Air Quality | Par Montana, LLC., - Billing Refinery| Public Comment Period Ends May 29 , 2025

The Department of Environmental Quality has prepared a Draft Operating Permit #OP1564-22, for Par Montana, LLC., - Billing Refinery.

Location:

• Section 25, Township 1 North, Range 26 East
• Yellowstone County

Associated Materials:

• OP1564-22  
• TRD1564-22

Comment Period Ends: 

• May 29, 2025 11:59PM

Send Comments To:

• DEQAir@mt.gov 

OR

• DEQ Air Quality Bureau

            PO Box 200901

            Helena MT 59620-0901

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Tags: Public Comment and Air