Overview

• The violations stemmed from inspections that found tank problems, uncertified equipment at an on-site gas dispensing facility, and delays in required reporting.
• The Air District said all issues have been addressed and that fixing them should minimize future excess emissions from the facility.
• A portion of the penalty will fund community projects focused on reducing pollution and improving public health.
• The refinery, operated by Marathon’s Tesoro Refining & Marketing Company near Martinez, said the issues were corrected and reaffirmed its environmental commitments.
• The enforcement follows a $5 million fine in October 2024 for 59 earlier violations and an August agreement to add six-point fenceline monitoring with a $75,000 payment.