Air Quality Update Ozone and Particulate

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Air Quality Update-Ozone and Particulate-

• Commission on the Future of Virginias
  Environment
• November 7, 2002

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Air Quality

• DEQs ambient air monitoring network shows that
  air quality in Virginia is generally good, but
  some areas need improvement
• Levels for SO2, NOx, PM 10 and CO are less than
  50 of health-based standards in all parts of
  Virginia.
• Some areas of Virginia exceed the standards for
  ozone and PM 2.5

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Ozone

• 1-hr standard (will be rescinded once 8-hr
  standard is implemented)
• Must comply with requirements until 8-hr std is
  implemented
• Richmond and Tidewater have been redesignated as
  in attainment for the 1-hour standard
• plans to maintain air quality have been adopted
• Northern Virginia is being bumped up to severe
  non-attainment for the 1-hour standard
• Exceeded 1-hour standard on 6 different days in
  2002
• An implementation plan to improve air quality is
  being developed with D.C. and MD

4
Ozone contd.

• 8-hour ozone standard
• EPA proposed in 1997 (litigation delayed
  implementation, but was resolved in support of
  the standards)
• Air quality is evaluated based on the 4th highest
  8-hour value averaged over 3 years
• 3-year average must be 84 ppb or less to meet
  standard
• Draft plan for implementation of new standard
  expected from EPA late 2002 and will be finalized
  late 2003
• Designation of non-attainment areas will be
  finalized in 2004
• State Implementation Plans to improve air quality
  will be due in 2007

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Ozone Designations (8-hr std)

• Designation of Non-Attainment Areas
• Based upon air quality monitoring, ozone
  precursor emissions, population, and expected
  growth
• Virginia submitted recommendations to EPA in 2000
• Richmond area, Hampton Roads, Northern Virginia,
  Fredericksburg area, Frederick County, Roanoke
  Area
• EPA has proposed addition of 4 counties based on
  modeling (Rockingham, Augusta, Albemarle,
  Pittsylvania)
• Revised recommendations are due in April 2003
  will be finalized in 2004
• Recommendations will be similar to those
  submitted in 2000, but may exclude Fauquier
  County, Caroline County and Fredericksburg based
  on most recent monitoring data

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Potential Nonattainment Areas DEQ
Recommendations EPA Additions
Frederick
Shenandoah NP
Northern Virginia
Virginia Recommendations
Fredericksburg
Potential EPA Additions
Rockingham
Augusta
Albemarle
Richmond
Roanoke
Hampton Roads
Pittsylvania
Recommendations made in 2000 based on 1997 to
1999 monitoring data
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Implications of Ozone Nonattainment

• State Implementation Plans to reduce NOx and VOC
• DEQ will work with metropolitan planning
  organizations and local officials to develop each
  SIP
• Plans will vary based on the severity of the
  ozone problem
• The NOx SIP call is expected to solve most ozone
  problems in Virginia
• Transportation Conformity requirements will apply
  1-year after final designation (2005)
• Nonattainment areas will require
• Emissions offsets for permitted facilities
• More stringent pollution controls for permitted
  facilities

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Early Action Compact (EAC)

• If localities enter EAC, nonattainment
  designations and related mandatory actions may be
  delayed
• Takes advantage of national measures and optional
  local measures to achieve air quality goals
• Measures may include early implementation of
  vapor recovery measures, carpooling programs,
  etc.
• DEQ is working with Frederick County and Roanoke
  on this approach
• EAC Requirements
• Agreement by 12/31/02
• Develop plan for local measures to reduce Nox and
  VOC
• Submit plan by 3/2003 and implement plan by May
  2004

9
PM 2.5 Standard

• EPA proposed new standard in 1997 (litigation
  delayed implementation, but was resolved in
  support of the standards)
• 24 hours 65 micrograms/cubic meter
• Annual 15 micrograms/cubic meter
• 24 Hour Standard is being met everywhere in
  Virginia
• Annual standard is being met everywhere except
  for Bristol and Roanoke

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PM 2.5 Designations / SIPs

• Designations will be based on air monitoring
  results
• Proposed designations due 7/03 - 7/04
• Designations finalized by 7/05
• EPA will propose implementation rules spring of
  2003 (March)
• State Implementation Plans will be due after the
  rules are finalized