EPA Air · violations by county and year
High-priority air violations in Contra Costa County, California, 2025
- 284Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Each row below is one violation recorded against a source in Contra Costa County, California during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Contra Costa County facility page.
Contra Costa County, California, 2025
- Inspections 24
High-priority air violations in Contra Costa County, other years
High-priority air violations recorded in Contra Costa County, California, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-05-01 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-05-01 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-05-01 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-30 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-30 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-30 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-29 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-29 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-28 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-28 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-28 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-28 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-04-28 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-24 | LOS MEDANOS ENERGY CENTER — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-16 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-16 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-16 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-16 | CENTRAL CONTRA COSTA SANITARY DISTRICT — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-09 | DELTA ENERGY CENTER — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-02 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | Earliest FRV determination | Local |
| 2025-04-02 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | Earliest FRV determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-04-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-27 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-26 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-26 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-26 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-26 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-25 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-25 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-25 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-24 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-11 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-11 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-03-04 | C & H SUGAR COMPANY, INC — high-priority violation on file | Earliest FRV determination | Local |
| 2025-03-04 | C & H SUGAR COMPANY, INC — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-25 | C & H SUGAR COMPANY, INC — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-25 | C & H SUGAR COMPANY, INC — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-21 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-19 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-10 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-10 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-10 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-10 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-02-07 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-05 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-02-03 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-27 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-14 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-10 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-06 | C & H SUGAR COMPANY, INC — high-priority violation on file | Earliest FRV determination | Local |
| 2025-01-06 | C & H SUGAR COMPANY, INC — high-priority violation on file | Earliest FRV determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-01-02 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
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Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.