Related Documents
Final Report: Safety Culture Assessment Report (November 18, 2024)
Final Report: Incident Investigation Report (September 2024)
MRC Oversight Committee Safety Culture Draft Report Presentation (Aug. 15, 2024)
Final Report: Screening Level Human Health and Ecological Risk Assessment (Feb. 2024)
Fluid Catalytic Cracking Unit Safety Inspection Report (Sept. 8, 2023)
Risk Assessment Presentation (June 8, 2023)
Risk Assessment Executive Summary (June 8, 2023)
Media Release: Risk Assessment Finds Martinez Refinery Release Did Not Increase Risk of Exposure to Hazardous Metals in Local Soils (June 8, 2023)
Spent Catalyst Release FAQs (updated Jan. 11, 2023)
Air District Summary Report: Mapping Dust Fallout from the November 2022 MRC Incident (April 5, 2023)
Air District Presentation to Martinez City Council - Includes Plume Modeling Map (April 5, 2023)
Martinez Refining Company – 2022 Hazmat Release Incident
This page contains information related to the accidental release of up to 24 tons of metal-laden "spent catalyst" from the Martinez Refining Company (MRC) on Nov. 24-25, 2022.
The County hired a toxicologist, TRC, to take soil samples from affected areas and analyze those samples for potential health concerns. TRC reported that the release did not increase risk to public health from exposure to hazardous metals in the soil.
MRC Claims Line
Call 800-542-7113 to contact Martinez Refining Company regarding concerns related to the Nov. 24-25, 2022 release or to speak with a company representative.
Note: Contra Costa County does not participate in or maintain this line.