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.

Permit Number Facility/Permit Facility Description/Source Time Frame Site Location DEQ Contact
5243-00 Crusoe Energy Systems, Inc. - Eagle 4-9 CTB Natural gas-fired engines for electricity generation Appeal Period Ends 6/29/20 Section 4, Township 25 North, Range 59 East, in Richland County Ed Warner
OP1821-18 TRD1821-18 CHS Laurel Refinery CHS Laurel Refinery Public Comment Period Ends June 25, 2020 South ½ of Section 16, Township 2 South, Range 24 East, in Yellowstone County, Montana Craig Henrikson
1564-33 Exxon Mobil Corporation Billings Refinery Public Comment Period Ends 6/8/2020 S ½ half of Section 24 and the N 1/2 of Section 25, Township 1 North, Range 26 East, in Yellowstone County, Montana Shawn Juers

OP2619-16 TRD2619-16

 Phillips 66 Company Billings Refinery Appeal Period Ends 6/19/2020 NW ¼ Section 2, Township 1 South, Range 26 East, Yellowstone County Shawn Juers
3336-02 Battle Creek Gathering’s – Battle Creek Compressor Station Natural Gas Compressor Station Public Comment Period Ends June 4, 2020 SW¼ of the SE¼ of Section 26, Township 36 North, Range 19 East, in Blaine County, Montana Julie Ackerlund
1821-43 CHS Laurel Refinery CHS Laurel Refinery Public Comment Period Ends June 17, 2020 South ½ of Section 16, Township 2 South, Range 24 East, in Yellowstone County, Montana Craig Henrikson
3301-05 WBI Energy Transmission, Inc Natural Gas Compressor Station Appeal Period Ends June 1, 2020 Northeast ¼ of Section 2, Township 7 North, Range 59 East, in Fallon County Shawn Juers
5242-00 Bridger Pipeline LLC – Sandstone Station Petroleum storage facility Appeal Period Ends June 1, 2020 SE ¼ of the NE ¼ of Section 4, Township 7 North, Range 58 East, in Fallon County, Montana Troy Burrows
5247-00 Scout Energy Management, LLC Natural Gas Gathering Station Appeal Period Ends June 1, 2020 Northeast ¼ of Section 2, Township 7 North, Range 59 East in Fallon County Shawn Juers
5245-00 NorthWestern Energy - Belfry Compressor Station Natural gas compressor station for transmission Public Comment Period Ends May 29, 2020 NE 1/4 of the SW 1/2 of Section 18, Township 8 South, Range 23 E in Carbon County. Julie Ackerlund
5241-00 Gavilon Grain, LLC – Huntley Facility County grain elevator Appeal Period Ends May 27, 2020 West half of Section 20, Township 2 North, Range 28 East, Yellowstone County, Montana Julie Ackerlund
5243-00 Crusoe Energy Systems, Inc. – Eagle 4-9 CTB Natural gas-fired engines for electricity generation Public Comment Period Ends May 26, 2020 Section 4, Township 25 North, Range 59 East, in Richland County, 47.952861°N,  -104.108639°W Ed Warner
5226-01 OneOK - Baker I and Baker II Pump Station Pump station supporting gas line operations Public Comment Period Ends June 7, 2020 Section 14, Township 9 North, Range 58 East in Fallon County Troy Burrows
2619-38 Phillips 66 Company Billings Refinery Appeal Period Ends 6/5/2020 NW¼ of Section 2, Township 1 South, Range 26 East, in Yellowstone County Shawn Juers
OP0513-16 TRD0513-16 Talen Montana, LLC – Colstrip Steam Electric Station Electricity Generation Appeal Period Ends June 1, 2020 Section 34, Township 2 North, Range 41 East, in Rosebud County Ed Warner
OP3185-05 TRD3185-05 Rocky Mountain Power – Hardin Generating Station Coal Fired Electrical Power Generation Public Comment Period Ends May 27, 2020 Section 12 of Township 1 South, Range 33 East, Big Horn County, Montana Rhonda Payne
5234-01 Crusoe Energy Systems, Inc. - Fletch 5-8 CTB Natural gas-fired engines Appeal Period Ends 5/11/20 Section 32, Township 26 North, Range 59 East, in Richland County Ed Warner
5242-00  Bridger Pipeline LLC – Sandstone Station Crude Oil Storage Facility Public Comment Period Ends April 27, 2020 SE ¼ of the NE ¼ of Section 4, Township 7 North, Range 58 East, in Fallon County, Montana Troy Burrows
3259-05 At Home on the Range Pet Crematorium Appeal Period Ends April 23, 2020 Section 17, Township 1 South, Range 3 East, in Gallatin County, Montana Craig Henrikson
OP3185-05 TRD3185-05 Rocky Mountain Power, LLC Hardin Generating Station Public Comment Period Ends April 20, 2020 Section 12 of Township 1 South, Range 33 East, Big Horn County Rhonda Payne
3259-05 At Home on the Range Animal Cremation Public Comment Period Ends April 6, 2020 Section 17, Township 1 South, Range 3 East, in Gallatin County, Montana Craig Henrikson
OP2784-11 
TRD2784-11		 NorthWestern Energy Natural gas compressor station Appeal Period Ends March 23, 2020 SE¼ of the SW¼ of Section 34, Township 6 South, Range 21 East, Carbon County, Montana Ed Warner

TRD0513-15
OP0513-15

 Talen Montana, LLC – Colstrip Steam Electric Station Electric Generating Facility Appeal Period Ends March 2, 2020 Section 34, Township 2 North, Range 41 East, Rosebud County, Montana Ed Warner

OP2967-12
TRD2967-12

 Exxon Mobil Corporation ExxonMobil Billings Terminal Public Comment Period Ends January 20, 2020 Section 25, Township 1 North, Range 26 East, Yellowstone County Shawn Juers
OP0513-15
TRD0513-15		 Talen Montana, LLC - Colstrip Steam Electric Station Electric generating facility EPA's 45-day Review ends January 9, 2020 Section 34, Township 2 North, Range 41 East, Rosebud County, Montana Ed Warner

OP2161-14
TRD2161-14

 Calumet Montana Refining, LLC Great Falls Petroleum Refinery Public Comment Period Ends December 4, 2019 Section 1, Township 20 North, Range 3 East, in Cascade County, Montana Shawn Juers

OP0513-15
TRD0513-15

 Talen Montana, LLC – Colstrip Steam Electric Station Electric Generating Facility Public Comment Period Ends November 18, 2019 Section 34, Township 2 North, Range 41 East, Rosebud County, Montana Ed Warner