process Held 5 Open Houses The Air Pollution Control Board held 4 public hearings. Received and published responses to public comment. Large amount of miss- information at the start of the process. Process was dynamic and the end product was very different then the start. We had four drafts of Chapter 9 and three drafts of Chapter 6.

Board Approved Regulatory Strategies to Help Control PM 2.5 Pollution Acute Situations: limit burning during pollution events in the Air Stagnation Zone and Impact Zone M. Chapter 4: Emergency Episode Avoidance Plan Current solid fuel burning devices: maximum opacity limit of 40% throughout the county New solid fuel burning devices: emissions standards for new installations throughout the county New boilers under 1 million BTU’s: set emissions standards for new installations Chapter 9: Solid Fuel Burning Devices New boilers over 1 million BTU’s: require permits and set emissions standards for new installations Chapter 6: Industrial Sources

Chapter 4 - Stage I Alerts and Stage II Warnings Air Stagnation Zone (Blue) and Impact Zone M (Red)

What’s required in the City Now? No new woodstove installations No new fireplace installations Approved pellet stoves only Permits required for pellet stoves Removal of most devices at time of sale

What’s required in the county – outside the Air Stagnation Zone - now? No device restrictions No permits required

Chapter 9 - Solid Fuel Burning Devices Allowed Installations throughout the county: EPA certified woodstoves Pellet stoves with 4.1 grams per hour at the minimum burn rate. Outdoor Wood Boilers EPA Phase 2 Other solid fuel burning devices Larger/Multi-Building Heating Devices between 250,000 BTU/hr heat input and 1,000,000 BTU/hr heat input with emission rate that does not exceed 0.9 grams per 10,000 BTU heat input. Ok Not Allowed Prohibited throughout the county: New construction of Fireplaces Installing old or new non approved solid fuel burning devices Installing without a permit New Construction served by an electric utility: Cannot get sole source of heat permit – thus not able to burn during alerts

Close the Permitting Gap: Require permits for smaller boilers between 1,000,000 and 10,000,000 BTU/hr or more. Air Stagnation Zone/ Urban Area Stringent limits already exist because of PM10 non-attainment area but expanding to include larger urban area of Air Stagnation Zone Must meet LAER Cannot exceed.10 lbs PM per million BTU heat input Outside the Air Stagnation Zone, solid fuel burning equipment Must meet BACT Cannot exceed 0.20 lbs PM per million BTU heat input. Chapter 6 - Proposed Solutions – Stationary Sources

Remaining Woodstoves in the Air Stagnation Zone Source of PM 2.5 Program in place to remove these at time of sale Received Public Comment on desire to further reduce these as a source of pollution May be ways to further reduce PM 2.5 from the remaining stoves Outside the Scope of this process Air Pollution Control Board asked the Air Quality Advisory Council to start looking into potential ways to address

Make it clear that citizens adversely affected by a permitting action can request an administrative review Update Language for PM2.5 and Impact Zone M Chapter 14 – Administrative ReviewChapter 2 – Definitions

Summary We are asking this committee to move this forward to the full council.

End