EPA Air · stack tests by county and year
Air-emissions stack tests in Monterey County, California, 2025
- 49Stack 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 Monterey 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 Monterey County facility page.
Monterey County, California, 2025
- Inspections 10
Air-emissions stack tests in Monterey County, other years
Air-emissions stack tests recorded in Monterey County, California, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-30 | AERA ENERGY LLC | Pass | Local |
| 2025-12-12 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-12-12 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-12-12 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-12-12 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-12-10 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-12-04 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-12-03 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-11-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-11-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-11-13 | AERA ENERGY LLC | Pass | Local |
| 2025-11-11 | SALINAS VALLEY SOLID WASTE AUTHORITY | Pass | Local |
| 2025-10-14 | MONTEREY REGIONAL WASTE MGMT DIST | Pass | Local |
| 2025-10-09 | AERA ENERGY LLC | Pass | Local |
| 2025-09-30 | MONTEREY ONE WATER (PREVIOUSLY MONTEREY REGIONAL WTR POLLUTION CTRL) | Pass | Local |
| 2025-09-03 | MONTEREY ONE WATER (PREVIOUSLY MONTEREY REGIONAL WTR POLLUTION CTRL) | Pass | Local |
| 2025-09-03 | MONTEREY ONE WATER (PREVIOUSLY MONTEREY REGIONAL WTR POLLUTION CTRL) | Pass | Local |
| 2025-08-04 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-08-04 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-08-04 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-08-04 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-08-01 | CALPINE KING CITY COGEN, LLC | Pass | Local |
| 2025-07-29 | CALPINE KING CITY COGEN, LLC | Pass | Local |
| 2025-07-29 | CALPINE KING CITY COGEN, LLC | Pass | Local |
| 2025-07-29 | CALPINE KING CITY COGEN, LLC | Pass | Local |
| 2025-06-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-06-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-06-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-06-17 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-06-16 | AERA ENERGY LLC | Pass | Local |
| 2025-06-16 | AERA ENERGY LLC | Pass | Local |
| 2025-06-16 | AERA ENERGY LLC | Pass | Local |
| 2025-06-16 | AERA ENERGY LLC | Pass | Local |
| 2025-06-16 | AERA ENERGY LLC | Pass | Local |
| 2025-03-18 | AERA ENERGY LLC | Pass | Local |
| 2025-03-18 | AERA ENERGY LLC | Pass | Local |
| 2025-03-10 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-03-10 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-03-10 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-03-10 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | Pass | Local |
| 2025-02-11 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-02-10 | CHEVRON U.S.A. INC. | Fail | Local |
| 2025-02-10 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-02-10 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-02-10 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-02-10 | CHEVRON U.S.A. INC. | Pass | Local |
| 2025-02-04 | CHEVRON POWER HOLDINGS, INC. FOR SALINAS RIVER COGENERATION FACILITY | Pass | Local |
| 2025-01-16 | AERA ENERGY LLC | Pass | Local |
| 2025-01-16 | AERA ENERGY LLC | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.