EPA Air · violations by state and year
High-priority air violations in California, 2025
- 517Violations
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. Every violation below was recorded against a source in California during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in California, 2025
- Contra Costa County 284
- Alameda County 70
- Solano County 59
- Santa Clara County 36
- Sonoma County 15
- Ventura County 11
- Undetermined County 11
- Marin County 9
- San Joaquin County 6
- San Mateo County 6
- San Bernardino County 3
- Sacramento County 3
California, other years
High-priority air violations recorded in California, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-18 | TOLAND ROAD LANDFILL — high-priority violation on file | SANTA PAULA, Ventura, CA | Earliest FRV determination | Local |
| 2025-12-15 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-12-15 | REPUBLIC SERVICES VASCO ROAD, LLC — high-priority violation on file | LIVERMORE, Alameda, CA | HPV day-zero determination | Local |
| 2025-12-15 | REPUBLIC SERVICES VASCO ROAD, LLC — high-priority violation on file | LIVERMORE, Alameda, CA | HPV day-zero determination | Local |
| 2025-12-10 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-12-10 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-12-08 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-12-08 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-12-08 | REPUBLIC SERVICES OF SONOMA COUNTY — high-priority violation on file | PETALUMA (HISTORICAL), Sonoma, CA | HPV day-zero determination | Local |
| 2025-12-08 | REPUBLIC SERVICES OF SONOMA COUNTY — high-priority violation on file | PETALUMA (HISTORICAL), Sonoma, CA | HPV day-zero determination | Local |
| 2025-12-05 | REDWOOD LANDFILL INC — high-priority violation on file | NOVATO, Marin, CA | HPV day-zero determination | Local |
| 2025-12-05 | REDWOOD LANDFILL INC — high-priority violation on file | NOVATO, Marin, CA | Earliest FRV determination | Local |
| 2025-12-05 | REDWOOD LANDFILL INC — high-priority violation on file | NOVATO, Marin, CA | Earliest FRV determination | Local |
| 2025-12-04 | MCCLELLAN BUSINESS PARK — high-priority violation on file | MCCLELLAN, Sacramento, CA | Earliest FRV determination | Local |
| 2025-12-03 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-12-01 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-25 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-24 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-11-24 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-11-22 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-20 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-19 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-11-19 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-11-19 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-18 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-17 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-12 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-11-07 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-06 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-11-06 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-06 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-05 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-11-03 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-11-03 | AMERICAN MODULAR SYSTEMS | MANTECA, San Joaquin, CA | HPV day-zero determination | Local |
| 2025-11-01 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-10-29 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-10-28 | CHEVRON COGENERATION COMPANY | BAKERSFIELD, Kern, CA | HPV day-zero determination | Local |
| 2025-10-28 | ARCOSA LIGHTWEIGHT, FRAZIER PARK (1603) — high-priority violation on file | FRAZIER PARK, Ventura, CA | Earliest FRV determination | Local |
| 2025-10-27 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-10-27 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-10-24 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-24 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-22 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-10-22 | SIMI VALLEY LANDFILL & RECYCLING CENTER — high-priority violation on file | SIMI VALLEY, Ventura, CA | Earliest FRV determination | Local |
| 2025-10-21 | INTERNATIONAL DISPOSAL CORPORATION OF — high-priority violation on file | SAN JOSE, Santa Clara, CA | HPV day-zero determination | Local |
| 2025-10-21 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-10-21 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | MARTINEZ, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-10-20 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | MARTINEZ, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-10-20 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-20 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-20 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-15 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-15 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-10-15 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | MARTINEZ, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-10-10 | HP HOOD, LLC — high-priority violation on file | SACRAMENTO, Sacramento, CA | Earliest FRV determination | Local |
| 2025-10-03 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-10-01 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-09-30 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-30 | PHILLIPS 66 COMPANY - SAN FRANCISCO REFINERY — high-priority violation on file | RODEO, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-30 | UNITED AIRLINES, SF MAINTENANCE CENTER — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-09-30 | UNITED AIRLINES, SF MAINTENANCE CENTER — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-09-30 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-09-30 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-09-29 | MARTINEZ REFINING COMPANY LLC (PREVIOUSLY SHELL OIL PRODUCTS US, MARTINEZ REF.) — high-priority violation on file | MARTINEZ, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-25 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-09-25 | VALERO REFINING COMPANY - CALIFORNIA — high-priority violation on file | BENICIA, Solano, CA | HPV day-zero determination | Local |
| 2025-09-22 | BROWNING FERRIS INDUSTRIES OF CA,INC — high-priority violation on file | HALF MOON BAY, San Mateo, CA | HPV day-zero determination | Local |
| 2025-09-22 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | MARTINEZ, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-19 | TESORO REFINING & MARKETING COMPANY — high-priority violation on file | MARTINEZ, Contra Costa, CA | Earliest FRV determination | Local |
| 2025-09-18 | BROWNING FERRIS INDUSTRIES OF CA,INC — high-priority violation on file | HALF MOON BAY, San Mateo, CA | HPV day-zero determination | Local |
| 2025-09-16 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-16 | CHEVRON PRODUCTS COMPANY — high-priority violation on file | RICHMOND, Contra Costa, CA | HPV day-zero determination | Local |
| 2025-09-12 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-09-12 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | Earliest FRV determination | Local |
| 2025-09-12 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-09-11 | TESLA MOTORS, INC — high-priority violation on file | FREMONT, Alameda, CA | HPV day-zero determination | Local |
| 2025-09-11 | CITY OF SANTA CLARA — high-priority violation on file | SANTA CLARA, Santa Clara, CA | HPV day-zero determination | Local |
| 2025-09-11 | CITY OF SANTA CLARA — high-priority violation on file | SANTA CLARA, Santa Clara, CA | HPV day-zero determination | Local |
| 2025-09-11 | CITY OF SANTA CLARA — high-priority violation on file | SANTA CLARA, Santa Clara, CA | HPV day-zero determination | Local |
Page 1 of 6NextPage 2
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.