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 |
|---|---|---|---|---|
| 2023-06-28 | FRITO-LAY INC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | SO CAL GAS CO | VALENCIA, Los Angeles, CA | Fail | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | TURLOCK IRRIGATION DISTRICT | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-27 | PACIFIC SOUTHWEST CONTAINER, LLC | MODESTO, Stanislaus, CA | Fail | Local |
| 2023-06-26 | SB CO LANDFILL - VICTORVILLE | VICTORVILLE, San Bernardino, CA | Pass | Local |
| 2023-06-26 | SO CAL GAS CO | VALENCIA, Los Angeles, CA | Fail | Local |
| 2023-06-26 | LONG BEACH GENERATION LLC | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2023-06-26 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Fail | Local |
| 2023-06-26 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Fail | Local |
| 2023-06-26 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Fail | Local |
| 2023-06-26 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Fail | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-26 | LINN OPERATING INC | KERN COUNTY, Kern, CA | Pass | Local |
| 2023-06-24 | WALNUT CREEK ENERGY, LLC | CITY OF INDUSTRY, Los Angeles, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-24 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | MITSUBISHI CHEMICAL CARBON FIBER AND COMPOSITES — high-priority violation on file | SACRAMENTO, Sacramento, CA | Fail | Local |
| 2023-06-23 | EQUILON ENT LLC, SHELL OIL PROD. U S | SIGNAL HILL, Los Angeles, CA | Pass | Local |
| 2023-06-23 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | LA CITY, DWP SCATTERGOOD GENERATING STN | PLAYA DEL REY, Los Angeles, CA | Pass | Local |
| 2023-06-22 | LIFOAM INDUSTRIES LLC | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2023-06-22 | EQUILON ENTER.LLC , SHELL OIL PROD. U S | VAN NUYS, Los Angeles, CA | Pass | Local |
| 2023-06-22 | THUMS LONG BEACH CO — high-priority violation on file | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2023-06-22 | HOAG MEMORIAL HOSPITAL PRESBYTERIAN | NEWPORT BEACH, Orange, CA | Pass | Local |
| 2023-06-22 | HOAG MEMORIAL HOSPITAL PRESBYTERIAN | NEWPORT BEACH, Orange, CA | Pass | Local |
| 2023-06-22 | SIERRA ALUMINUM, DIV OF SAMUEL, SON & CO | FONTANA, San Bernardino, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-06-22 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2023-06-22 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2023-06-22 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.