EPA Air · stack tests by state and year
Air-emissions stack tests in California, 2023
- 7,676Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in California during 2023; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in California, 2023
- Kern County 3,964
- Fresno County 1,186
- Stanislaus County 595
- San Joaquin County 551
- Kings County 322
- Madera County 233
- Merced County 226
- Los Angeles County 203
- Tulare County 110
- San Bernardino County 71
- Orange County 70
- Ventura County 26
- Sacramento County 25
- Monterey County 24
- Riverside County 22
- Undetermined County 20
- San Diego County 12
- Placer County 8
- Santa Cruz County 4
- Humboldt County 3
California, other years
Air-emissions stack tests recorded in California, 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-12-07 | ANHEUSER-BUSCH LLC., (LA BREWERY) | VAN NUYS, Los Angeles, CA | Pass | Local |
| 2023-12-07 | PHILLIPS 66 COMPANY/LA REFINERY | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-07 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-07 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | LA CITY DWP- VALLEY GENERATING STN | SUN VALLEY, Los Angeles, CA | Pass | Local |
| 2023-12-06 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-06 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-06 | AIR PRODUCTS AND CHEMICALS INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-05 | SACRAMENTO MUNICIPAL UTILITY DIST. FINANCING AUTHORITY DBA CAMPBELL POWER PLANT | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2023-12-05 | PASADENA CITY, DWP (EIS USE) | PASADENA, Los Angeles, CA | Pass | Local |
| 2023-12-05 | AIR PRODUCTS AND CHEMICALS INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2023-12-05 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-05 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-04 | LA CITY, DWP HARBOR GENERATING STATION | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2023-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-04 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-04 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-01 | LONG BEACH SERRF PROJECT | LONG BEACH, Los Angeles, CA | Pending | Local |
| 2023-11-30 | BETA OFFSHORE | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2023-11-30 | BETA OFFSHORE | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2023-11-30 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-11-30 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.