EPA Air · stack tests by county and year
Air-emissions stack tests in Kern County, California, 2025
- 3,380Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Kern County, California during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Kern County facility page.
Kern County, California, 2025
- Inspections 820
Air-emissions stack tests in Kern County, other years
Air-emissions stack tests recorded in Kern County, California, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-13 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-09-11 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-09-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-09-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-09-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-09-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-09-02 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | Pass | Local |
| 2025-08-28 | LINN OPERATING INC — high-priority violation on file | Pass | Local |
| 2025-08-28 | LINN OPERATING INC — high-priority violation on file | Pass | Local |
| 2025-08-28 | LINN OPERATING INC — high-priority violation on file | Pass | Local |
| 2025-08-28 | LINN OPERATING INC — high-priority violation on file | Pass | Local |
| 2025-08-21 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-08-21 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-20 | E&B NATIONAL RESOURCES MANAGEMENT | Pass | Local |
| 2025-08-19 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
| 2025-08-19 | PASTORIA ENERGY FACILITY, LLC | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.