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

Air Quality | CHS Inc.- CHS Laurel Refinery

  • October 01 2025

The Department of Environmental Quality has prepared a Department Decision regarding Operating Permit #OP1821-23, for CHS Inc.- CHS Laurel Refinery.

Location:

  • S½, Section 16, Township 2 South, Range 24 EastA
  • Yellowstone

Associated Materials:

Facility Appeal Period Ends: 

  • November 1, 2025 11:59pm

Contact: Craig Henrikson


Tags: Air and Public Notice