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Air Permits Issued By EPA Region 10

EPA Region 10 serves Alaska, Idaho, Oregon, Washington, and 271 native tribes.

On this page:

Types of Permits Issued

  • PSD - Prevention of Significant Deterioration major source construction permits in "attainment areas."
  • nNSR – Major source construction permits in "nonattainment areas."
  • mNSR – Minor source construction permits in Indian Country.
  • Syn Minor - Synthetic minor source permits in Indian Country.
  • GP-XXXX – General permits or permits by rule in Indian Country identified by one of eleven different source categories (e.g. GP-HMAP is a general permit for a hot mix asphalt plant).
  • Title V – Major source Part 71 operating permits (only in Indian Country in Idaho, Oregon, and Washington).
  • Non-Title V – Federal Air Rules for Reservations (FARR) operating permits (only in Indian Country in Idaho, Oregon, and Washington).
  • OCS – Outer Continental Shelf construction and operating permits (except off the North Slope of Alaska).

Source Categories Eligible for General Permit or Permit by Rule

General permits or permits by rule are now available at EPA's Tribal Minor New Source Review web page for the following source categories:


Current Permits

Current Air Permits Issued by EPA Region 10
Facility Name State City Location Permit Type Issue Date Documents
Empire Lumber Company ID Kamiah Nez Perce Reservation Title V 2016-03-01

Empire Lumber Company Title V Permit and Statement of Basis

Stimson Lumber (formerly Plummer Forest Products) ID Plummer Coeur d'Alene Reservation Title V 2015-05-13 Stimson Lumber Title V Permit and Statement of Basis
Williams Corporation, Northwest Pipeline LLC ID Pocatello Fort Hall Indian Reservation Title V 2015-09-30

Williams Corporation Title V Permit and Statement of Basis

ASCORP Inc dba DEBCO Construction n/a n/a Portable Non-Title V 2010-08-10 ASCORP Non-Title V Permit and Technical Support Document
Columbia Ready Mix, Inc n/a n/a Portable Non-Title V 2010-08-10 Columbia Ready Mix Non-Title V Permit and Technical Support Document
Colville Indian Precision Pine WA Omak Colville Reservation Non-Title V 2007-09-24

Colville Indian Precision Pine Non-Title V Permit and Technical Support Document

CPM Development Corp dba Inland Asphalt Company (#20) n/a n/a Portable Non-Title V 2010-08-10 CPM #20 Non-Title V Permit and Technical Support Document
CPM Development Corp dba Inland Asphalt Company (#25) n/a n/a Portable Non-Title V 2010-08-10 CPM #25 Non-Title V Permit and Technical Support Document
Clearwater Forest Industries ID Kooskia Nez Perce Reservation Non-Title V 2009-03-05 Clearwater Forest Non-Title V Permit and Technical Support Document
Ende Machine & Foundry LLC ID Craigmont Nez Perce Reservation Non-Title V 2013-12-16 Ende Machine & Foundry Non-Title V Permit and Technical Support Document
Granite Construction Company n/a n/a Portable Non-Title V 2012-09-19 Granite Construction Non-Title V Permit and Technical Support Document
Knife River, Inc (Gencor 400) n/a n/a Portable Non-Title V 2012-09-19 Knife River (Gencor) Non-Title V Permit and Technical Support Document
Knife River, Inc (Astec) n/a n/a Portable Non-Title V 2010-08-10 Knife River (Astec) Non-Title V Permit and Technical Support Document
Knife River, Inc (CMI) n/a n/a Portable Non-Title V 2010-08-10 Knife River (CMI) Non-Title V Permit and Technical Support Document
McClarin Plastics, LLC WA Wapato Yakama Reservation Title V 2016-09-28 McClarin Plastics, LLC Title V Air Permit
McClarin Plastics, LLC WA Wapato Yakama Reservation Non-Title V 2016-09-28 McClarin Plastics, LLC Non-Title V Air Permit
Mickelsen Construction, Inc. ID Pocatello Fort Hall Reservation Non-Title V 2014-09-17 Mickelson Construction Non-Title V Permit and Technical Support Document
Neucor, Inc. WA White Swan Yakama Reservation mNSR 2016-04-19

Neucor, Inc. Minor NSR Air Permit and Analysis

Pace International, LLC WA Wapato Yakama Reservation Non-Title V 2006-12-04

Pace International Non-Title V Permit and Technical Support Document

Peak Sand and Gravel, Inc. (Plant #2) ID Plummer Coeur d'Alene Reservation General Permit - SQCS 2018-08-09 Peak Sand and Gravel (Plant #2) SQCS Coverage  Approval and Technical Support Document
Petersen Incorporated Idaho ID Pocatello Fort Hall Reservation Syn Minor 2014-09-30 Peterson Inc. Synthetic Minor Permit and Technical Support Document
Pioneer Asphalt, Inc. OR Pendleton Umatilla Indian Reservation Non-Title V 2013-08-22 Pioneer Asphalt Non-Title V Permit and Technical Support Document
Poe Asphalt Paving, Inc n/a n/a Portable Non-Title V 2009-07-01

