Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Air Quality | Western Sugar Cooperative

  • August 13 2025

The Department of Environmental Quality (DEQ) has prepared a Decision and Order regarding the proposed modification of a 1998 Stipulation Agreement between The Western Sugar Cooperative – Billings, the United States Environmental Protection Agency, and DEQ related to attainment of the 1971 National Ambient Air Quality Standards for sulfur dioxide (SO2) in the Billings/Laurel area.

 

Location:

  • NE ¼ of Section 10, Township 1 South, Range 26 East
  • Yellowstone County

Associated Materials:

Appeal Period Ends: 

  • August 28, 2025, 11:59pm 

Contact: Eric Merchant  


Tags: Air and Public Notice