Controls for New Sources of Toxic Air pollutants

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Controls for New Sources of Toxic Air pollutants

• Washington State Department of Ecology
• Linda Whitcher
• Rich Hibbard

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Topics

• Key elements that changed
• How we chose which chemicals to drop
• De minimis
• First, Second, and Third Tier Review
• SQER vs. Modeling
• 071 Voluntary Limit
• New offsetting provisions
• Other

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Key Elements

• Definitions
• Exempt sources
• Gasoline dispensing facilities, Safety relief
  containers, Fugitive emissions, Dry cleaners,
  Solvent metal cleaners, Chrome Acid Plating,
  Abrasive blasting, Demolition projects involving
  asbestos, and Process vents
• Linked 460 to 400

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Key Elements continued

• Removed pre-determined tBACT
• Perchloroethylene dry cleaners, Petroleum solvent
  dry cleaning systems, Chromic acid plating and
  anodizing, Chromic acid plating and anodizing
  (greater than 1 kilogram), Solvent metal
  cleaners, Abrasive blasting
• New 500 BHP emergency generator exemption

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How did we chose which chemicals to drop

• California OEHHA
• Acute RELs
• Chronic RELs
• URFs Appendix A
• US Dept of Health
• ATSDR Minimal Risk
• Levels (MRL)
• US EPA
• Integrated Risk Information System (IRIS)
• Blend of science and policy

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De Minimis

• How de minimis was set
• What is the basic concept?

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The 3 Tiers

• First tier review
• Second tier review
• Third tier review

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SQER vs. Modeling

• What is the difference between the two?

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071 Voluntary Limit on Emissions

• What could this be used for?

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Other

• Will the rule revision cause more facilities to
  undergo a second tier analysis?
• Fees
• Resources for Sources and LAAs

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Questions