Air Quality | Calumet Montana Refining LLC
The Department of Environmental Quality has prepared a Department Decision regarding Operating Permit #OP2161-23, for Calumet Montana Refining LLC - Calumet Montana Refining.
Location:
- NE¼, Section 1, Township 20 North, Range 3 East
- Cascade County
Associated Materials:
Facility Appeal Period Ends:
- August 27, 2026 11:59pm
Contact: Craig Henrikson
Accommodation statement:
DEQ will make reasonable accommodations for persons with disabilities who wish to participate in this public participation process or need an alternative accessible format of this notice. If you require an accommodation, contact the department no later than 5:00 P.M. on August 17, 2026, to advise us of the nature of the accommodation that you need. Please contact the Department of Environmental Quality at P.O. Box 200901, Helena, Montana 59620-0901; phone (406)444-3490; or e-mail deqair@mt.gov .
Tags: Air and Public Notice