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The Air District announced today that it has fined the Marathon Martinez Refinery, which is operated by Marathon subsidiary Tesoro Refining & Marketing Company LLC, $5 million for air quality violations. This is the second largest penalty ever assessed by the Air District.

The Air District has fined Marathon Martinez Refinery, which is operated by Marathon subsidiary Tesoro Refining & Marketing Company LLC, $372,500 for 13 Notices of Violation that include tank-related violations, uncertified pieces of equipment at their on-site gas dispensing facility and reporting delays.

Localized air quality impacts may occur as Marathon Refinery in Martinez idles operations.

The Air District is convening a community workgroup to inform development and implementation of our new Particle Fallout Sampling Program for refinery communities. We are looking for people who live or work near the Chevron, Marathon, MRC, Phillips 66, and Valero refineries, or who represent organizations and environmental groups that serve these communities. 

Sep 27, 2024 ... Martinez Renewable Fuels Facility Operated by Tesoro Refining & Marketing Company LLC Flare Minimization Plan - 2024 Update PUBLIC VERSION (Confidential Information Redacted) ...

Aug 27, 2024 ... ...

Sep 25, 2025 ... Martinez Renewable Fuels Facility Operated by Tesoro Refining & Marketing Company LLC Flare Minimization Plan - 2025 Update PUBLIC VERSION (Confidential Information ...

Sep 26, 2019 ... Martinez Refinery Tesoro Refining & Marketing Company LLC A subsidiary of Marathon Petroleum Corporation Flare Minimization Plan - 2019 Update PUBLIC VERSION (Confidential Information Redacted) ...

Sep 30, 2020 ... Martinez Refinery Tesoro Refining & Marketing Company LLC A subsidiary of Marathon Petroleum Corporation Flare Minimization Plan - 2020 Update PUBLIC VERSION (Confidential Information ...

Sep 24, 2021 ... Martinez Refinery Tesoro Refining & Marketing Company LLC A subsidiary of Marathon Petroleum Corporation Flare Minimization Plan - 2021 Update PUBLIC VERSION (Confidential Information ...

Oct 6, 2023 ... Martinez Refinery Tesoro Refining & Marketing Company LLC A subsidiary of Marathon Petroleum Corporation Flare Minimization Plan - 2022 Update PUBLIC VERSION (Confidential Information ...

Oct 9, 2025 ... FOR IMMEDIATE RELEASE: October 9,2025 CONTACT: communications@baaqmd.gov Air District fines Marathon Martinez Refinery $372,550 for violations SAN FRANCISCO – The Bay Area Air District ...

Jun 3, 2024 ... Appendix E – Site Analysis for the Marathon Refinery Community Air Monitoring Station ...

oct. 16, 2024 ... PARA SU PUBLICACIÓN INMEDIATA: 2 de octubre de 2024 CONTACTO: communications@baaqmd.gov El Distrito de Aire impone una multa de $5 millones a Marathon Martinez Refinery La empresa pagará ...

Read about regulations governing oil refinery fenceline monitoring and view plans and data provided by the five local refineries.

Conozca los proyectos de propósito especial de monitoreo de la calidad del aire del Área de la Bahía y consulte información sobre proyectos recientes.

Nov 2, 2022 ... Bay Area Air Quality Management District 375 Beale Street, Suite 600 San Francisco, CA 94105 (415) 749-5000 Statement of Basis For Renewal of the MAJOR FACILITY REVIEW PERMIT ...

Jun 3, 2024 ... Appendix D – Site Analysis for the Martinez Refining Company (MRC) Community Air Monitoring Station ...

Mar 16, 2022 ... AGENDA: 5 Bay Area Alternative Fuels Projects Stationary Source and Climate Impacts Committee Meeting March 21, 2022 Danny Nip, P.E. Senior Air Quality Engineer, Permitting & Refineries ...

Mar 16, 2022 ... BOARD OF DIRECTORS STATIONARY SOURCE AND CLIMATE IMPACTS COMMITTEE COMMITTEE MEMBERS JOHN BAUTERS – CHAIR LYNDA HOPKINS – VICE CHAIR RICH CONSTANTINE JOHN GIOIA DAVID HAUBERT DAVINA HURT TYRONE JUE ...