EPA Air · stack tests by state and year
Air-emissions stack tests in California, 2024
- 18,905Stack 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 2024; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in California, 2024
- Kern County 7,524
- San Joaquin County 5,176
- Stanislaus County 3,977
- Fresno County 597
- Merced County 538
- Madera County 235
- Kings County 204
- Tulare County 195
- Los Angeles County 169
- San Bernardino County 90
- Monterey County 36
- Orange County 35
- Riverside County 31
- Ventura County 27
- Sacramento County 25
- San Diego County 15
- Placer County 12
- Undetermined County 10
- Santa Cruz County 5
- Humboldt County 3
California, other years
Air-emissions stack tests recorded in California, 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | USMC - YERMO LOGISTICS CNTR | BARSTOW, San Bernardino, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-21 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-08-20 | USMC - YERMO LOGISTICS CNTR | BARSTOW, San Bernardino, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-20 | MCGRATH PEAKER GENERATING STATION | OXNARD, Ventura, CA | Pass | Local |
| 2024-08-19 | USMC - YERMO LOGISTICS CNTR | BARSTOW, San Bernardino, CA | Pass | Local |
| 2024-08-19 | ELEMENTS SPECIALITIES | NEWBERRY SPRINGS, San Bernardino, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.