Carbon Monoxide (CO) and Ozone (O3) Maintenance Plans

The Southwest Clean Air Agency has updated both the Carbon Monoxide Maintenance Plan and the Ozone Maintenance Plan. The Vancouver Air Quality Maintenance Area (AQMA) meets the current air quality health standards for both carbon monoxide and ozone. Each plan shows that the Vancouver AQMA is expected to maintain levels well below the federal health standard until 2016 with existing control strategies.

The Carbon Monoxide Maintenance Plan
  • Vancouver Carbon Monoxide Maintenance Plan adopted March 1, 2007 PDF - 265 kb
  • Appendix B: Carbon Monoxide Monitoring Discontinuation Letter PDF - 187 kb
  • Appendix C: EPA AirData values for Atlas & Cox site, 1996-2005 PDF - 28 kb
  • Appendix D: Vancouver 2002 Seasonal Emission Inventory (for more detail, contact SWCAA) PDF - 106 kb
  • Appendix E: Washington State and SWCAA Rules - Control Strategies and Contingency Plan Regulations
    • SWCAA 400-111 "Requirements for New Sources in a Maintenance Plan Area" PDF - 597 kb
    • WAC 173-422: Motor Vehicle Emission Inspection PDF - 60 kb
    • SWCAA 492: Oxygenated Fuels PDF - 159 kb
    • WAC 173-492: Motor Fuel Specifications for Oxygenated Gasoline PDF - 32 kb
  • Concise Explanatory Statement and Responsiveness Summary PDF - 40 kb For more detail, contact SWCAA at 360-574-3058.
The Ozone Maintenance Plan
  • Vancouver Portion of the AQMA Ozone Maintenance Plan adopted Nov. 2, 2006 PDF - 483 kb
  • Appendix 2: 1992 to 2005 Meteorological Factors Conducive to Ozone Formation PDF - 263 kb
  • Appendix 5: Economic Report to the Metro Council PDF - 1.5 Mb
  • Appendix 7: Vancouver Control Strategies
    • SWCAA 400 - General Regulations for Air Pollution Sources PDF - 240 kb
    • SWCAA 490 - Emission Standards and Controls for Sources Emitting Volatile Organic Compounds PDF - 571 kb
    • SWCAA 491 - Emission Standards and Controls for Sources Emitting Gasoline Vapors PDF - 298 kb
    • SWCAA 493 - VOC Area Source Rules PDF - 130 kb
    • Washington State Regulations - Chapter 173-422 Motor Vehicle Emission Inspection PDF - 166 kb
  • Appendix 8: Other Emission Reduction Programs Information