See Public Participation Serious Area PM2.5 State Implementation Plan (SIP) Development for more info.

Public Comments Received

• Big West Oil, LLC
  (March 27, 2025)
• Big West Oil, LLC.
  (August 15, 2018)
• Chevron
  (August 15, 2018)
• Chevron
  (March 27, 2025)
• Compass Minerals
  (August 15, 2018)
• Environmental Protection Agency 
• Heal Utah, Western Resource Advocates, Sierra Club Utah Chapter
  (August 15, 2018)
• Northrop Grumman 
  (August 15, 2018)
• Rio Tinto Kennecott 
  (August 15, 2018)
• Tesoro Refining Marathon Refinery
  (March 27, 2025)
• Tesoro Refining & Marketing Company 
  (August 15, 2018)
• Utah Petroleum Association
  (March 27, 2025)
• Utah Petroleum Association 
  • Utah Petroleum Association (Supplemental Comments)