List of Approved Permits

Approved Air Operating Permits

Permit Number
Source Name
Date Issued
Documents                          
12048 Arclin Surfaces Inc.
January 27, 2023 - Renewal
Air Operating Permit (PDF)

Statement of Basis (PDF)
11339 Ash Grove Cement Company
May 14, 2004
(Administrative Amendments - July 13, 2007, December 2, 2010, December 23, 2013, June 13, 2018, December 20, 2022)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
13117 Boeing (Auburn)
December 2, 2024 - Renewal
(Administrative Amendment - October 30, 2025)
Air Operating Permit (PDF)

Statement of Basis (PDF)
Attachments (PDF)
13120 Boeing (Everett)
September 12, 2008
(Administrative Amendment - May 20, 2009, June  8, 2009, October 10, 2012, July 25, 2019, September 4, 2020, April 3, 2023, April 3, 2024, September 20, 2024.)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
17771 Boeing (Frederickson)
April 22, 2020 - Renewal
(Administrative Amendment - November 2, 2022, September 27, 2023)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
21147 Boeing (NBF Plant 2, Combined)
August 1, 2025 - Renewal
(Administrative Amendment - August 6, 2025)
Air Operating Permit (PDF)

Statement of Basis (PDF)
Attachments (PDF)
13125 Boeing (Renton)
December 11, 2017 - Renewal
(Administrative Amendment - May 14, 2019, October 21, 2019, September 4, 2020. October 12, 2021, March 26, 2024)
Air Operating Permit (PDF)

Statement of Basis (PDF)
Attachments (PDF)
10645 Capital Power Corpooration (formerly Atlantic Power dba Frederickson Power LP) April 20, 2023 - Renewal
(Administrative Amendment - January 11, 2024)
Air Operating Permit (PDF)
29463 Carlisle Construction Materials Incorporated May 28, 2021
(Administrative Amendment - November 30, 2022, October 28, 2025)


Air Operating Permit (PDF)
13786 Centrio (Formerly Enwave Seattle)
January 21, 2025 - Renewal Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
29632 Fluid Motion LLC July 9, 2024 Air Operating Permit (PDF)

11285 Franz Northern Division - 6th Avenue
May 23, 2023 - Renewal
Air Operating Permit (PDF)
Statement of Basis (PDF)
10873 Franz Northern Division - Weller Street
October 31, 2023 - Renewal
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
11820 Graymont Western US, Inc.
May 4, 2007
(Administrative Amendment - May 6, 2019)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
17796 Kenworth Truck Company (Renton) October 1, 2025 - Renewal

Air Operating Permit (PDF)

10088 King County Wastewater Treatment Division West Point Treatment Plant April 24, 2024 - Renewal Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
10138 King County Solid Waste Op Sec (Cedar Hills)
August 4, 2023 - Renewal
(Administrative Amendment - August 6, 2025)

Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
10281 Nucor Steel (Formerly Birmingham Steel)
October 29, 2015
(Administrative Amendment - February 14, 2024)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
10028 Puget Sound Energy (Frederickson)
July 22, 2022 - Renewal
Air Operating Permit (PDF)

Statement of Basis (PDF)
21177 Puget Sound Naval Shipyard
December 31, 2003
December 13, 2004 - Minor Permit Modification
(Administrative Amendment - July 13, 2016, October 22, 2019, December 30, 2020, July 12, 2023)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
12593 U.S. Oil and Refining Company
December 29, 2011
(Administrative Amendments - May 3, 2012, May 11, 2017, September 24, 2019)
Air Operating Permit (PDF)
Attachments (PDF)

Statement of Basis (PDF)
Attachments (PDF)
21320 University of Washington, Power Plant and Hospital November 27, 2001
(Administrative Amendment - July 24, 2018, August 11, 2021)
Air Operating Permit (PDF)
12539 Vigor Shipyards (Formerly Todd Shipyards)
April 14, 2023 - Renewal
Air Operating Permit (PDF)

Statement of Basis (PDF)
20100 Western Pneumatic Tube Co December 10, 2024 Air Operating Permit (PDF)