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Advisory
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Permit Public Comment Extension
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
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Advisory
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Air Quality Advisory
Smoke from the Pickett Fire is expected to impact air quality in Sonoma, Napa and Solano counties on Thursday and Friday. Residents in affected areas should stay alert to news coverage and health warnings related to smoke. Check air quality at fire.airnow.gov and take steps to protect your health from smoke. Learn how at www.baaqmd.gov/wildfiresafety. Pollution levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect.
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Major Facility Review
Learn about the Air District’s Major Facility Review (Title V) Program, and the facilities subject to its requirements.
Major Facility Review Program
Created by Congress as an amendment to the Clean Air Act, Major Facility Review Program (Title V) requires large industrial facilities to issue a single comprehensive operating permit that shows all federal, state, and local air quality requirements. The program includes requirements to monitor emissions and make regular reports. See Air District Regulation 2, Rule 6.
Key features of the Major Facility Review process include:
- Review of all federal, state, and local air quality requirements that apply to the facility.
- A public notice and U.S. EPA review period. All comments must be addressed before the initial Title V permit is issued or renewed.
- Federally enforceable requirements may also be enforced via citizen lawsuits.
- The EPA can modify, terminate, or revoke and reissue a permit if necessary.
- Permits must be renewed every five years with the full public notice and EPA review process.
To learn more about the program, view frequently asked questions(129 Kb PDF, 4 pgs, posted 2/27/2025).
Facility Criteria
Facilities subject to Major Facility Review/Title V requirements include:
- Major Facilities – Facilities with the potential to emit pollutants equal to or greater than one or more major source thresholds.
- Phase II Acid Rain Facilities – Electric generation facilities that combust fossil fuels and are subject to Title IV of the Clean Air Act.
- Solid Waste Incinerator Facilities – Facilities that burn solid waste material (except hazardous waste) from commercial, industrial, or general public sources.
- Designated Facilities – Other facilities that emit pollutants the EPA has designated as subject to the requirements of Title V.
Contact Us
Xuna Cai
Supervising Air Quality Engineer, Engineering
415.749.4788 xcai@baaqmd.gov
Last Updated: 9/13/2023