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 |
|---|---|---|---|---|
| 2024-12-11 | PROCTER & GAMBLE PAPER PRODUCTS — high-priority violation on file | OXNARD, Ventura, CA | Pass | Local |
| 2024-12-10 | ORANGE COUNTY SANITATION DISTRICT | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2024-12-10 | ORANGE COUNTY SANITATION DISTRICT | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2024-12-10 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | STATE OF CALIFORNIA PRISON - SACRAMENTO | REPRESA, Sacramento, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Fail | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Fail | Local |
| 2024-12-06 | TESORO REFINING MARKETING COMPANY LLC | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-03 | LA CITY, DWP SCATTERGOOD GENERATING STN | PLAYA DEL REY, Los Angeles, CA | Pass | Local |
| 2024-12-02 | PROCTER & GAMBLE | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-11-26 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2024-11-26 | TAFT PRODUCTION CO. | TAFT, Kern, CA | Pass | Local |
| 2024-11-26 | TAFT PRODUCTION CO. | TAFT, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-25 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2024-11-25 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2024-11-25 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2024-11-22 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-22 | SUNOPTA ASEPTIC — high-priority violation on file | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-11-22 | SUNOPTA ASEPTIC — high-priority violation on file | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-11-21 | SDG&E (FRMLY PALOMAR ENERGY) | ESCONDIDO, San Diego, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-20 | ULTRAMAR INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.