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)
Permit Number Facility/Permit Facility Description/Source Time Frame Site Location DEQ Contact
3219-02 A.M. Welles, Inc. Portable Crushing/Screening Facility Appeal Period Ends August 2, 2018 Various in Montana John P. Proulx
5207-00 John Muggli Contracting, LLC. dba Wolf Creek Scoria Portable Crushing/Screening Facility Appeal Period Ends July 27, 2018 Various in Montana John P. Proulx
0513-10 Talen Montana, LLC Colstrip Steam Electric Station Appeal Period Ends August 10, 2018 Section 34, Township 2 North, Range 41 East, in Rosebud County, Montana Ed Warner
1546-09 ONEOK Rockies Midstream, LLC. Natural Gas Processing Plant Appeal Period Ends July 26, 2018 NE¼ of the NE¼ of Section 20, Township 28 North, Range 58 East, Roosevelt County, Montana John P. Proulx
1821-40 CHS, Inc. Laurel Refinery Appeal Period Ends July 24, 2018 The South ½ of Section 16, Township 2 South, Range 24 East, in Yellowstone County, Montana Craig Henrikson
2653-06 Stillwater Mining Company – East Boulder Mine Underground platinum/palladium mining and milling Appeal Period Ends July 25, 2018  Sections 2, 3, 11, 19, 26, and 34, Township 4 South, Range 13 East, in Sweet Grass County, Montana Rhonda Payne
OP2459-08
TRD2459-08		 Stillwater Mine Underground platinum/palladium mining and milling operation Public Comment Period Ends July 25, 2018 Sections 1, 2, 10, 11, 15, 16, 21, and 23, Township 5 South, Range 15 East, Stillwater County, Montana Craig Henrikson
5207-00 John Muggli Contracting, LLC. dba Wolf Creek Scoria Portable Crushing Facility Public Comment Period Ends July 9, 2018 Various in Montana John P. Proulx
OP3821-03
TRD3821-03		 Fiberglass Structures Inc. – Tank Division Production of fiberglass tanks and other products Appeal Period Ends July 20, 2018

1202 East Railroad Avenue, Laurel, MT 59044

 Rhonda Payne
1821-40 CHS, Inc. CHS Laurel Refinery Public Comment Period Ends: July 5, 2018 The South ½ of Section 16, Township 2 South, Range 24 East, in Yellowstone County, Montana Craig Henrikson
5182-01 Tesoro- Sidney Station Crude Oil Unload Facility Public Comment Period Ends: July 20, 2018 Southwest ¼ of the Northeast ¼ of Section 18, Township 22N, Range 60E in Richland County, Montana Craig Henrikson
2635-18 Stillwater Mining Company – Columbus Metallurgical Complex Platinum group precious metals (PGM) smelter and base metals refinery Appeal Period Ends July 2, 2018  Section 27, Township 2 South, Range 20 East, Stillwater County, Montana Rhonda Payne
2653-06 Stillwater Mining Company – East Boulder Mine Underground platinum/palladium mining and milling Public Comment Period Ends June 27, 2018 Sections 2, 3, 11, 19, 26, and 34, Township 4 South, Range 13 East, in Sweet Grass County, Montana Rhonda Payne
3219-02 A.M. Welles, Inc. Portable Crushing/Screening Facility  Public Comment Period Ends July 11, 2018 Various locations throughout Montana John P. Proulx
0513-10 Talen Montana, LLC Colstrip Steam Electric Station Public Comment Period Ends June 25, 2018 Section 34, Township 2 North, Range 41 East, in Rosebud County, Montana Ed Warner
5200-00 Tintina Montana Black Butte Copper Project (Underground Mine and Mill) Public Comment Period Ends July 5, 2018  Sections 24, 25, and 36 in Township 12N, Range 6E, and Sections 19, 29, 30, 31, and 32 in Township 12N, Range 7E, Meagher County, Montana Craig Henrikson
1546-09 ONEOKE Rockies Midstream, LLC – Bainville Compressor Station Natural Gas Processing Facility Public Comment Period Ends July 5, 2018 NE¼ of the NE¼ of Section 20, Township 28 North, Range 58 East, Roosevelt County, Montana John P. Proulx
OP3821-03
TRD3821-03		 Fiberglass Structures Inc. – Tank Division Production of Fiberglass Tanks and Other Products EPA's 45-day Review ends June 18, 2018

1202 East Railroad Avenue
Laurel, MT  59044

 Rhonda Payne
OP3821-03
TRD3821-03		 Fiberglass Structures, Inc. – Tank Division Production of fiberglass tanks and other products. Public Comment Period Ends March 26, 2018

1202 East Railroad Avenue, Laurel, MT  59044

 Rhonda Payne
5106-00 Otter Creek Coal, LLC Bituminous Coal and Lignite Surface Mine Public Comment Period Ends June 10, 2015 Sections 3, 4, 9, 10, 12, 13, 14, 15, 16, 21, 22, 23, 24, 25, and 26 in Township 4S, Range 45E in Powder River County, MT Rhonda Payne
5106-00 (Application) Otter Creek Coal, LLC Surface Coal Mine Received November 6, 2014 Sections 3, 4, 9, 10, 11, 12, 13, 14, 15, 16, 21, 22, 23,
24, 25, 26; Township 4 South, Range 45 East, Powder River County		 Ed Warner