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 |
|---|---|---|---|
| 2025-12-15 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-12-08 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-12-08 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-12-03 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-22 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-20 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-19 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-18 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-07 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-11-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-10-21 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-10-20 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-10-15 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-30 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-30 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-29 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-22 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-19 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-09-16 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-16 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-10 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-09-04 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-21 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-13 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | Earliest FRV determination | Local |
| 2025-08-12 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-08-12 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-30 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-25 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-24 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-24 | WEST CONTRA COSTA SANITARY LANDFILL — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-22 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | HPV day-zero determination | Local |
| 2025-07-02 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — 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.