Air Quality | NorthWestern Energy–Mainline Compressor #1| Public Comment Period Ends May 1, 2026

The Department of Environmental Quality has prepared a Draft Operating Permit #OP2428-16, for NorthWestern Energy–Mainline Compressor #1.

Location:

• South ½ of Section 22, Township 33 North, Range 5 West, Glacier County
• Glacier County
  

Associated Materials:

• OP2428-16
• TRD2428-16

Comment Period Ends:                             

• May 1, 2026 11:59PM

Send Comments To:

• Troy Burrows

OR

• DEQ Air Quality Bureau
   PO Box 200901
   Helena MT 59620-0901

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Tags: Public Comment and Air