Public Notices - Air Quality Permits

The Air Compliance Program is responsible for administering those portions of the Clean Air Act (CAA) of Montana (Section 75-2-101 et seq., MCA) and companion regulations pertaining to compliance of air emissions from various types of facilities including delegated federal regulations.

Public Notices
Final Air Quality Permits (2010-Present)
 

Notes: For recent final permits, click the link above. For permits before 2010 please see the Data Search Tools.

The below list includes:

  • Montana Air Quality Permits (MAQPs)
  • Title V Operating Permits (OPs)

Use the field below to search by Permit Number, Facility Name, Location, or description of the facility.

           
PermitNumber Facility/Permit Facility Description/Source Time Frame Site Location  

OP1564-17

TRD1564-17

 Exxon Mobil Corporation Billings Petroleum Refinery Public Comment Period Ends May 24, 2021 South ½ of Section 24 and North ½ of Section 25, Township 1 North, Range 26 East, in Yellowstone County Shawn Juers

 
OP2736-14 TRD2736-14 OneOK Rockies Baker Gas Plant EPA's 45-day Review ends June 7, 2021 SW ¼ of SW ¼ of Section 6, Township 7 North, Range 60 East in Fallon County Troy Burrows
OP2974-14 TRD2974-14 Northern Border Pipeline Company - Compressor Station No. 3 Natural Gas Compressor Station Public Comment Period Ends June 7, 2021 NE ¼ of Section 6, Township 28 North, Range 57 East, Roosevelt County, Montana John Proulx
1993-22 American Chemet Oxide Manufacturing Facility Appeal Period Ends May 5, 2021 Northeast ¼ of Section 36, Township 10 North, Range 3 West, Lewis and Clark County Craig Henrikson
1564-34 Exxon Mobil Corporation Billings Petroleum Refinery Public Comment Period Ends May 4, 2021 Southern half of Section 24 and the northern half of Section 25, Township 1 North, Range 26 East, in Yellowstone County Shawn Juers
3211-05 Basin Creek Power Electrical Generating Unit Appeal Period Ends May 17, 2021 Section 18, Township 2 North, Range 7 West, in Silver Bow County Craig Henrikson
OP4255-04 TRD4255-04 NorthWestern Energy – Dave Gates Generating Station at Mill Creek Electric Generating Units  EPA's 45-day Review ends June 1, 2021

NW¼ of Section 17 and the SW ¼ of Section 8, Township 4 North, Range 10 West, Deer Lodge County

 Julie Ackerlund
OP2991-03 TRD2991-03 United States Department of Public Health and Human Services, National Institutes of Health – Rocky Mountain Laboratories  Medical Research Facility EPA's 45-day Review ends May 28, 2021 NE ¼ of Section 36, Township 6 North, Range 21 West, Ravalli County John Proulx
OP4256-03 TRD4256-03 Basin Electric Power Cooperative Culbertson Generating Station Appeal Period Ends May 14, 2021

Section 5, Township 28 North, Range 57 East, Roosevelt County

 Troy Burrows
OP0691-08 TRD0691-08 MDU Lewis and Clark Station Electrical Generating Unit Appeal Period Ends May 12, 2021 Southwest ¼, Section 9, Township 22 North, Range 59 East, Richland County Craig Henrikson
2933-06 A.B. Energy LLC/Prairie Dell Cascade Gas Plant Natural gas compressor station Appeal Period Ends May 7, 2021 Northeast ¼ of Section 34, Township 34 North, Range 2 West in Toole County Julie Ackerlund
1689-09 Barrick Golden Sunlight Mine Gold Mine Public Comment Period Ends April 20, 2021 Township 2 North, Range 3 West, Jefferson County Craig Henrikson
OP2484-07 TRD2484-07 WBI Energy Transmission Cabin Creek Compresson Station Natural gas compressor station EPA's 45-day Review ends May 16, 2021

East ½ of Southeast ¼ of Southeast ¼ of Section 16, Township 10 North, Range 58 East

 Troy Burrows
1993-22 American Chemet Corporation Oxide Manufacturing Facility Public Comment Period Ends April 16, 2021 Northeast ¼ of Section 36, Township 10 North, Range 3 West, Lewis and Clark County Craig Henrikson
2161-34 Calumet Montana Refining, LLC Great Falls Petroleum Refinery Public Comment Period Ends April 29, 2021 NE¼ of Section 1, Township 20 North, Range 3 East, in Cascade County Shawn Juers
3211-05 Basin Creek Power Electrical Generating Facility Public Comment Period Ends April 14, 2021 Section 18, Township 2 North, Range 7 West, in Silver Bow County Craig Henrikson
3034-03 Wilderness Funeral Homes/Hi-Line Crematory Human Crematory/Incinerator Public Comment Period Ends April 26, 2021 Section 18, Township 30 North, Range 30 East, Phillips County Julie Ackerlund
OP2814-06 TRD2814-06 WBI Energy - Vida Compressor Station Natural gas compressor station Public Comment Period Ends April 25, 2021

North ½ of Northeast ¼ , Section 27, Township 25 North, Range 49 East, McCone County

 Troy Burrows
OP1689-01 TRD1689-01 Barrick Golden Sunlight Mine Gold Mine EPA's 45-day Review ends May 6, 2021 NW1/4 Section of NW Section 29 Township 2N, Range 3W, Jefferson County Craig Henrikson
OP3237-04 TRD3237-04 SSSi-Matrix (Lubrizol) Production of silicon-based medical devices EPA's 45-day Review ends May 2, 2021

SW¼ of Section 31, Township 7 North, Range 20 West, Ravalli County

 Troy Burrows
OP2979-14 TRD2979-14 Northern Border Pipeline Company Natural Gas Compressor Station Public Comment Period Ends April 16, 2021

NE ¼ of SE ¼ of Section 12, Township 33 North, Range 38 East, Valley County

 John Proulx
OP2282-09 TRD2282-09 Magris Talc USA, Inc. Talc Processing Plant Appeal Period Ends April 19, 2021 NW ¼, Section 36, Township 2 North, Range 1 East, Gallatin County John Proulx
OP2736-14 TRD2736-14 OneOK Rockies - Baker  Gas Plant Public Comment Period Ends April 12, 2021 SW ¼ of SW ¼ of Section 6, Township 7 North, Range 60 East in Fallon County Troy Burrows
OP2974-14 TRD2974-14

Northern Border Pipeline Company -Compressor Station No. 3

 Natural Gas Compressor Station Public Comment Period Ends April 9, 2021 NE ¼ of Section 6, Township 28 North, Range 57 East, Roosevelt County John Proulx