Air Operating Permits

Spokane Clean Air administers the Federal Air Operating Permit (AOP) program in Spokane County. Major emission sources and other sources identified by EPA are required to obtain an AOP. Major sources are defined as facilities with a potential to emit any of the following:

Each AOP contains all existing air quality requirements in a single document. Sources must certify their compliance status with all requirements and self-report any deviations. Facilities currently in the program are listed below alphabetically, along with links to their permit documents.


Facility Name/Address Comments/Documents

City of Spokane - Northside Landfill 
Municipal Solid Waste Landfill

5502 Nine Mile Road
Spokane, WA 99208
Renewal#2 Issued: 7/17/17
Expires on 7/16/22
Permit Renewal #2
Statement of Basis Renewal #2

City of Spokane - Spokane Regional
Solid Waste System
Municipal Solid Waste Combustion

Waste-to-Energy Plant
2900 S Geiger Blvd
Spokane, WA 99204
Renewal #2 Issued: 5/28/13
Expires: 5/27/18
  Permit Renewal #2
  Statement of Basis Renewal #2

Fiber-Tech Industries Inc.
Fiberglass Reinforced Plywood Manufacturer
3808 N. Sullivan Rd., Bldg. 31
Spokane Valley, WA 99216
Renewal #2 Issued: 8/6/13
Expires: 8/5/18
Permit Renewal #2
Statement of Basis Renewal #2
Inland Empire Paper Co.
Newsprint Paper Mill

3320 N Argonne
Spokane, WA 99212-2099

Renewal #3 Issued: 10/23/2013
Expires: 10/22/2018
Permit Renewal #3
Statement of Basis Renewal #3

Kaiser Aluminum Washington, LLC
Aluminum Sheet and Plate Rolling Mill

Trentwood Works
15000 E Euclid Avenue
Spokane Valley, WA 99215

Renewal #2 Issued: 10/30/17
Expires: 10/29/22 
Permit Renewal #2
Statement of Basis Renewal #2

Melcher Manufacturing Company, Inc. 
Fiberglass Loading Ramp Manufacturer

6017 E Mission Avenue
Spokane Valley, WA 99212

Renewal #3 Issued: 1/29/18
Expires: 1/28/23 
Permit Renewal #3
Statement of Basis Renewal #3

Mutual Materials Company
Brick Manufacturer

Mica Brick Plant
10627 South State Route 27
Mica, WA 99023

Renewal #3 Issued: 9/11/15
Expires: 9/10/20
Permit Renewal #3
  Statement of Basis Renewal #3

TransCanada Gas Transmission Northwest Corporation (GTN) - Compressor Station
on Natural Gas Pipeline

315 E. Babb Road
3 miles NW of Rosalia, WA 

Renewal #3 Issued: 9/9/13
Expires: 9/8/18
Revised: 4/28/14
Revision to Permit Renewal #3
Permit Renewal #3
Statement of Basis Renewal #3