Spokane Regional Clean Air Agency (SRCAA) has issued a draft Chapter 401 Air Operating Permit (AOP) renewal for Mutual Material Company brick manufacturing plant, located at 10627 South State Route 27, Mica, WA 99023. Chapter 401 permits are issued pursuant to Chapter 173-401 WAC and Title V of the Federal Clean Air Act Amendments of 1990. The purpose of the permit is to compile existing air quality requirements into one document and to establish adequate monitoring and recordkeeping to assure compliance with those requirements.
The draft AOP can be found here and statement of basis can be found here.
Additional information regarding this draft permit renewal, including the permit application and relevant supporting information, may be viewed at the SRCAA office, 1610 S Technology Blvd, Suite 101, during normal business hours, 8 a.m. – 4:30 p.m., Monday through Friday.
Public comments on the draft permit may be submitted by 4:30 p.m., November 9, 2025, in writing to SRCAA at the address provided above, or by email to JSouthwell@spokanecleanair.org.
A public hearing may be held if SRCAA determines, within the comment period, that there is significant public interest. Requests for a public hearing must be submitted within the comment period. Any such request must be submitted to SRCAA and must indicate the interest of the person/entity making the request and why a hearing is warranted.
For additional information, including copies of the draft AOP and associated information, contact Joe Southwell at (509) 477-4727, by email at jsouthwell@spokanecleanair.org, or in writing at the address given above.