Poe Asphalt Non-Title V Permit and Technical Support Document

Silgan Containers Manufacturing Corporation WA Toppenish Yakama Reservation Non-Title V 2015-06-08 Silgan Containers Non-Title V Permit and Technical Support Document
Stimson Lumber Company ID Plummer Coeur d'Alene Non-Title V 2007-09-28

Stimson Lumber Non-Title V Permit and Technical Support Document

Washington Beef LLC WA Toppenish Yakama Reservation Non-Title V 2015-01-23 Washington Beef Non-Title V Permit and Technical Support Document
Yakama Forest Products WA White Swan Yakama Reservation Title V 2015-09-29 Yakama Forest Products Title V Permit and Statement of Basis
Granite Construction Inc. - Omak Facility WA Okanogan Colville Reservation General Permit - HMA 2016-09-22 Granite Construction HMA Request for Coverage Approval and Technical Support Document
Granite Construction Inc. - Omak Facility WA Okanogan Colville Reservation General Permit - SQCS 2016-09-22 Granite Construction SQCS Coverage Approval and Technical Support Document
Central Washington Concrete - Toppenish Quarry WA Toppenish Yakama Reservation General Permit - SQCS 2016-09-28 Central WA Concrete SQCS Coverage Approval and Technical Support Document
Wheeler Rock Products - Wheeler Pit WA Wapato Yakama Reservation General Permit - SQCS 2017-08-11 Wheeler Rock Products SQCS Coverage Approval and Technical Support Document
Wheeler Rock Products - Wheeler Pit WA Wapato Yakama Reservation General Permit - CBP 2017-08-11 Wheeler Rock Products CBP Coverage Approval and Technical Support Document
Seubert Excavators, Inc. (Plant #1) n/a n/a Nez Perce Reservation (Portable) General Permit – SQCS 2018-05-18 Seubert Excavators (Plant #1) SQCS Coverage Approval and Technical Support Document
Seubert Excavators, Inc. (Plant #2) n/a n/a Nez Perce Reservation (Portable) General Permit – SQCS 2018-05-18 Seubert Excavators (Plant #2) SQCS Coverage Approval and Technical Support Document
Seubert Excavators, Inc. (Plant #3) n/a n/a Nez Perce Reservation (Portable) General Permit – SQCS 2018-05-18 Seubert Excavators (Plant #3) SQCS Coverage Approval and Technical Support Document
Valley Paving and Asphalt, Inc. n/a n/a Nez Perce Reservation (Portable) General Permit – HMA 2018-05-18 Valley Paving and Asphalt HMA Coverage Approval and Technical Support Document
Columbia Asphalt & Ready-Mix WA Wapato Yakama Reservation General Permit - HMA 2018-05-25 Columbia Asphalt & Ready-Mix HMA Coverage Approval and Technical Support Document
Columbia Asphalt & Ready-Mix WA Wapato Yakama Reservation General Permit - SQCS 2018-05-25 Columbia Asphalt & Ready-Mix SQCS Coverage Approval and Technical Support Document
DePatco Inc. ID Pocatello Fort Hall Reservation General Permit - HMA 2018-06-27 DePatco HMA Coverage Approval and Technical Support Document
Roy Houck Construction LLC OR Pendleton Umatilla Reservation General Permit - HMA 2018-06-08 Roy Houck Construction HMA Coverage Approval and Technical Support Document

Technical Memoranda

Listed below are the technical memoranda referenced in some permits issued by EPA Region 10.

Biomass boilers »

  • HAP Potential to Emit Emission Factors for Biomass Boilers Located in Pacific Northwest Indian Country
  • Non-HAP Potential to Emit Emission Factors for Biomass Boilers Located in Pacific Northwest Indian Country
  • Procedure to Determine a Biomass Boiler’s Fuel-Heat-Input-To-Steam-Output Ratio

Sawmills »

  • Particulate Matter Potential to Emit Emission Factors for Activities at Sawmills, Excluding Boilers, Located in Pacific Northwest Indian Country
  • EPA Region 10 HAP and VOC Emission Factors for Lumber Drying

Plywood mills »

  • EPA Region 10 HAP and VOC Emission Factors for Veneer Dryer Employing Indirect Steam Heat without Air Pollution Controls