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
 

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
OP2459-08
TRD2459-08
Stillwater Mine Underground platinum/palladium mining and milling operation EPA's 45-day Review ends September 27, 2018 Sections 1, 2, 10, 11, 15, 16, 21, and 23, Township 5 South, Range 15 East, Stillwater County, Montana Craig Henrikson
4990-02 ADF International – Montana Fabrication of Structural Metal Public Comment Period Ends August 20, 2018 1900 Great Bear Avenue, Great Falls, Montana Rhonda Payne
5211-00 Transatlantic-Idaho Corp. Portable Crushing/Screening Facility Public Comment Period Ends August 17, 2018 Various in Montana John P. Proulx
2005-14 Ash Grove Portland Cement Plant Public Comment Period Ends August 24, 2018 Sections 12 and 13, Township 9 North, Range 3 West in Jefferson County.  The old quarry and silos are located in Sections 7 and 18 of Township 9 North, Range 2 West in Jefferson County, Montana  Craig Henrikson
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
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
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