EPA Air · stack tests by county and year
Air-emissions stack tests in Ventura County, California, 2026
- 13Stack 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 Ventura County, California during 2026. 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 Ventura County facility page.
Ventura County, California, 2026
Air-emissions stack tests in Ventura County, other years
Air-emissions stack tests recorded in Ventura County, California, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-28 | AERA ENERGY LLC | Pass | Local |
| 2026-05-28 | PROCTER & GAMBLE PAPER PRODUCTS — high-priority violation on file | Pass | Local |
| 2026-05-19 | ARCOSA LIGHTWEIGHT, FRAZIER PARK (1603) — high-priority violation on file | Pass | Local |
| 2026-05-13 | SOUTHERN CALIFORNIA GAS CO | Pass | Local |
| 2026-05-12 | VRSD OXNARD LANDFILLS | Pass | Local |
| 2026-05-06 | PROCTER & GAMBLE PAPER PRODUCTS — high-priority violation on file | Pass | Local |
| 2026-04-30 | EF OXNARD LLC | Pass | Local |
| 2026-04-28 | AERA ENERGY LLC | Pass | Local |
| 2026-04-02 | NEW-INDY OXNARD, LLC | Pass | Local |
| 2026-03-19 | GLASS HOUSE CAMARILLO CULTIVATION LLC | Pass | Local |
| 2026-03-17 | PROCTER & GAMBLE PAPER PRODUCTS — high-priority violation on file | Pass | Local |
| 2026-02-24 | PROCTER & GAMBLE PAPER PRODUCTS — high-priority violation on file | Fail | Local |
| 2026-01-30 | SIMI VALLEY LANDFILL & RECYCLING CENTER — high-priority violation on file | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.